# Embraer Service Bulletin 190-54-0016

## Copies (2)

Copies the FAA filed in AD dockets on regulations.gov, newest revision first. A newer revision may exist.

- Revision 04 ("SB190-54-0016 rev 4"), 60 pages: PDF https://openairdocs.org/files/sha256/b1/56/b156b0b7b5b5f9e0a14e5bba3dfba23bf5d7362f06a1957dc7e1da0a6bdaa27f; text https://openairdocs.org/service-documents/embraer/sb-190-54-0016/file/b156b0b7b5b5.md. Rights: © Embraer S.A. Filed by the FAA in regulations.gov docket FAA-2018-0509; AD 2018-19-28 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Revision 02 ("SB190-54-0016R02"), 54 pages: PDF https://openairdocs.org/files/sha256/65/c3/65c393f705513eaf0d41f03fa9d295c5feb784a969028c1c910c15ac1147cdca; text https://openairdocs.org/service-documents/embraer/sb-190-54-0016/file/65c393f70551.md. Rights: © Embraer S.A. Filed by the FAA in regulations.gov docket FAA-2021-0692, the docket of AD 2021-25-02. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Embraer](https://openairdocs.org/service-documents/embraer.md)
- Type: Service bulletin (Service Bulletin)
- Number: 190-54-0016
- Latest revision known: 190-54-0016, Revision 04, dated December 7, 2017 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/embraer/sb-190-54-0016

## ADs that cite it (1) (OpenAirDocs)

Newest first, with the revision each names, as OpenAirDocs read it from the AD's text.

- [AD 2018-19-28](https://openairdocs.org/ad/2018-19-28.md), effective Nov 2, 2018: Revisions 01, 02, 03 and 04

Also cited in [1 proposed AD](https://openairdocs.org/service-documents/embraer/sb-190-54-0016/proposed.md).

## Text (60 pages)

Revision 04, the newest copy. Rights: © Embraer S.A. Filed by the FAA in regulations.gov docket FAA-2018-0509; AD 2018-19-28 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. Each page's text from the PDF; open the PDF at a page with #page=N.

### Page 1

1. DESCRIPTION 
This sheet informs about Revision 04 to the Service Bulletin 190-54-0016.
This is a complete reissue of this Service Bulletin.
2. ADDITIONAL ACTION 
A. Applicable to GROUP 3
Aircraft that have complied with the revision 00 or revision 01 or revision 02 of this bulletin need
additional action according to PART III of this bulletin.
B. Applicable to ALL GROUPS
Aircraft that have complied with the revision 03 of this bulletin do not need any additional action.
3. RECORD OF REVISION 
Basic issue: Sep 22, 2015.
Revision 01: Jan 18, 2016.
Revision 02: Sep 12, 2016.
Revision 03: May 18, 2017.
Revision 04: Dec 07, 2017.
4. HIGHLIGHTS 
The topics, affected pages and a brief description of the content-related changes introduced by this revision
are presented below.
Revision bars are shown in the left margin of each page to show where significant changes were made. Text
displacement and text format changes are not indicated.
TOPIC/PAGE DESCRIPTION OF REVISION
1. PLANNING INFORMATION
1.A. SB EFFECTIVITY / 01 Updated the information.
1.C. REASON / 03 Added reason of Revision 04 and updated theexpected benefits information.
1.E. COMPLIANCE / 05 Updated the RC (Required for Compliance) note.
3. ACCOMPLISHMENT INSTRUCTIONS / 15, 17
thru 19 and 21
Updated the RC (Required for Compliance) note,
identified the RC steps and added a note to inform
the meanings of the flexible language "in
accordance with" and "refer to".
Figure 2 / 32 thru 37 and 39 thru 43 Updated the Figure to identify the service bulletinsteps that are RC Exempt.
Figure 2 / 44 thru 49 and 51 thru 55 Updated the Figure to identify the service bulletinsteps that are RC Exempt.
TRANSMITTAL LETTER
SB 190-54-0016
Page 1 of 1
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 2

(No text on this page.)

### Page 3

NACELLES/PYLONS - LH/RH PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
In connection with the use of this document, Embraer does not provide any express or implied warranties and expressly disclaims any
warranty of merchantability or fitness for a particular purpose.
This document contains trade secrets, confidential, proprietary information of Embraer and technical data subject to U.S. Export
Administration Regulation ("EAR") and other countries export control laws and regulations. Diversion contrary to the EAR and other laws
and regulations is strictly forbidden. The above restrictions may apply to data on all pages of this document.
THIS SERVICE BULLETIN SUPERSEDES SB190-54-0015.
1. PLANNING INFORMATION 
A. SB EFFECTIVITY 
Aircraft affected:
(1) GROUP 1
MODEL SN
Embraer 190( ) and 195( )
19000002, 19000004, 19000006 thru 19000108, 19000110
thru 19000139, 19000141 thru 19000158, 19000160 thru
19000176, 19000178 thru 19000202, 19000204 thru
19000224, 19000226 thru 19000235, 19000237 thru
19000242, 19000244 thru 19000260, 19000262 thru
19000277, 19000279 thru 19000295, 19000297 thru
19000306, 19000308 thru 19000316, 19000318 thru
19000361, 19000363 thru 19000437, 19000439 thru
19000452, 19000454 thru 19000466, 19000468 thru
19000525, 19000527 thru 19000533, 19000535 thru
19000558, 19000560 thru 19000570, 19000572 thru
19000610, 19000612 thru 19000631, and 19000633 thru
19000636, if Pre-Mod of the previous issues of this bulletin.
(2) GROUP 2
MODEL SN
Embraer 190( ) and 195( )
19000637 thru 19000640, 19000642 thru 19000655,
19000657 thru 19000682, 19000684 thru 19000686,
19000688, 19000689, and 19000692 thru 19000694, if Pre-
Mod of the previous issues of this bulletin.
(3) GROUP 3
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 1 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 4

MODEL SN
Embraer 190( ) and 195( )
19000002, 19000004, 19000006 thru 19000108, 19000110
thru 19000139, 19000141 thru 19000158, 19000160 thru
19000176, 19000178 thru 19000202, 19000204 thru
19000224, 19000226 thru 19000235, 19000237 thru
19000242, 19000244 thru 19000260, 19000262 thru
19000277, 19000279 thru 19000295, 19000297 thru
19000306, 19000308 thru 19000316, 19000318 thru
19000361, 19000363 thru 19000437, 19000439 thru
19000452, 19000454 thru 19000466, 19000468 thru
19000525, 19000527 thru 19000533, 19000535 thru
19000558, 19000560 thru 19000570, 19000572 thru
19000610, 19000612 thru 19000631, 19000633 thru
19000640, 19000642 thru 19000655, 19000657 thru
19000682, 19000684 thru 19000686, 19000688, 19000689,
and 19000692 thru 19000694, if Post-Mod of revision 00 or
01 or 02 of this bulletin.
Affected component:
None.
In-production effectivity:
Embraer 190( ) and 195( ) model aircraft SN 19000687, 19000690, 19000695 and on have an
equivalent factory-included modification.
B. CONCURRENT REQUIREMENTS 
None.
C. REASON 
(1) HISTORY
Embraer has received reports about fuse pin migration from the LH/RH pylon lower link fitting
inboard and outboard. These events have happened on aircraft Post-Mod SB190-54-0013
(INSTALLATION OF LOCK ASSY AT LOWER LINK FITTING INBOARD AND OUTBOARD) or
that have an equivalent modification of this bulletin factory-incorporated. This event was
addressed in the past through SB190-54-0015 (REPLACEMENT OF THE LOWER LINK
FITTING INBOARD AND OUTBOARD ATTACHING PARTS).
Embraer engineering concludes that to prevent the fuse pin migration from the LH/RH pylon
lower link fitting inboard and outboard, some modifications on the attaching parts of the LH/RH
pylon lower link fitting inboard and outboard shall be implemented as applicable, according to the
aircraft configuration.
For this, the plain bushings made of CRES15-5PH are being replaced by new improved ones
made of Beryllium Copper C17200, a lock washer made of CRES15-5PH and a L-profile are
being added to the assembly, and they will be installed on the fuse pin head’s side in the LH/RH
pylon lower link fitting inboard and outboard. Also, the internal shear pin of the fuse pins are
being replaced by new ones with greater head diameter, that will work as an additional retention
back-up to the nut of the external shear pin.
Besides, Embraer received one report about wrong part number of the outboard external shear
pin installed in the LH/RH pylon lower link fitting. This Service Bulletin will give the instructions to
SERVICE BULLETIN
SB 190-54-0016
Page 2 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 5

inspect the identifications written on the outboard external shear pins to make sure that they are
according to the engineering drawings.
(2) OBJECTIVE
This bulletin gives the instructions to install the lock washer and L-profile on the fuse pin’s head
side, to replace the plain bushings of the LH/RH pylon lower link fitting inboard and outboard with
new improved ones and to replace the internal shear pin of the fuse pins as applicable, according
to the aircraft configuration. Also, this bulletin gives the instructions to inspect the identifications
written on the outboard external shear pins and, if necessary, to replace them with a new ones.
(3) EXPECTED BENEFITS
To prevent occurrences of fuse pin migration from the LH/RH pylon lower link fitting inboard and
outboard which could lead to separation of the engine from the wing.
(4) REVISION HISTORY
REVISION 01: This revision has been issued to change the SB compliance from 7500 Flight
Hours to 15000 Flight Hours.
REVISION 02: This revision has been issued to inform that this bulletin supersedes
SB190-54-0015 and to inform the bulletin parts that comply with the RC
(Required for Compliance).
REVISION 03: This revision has been issued to include the inspection of the identification
written on the outboard external shear pin.
REVISION 04: This revision has been issued to update the service bulletin steps that comply
with the RC (Required for Compliance).
D. DESCRIPTION 
This Bulletin is divided into 3 PARTS, as follows:
PART I LH PYLON LOWER LINK FITTING - ATTACHING PARTSMODIFICATION
Applicable to: Applicable to GROUPS 1 and 2
The modification presented in PART I of this bulletin consists of the modifications that follows:
(1) Applicable to GROUP 1
– Replacement of the plain bushings of the LH pylon lower link fitting inboard and outboard.
– Installation of the lock washer with the L-profile on the fuse pin’s head side.
– Replacement of the internal shear pin of the fuse pins of the LH pylon lower link fitting
inboard and outboard with the new ones with greater head diameter.
– Inspection of the identifications written on the LH outboard external shear pin to make sure
that it is according to the engineering drawings.
To do this, it is necessary to get access to the work area by removing the aircraft engines, fan
cowls, thrust reversers, pylon forward, side and aft fairings. Also the use of the pylon lifting
tooling is recommended to support the LH pylon, during the modifications of the attaching parts of
the LH pylon lower link fitting inboard and outboard. This is to prevent the misalignment of the
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 3 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 6

attaching points of the LH pylon lower link fitting inboard and outboard, after you remove the fuse
pin from the assembly.
(2) Applicable to GROUP 2
– Replacement of the internal shear pin of the fuse pins of the LH pylon lower link fitting
inboard and outboard with the new ones with greater head diameter.
– Inspection of the identifications written on the LH outboard external shear pin to make sure
that it is according to the engineering drawings.
To do this, it is necessary to get access to the LH pylon at zone 419 and remove the skin fairings.
PART II RH PYLON LOWER LINK FITTING - ATTACHING PARTSMODIFICATION
Applicable to: Applicable to GROUPS 1 and 2
The modification presented in PART II of this bulletin consists of the modifications that follows:
(1) Applicable to GROUP 1
– Replacement of the plain bushings of the RH pylon lower link fitting inboard and outboard.
– Installation of the lock washer with the L-profile on the fuse pin’s head side.
– Replacement of the internal shear pin of the fuse pins of the RH pylon lower link fitting
inboard and outboard with the new ones with greater head diameter.
– Inspection of the identifications written on the RH outboard external shear pin to make sure
that it is according to the engineering drawings.
To do this, it is necessary to get access to the work area by removing the aircraft engines, fan
cowls, thrust reversers, pylon forward, side and aft fairings. Also the use of the pylon lifting
tooling is recommended to support the RH pylon, during the modifications of the attaching parts
of the RH pylon lower link fitting inboard and outboard. This is to prevent the misalignment of the
attaching points of the RH pylon lower link fitting inboard and outboard, after you remove the fuse
pin from the assembly.
(2) Applicable to GROUP 2
– Replacement of the internal shear pin of the fuse pins of the RH pylon lower link fitting
inboard and outboard with the new ones with greater head diameter.
– Inspection of the identifications written on the RH outboard external shear pin to make sure
that it is according to the engineering drawings.
To do this, it is necessary to get access to the RH pylon at zone 429 and remove the skin
fairings.
PART III ADDITIONAL ACTION - INSPECTION OF THE LH AND RHOUTBOARD EXTERNAL SHEAR PIN
Applicable to: Applicable to GROUP 3
The modification presented in PART III of this bulletin consists of doing the inspection of the
identifications written on the LH and RH outboard external shear pins to make sure that they are
according to the engineering drawings.
SERVICE BULLETIN
SB 190-54-0016
Page 4 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 7

To do this, it is necessary to get access to the LH and RH pylon area and remove the side fairing (skin
5 assembly).
NOTE: The modification presented in this bulletin does not affect Fatigue Critical Structure (FCS).
E. COMPLIANCE 
(1) APPLICABLE TO PART I
Embraer recommends the accomplishment of PART I of this bulletin in the next 15000 Flight
Hour(s) from the first issue date of this bulletin.
(2) APPLICABLE TO PART II
Embraer recommends the accomplishment of PART II of this bulletin in the next 15000 Flight
Hour(s) from the first issue date of this bulletin.
(3) APPLICABLE TO PART III
Embraer recommends the accomplishment of PART III of this bulletin at the next suitable
maintenance opportunity.
NOTE: The indication RC (Required for Compliance) is presented in the accomplishment instructions
and/or figures. If this service bulletin is mandated by an Airworthiness Directive (AD) that
refers to any step identified as RC, it must be done to comply with the AD. If a step is
indicated as "RC Exempt", then the RC requirement is removed from that step. Steps not
identified with RC are recommended and may be deviated from, done as a part of other
actions, or done with accepted methods different from those given in the SB provided that any
RC step can still be done and the aircraft can be put back to a serviceable condition. An
Alternative Method of Compliance (AMOC) is not necessary in case of deviations of the steps
that are not identified as RC.
F. APPROVAL 
The changes to the type design specified in this Service Bulletin have been approved by: Agência
Nacional de Aviação Civil (ANAC).
NOTE: If any aircraft listed in the SB effectivity has an incorporated modification or repair that is not
from EMBRAER and which affects the content of this Service Bulletin, the operator will take
full responsibility for obtaining approval by a regulatory agency for any adaptation necessary
before the incorporation of this Service Bulletin.
G. ESTIMATED MANPOWER 
This is an estimate of the manpower necessary to accomplish this Service Bulletin on a single aircraft.
It is intended for direct labor only, performed by experienced personnel and does not include the time
to plan, prepare or inspect the work. Sealant, paint or adhesive curing times are not included either.
It is assumed that all the tools, parts and other means are readily available when necessary.
An adjustment to these values may be necessary to meet particular circumstances.
(1) APPLICABLE TO PART I
1) Applicable to GROUP 1:
– Access opening: 48.0 man-hours.
– Inspection: 0.25 man-hours.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 5 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 8

– Modification: 16.5 man-hours.
– Access closure: 67.5 man-hours.
– Test: 3.0 man-hours.
2) Applicable to GROUP 2:
– Access opening: 1.0 man-hour.
– Inspection: 0.25 man-hours.
– Modification: 4.0 man-hours.
– Access closure: 1.5 man-hours.
– Test: None.
(2) APPLICABLE TO PART II
1) Applicable to GROUP 1:
– Access opening: 48.0 man-hours.
– Inspection: 0.25 man-hours.
– Modification: 16.5 man-hours.
– Access closure: 67.5 man-hours.
– Test: 3.0 man-hours.
2) Applicable to GROUP 2:
– Access opening: 1.0 man-hour.
– Inspection: 0.25 man-hours.
– Modification: 4.0 man-hours.
– Access closure: 1.5 man-hours.
– Test: None.
(3) APPLICABLE TO PART III
(a) Applicable to GROUP 3:
– Access opening: 1.0 man-hour.
– Inspection: 0.5 man-hours.
– Modification: None.
– Access closure: 1.0 man-hour.
– Test: None.
H. WEIGHT AND BALANCE 
(1) APPLICABLE TO PART I:
(a) Applicable to GROUP 1
SERVICE BULLETIN
SB 190-54-0016
Page 6 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 9

1 EMBRAER 190( ) model aircraft:
– Change in basic weight: + 0.205 lb (+ 0.093 kg).
– Change in basic moment: + 130.288 lb.in (+ 1.500 kg.m).
2 EMBRAER 195( ) model aircraft:
– Change in basic weight: + 0.205 lb (+ 0.093 kg).
– Change in basic moment: + 136.861 lb.in (+ 1.576 kg.m).
(b) Applicable to GROUP 2
1 EMBRAER 190( ) model aircraft:
None.
2 EMBRAER 195( ) model aircraft:
None.
(2) APPLICABLE TO PART II:
(a) Applicable to GROUP 1
1 EMBRAER 190( ) model aircraft:
– Change in basic weight: + 0.205 lb (+ 0.093 kg).
– Change in basic moment: + 130.288 lb.in (+ 1.500 kg.m).
2 EMBRAER 195( ) model aircraft:
– Change in basic weight: + 0.205 lb (+ 0.093 kg).
– Change in basic moment: + 136.861 lb.in (+ 1.576 kg.m).
(b) Applicable to GROUP 2
1 EMBRAER 190( ) model aircraft:
None.
2 EMBRAER 195( ) model aircraft:
None.
(3) APPLICABLE TO PART III:
(a) Applicable to GROUP 3
1 EMBRAER 190( ) model aircraft:
None.
2 EMBRAER 195( ) model aircraft:
None.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 7 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 10

I. SOFTWARE ACCOMPLISHMENT SUMMARY 
None.
J. REFERENCES 
AIPC 190/( ) Aircraft Illustrated Parts Catalog - 54-50-00 - NACELLES/PYLONS.
AMM 190/( ) Aircraft Maintenance Manual PART II - 20-00-00, 20-10-01, and 20-10-03 -STANDARD PRACTICES-AIRFRAME.
AMM 190/( ) Aircraft Maintenance Manual PART II - 54-50-21, 54-50-22, and 54-50-23 -NACELLES/PYLONS.
AMM 190/( ) Aircraft Maintenance Manual PART II - 71-00-01 - POWERPLANT.
AMM 190/( ) Aircraft Maintenance Manual PART II - 78-30-01 - EXHAUST.
SB190-54-0015 NACELLES/PYLONS - REPLACEMENT OF THE LOWER LINK FITTINGINBOARD AND OUTBOARD ATTACHING PARTS.
K. OTHER PUBLICATIONS AFFECTED 
AIPC 190/( ) Aircraft Illustrated Parts Catalog - 54-50-00 - NACELLES/PYLONS.
SERVICE BULLETIN
SB 190-54-0016
Page 8 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 11

2. MATERIAL INFORMATION 
A. MATERIAL - PRICE AND AVAILABILITY 
(1) MATERIAL AVAILABLE FROM EMBRAER
The kits below required for the accomplishment of this bulletin will be available from Embraer at
no charge to the operator.
Embraer will receive the "no charge" orders during a period of 36 months after the first release
date of this service bulletin.
The estimated delivery date will be provided by Embraer upon request.
When ordering, specify SB 190-54-0016 and Top Kit PN presented in Table below, as applicable.
RE
F TOP KIT PN
Unit
Price
(US$)
TOP KIT EFFECTIVITY
01 BS1905400160001 1,589.83 Applicable to aircraft of GROUP 1(PART I)
02 BS1905400160002 1,589.83 Applicable to aircraft of GROUP 1(PART II)
03 BS1905400160003 863.46 Applicable to aircraft of GROUP 2(PART I)
04 BS1905400160004 863.46 Applicable to aircraft of GROUP 2(PART II)
(2) MATERIAL AVAILABLE FROM OTHER VENDORS
None.
B. INDUSTRY SUPPORT INFORMATION 
None.
C. MATERIAL NECESSARY FOR EACH AIRCRAFT 
When applicable, the use of alternative or similar parts is allowed, once it is approved by Embraer as
indicated in the related Embraer Technical Publications or through a formal Embraer communication
channel.
The necessary expendable or consumable parts presented in the AMM Tasks mentioned in this bulletin
can be acquired from the operator's inventories or ordered as spares.
When necessary, additional information is presented as Notes in the respective Table.
For ordering information and Top Kit effectivity refer to section 2.A. MATERIAL - PRICE AND
AVAILABILITY of this Bulletin.
(1) TOP KITS AND KITS
Kit Summary: Top Kit Composition (Kit PN / Quantity)
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 9 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 12

Top Kit PN 191-32894-601 191-32894-603 191-32895-601 191-32895-603
BS1905400160001 01 - - -
BS1905400160002 - 01 - -
BS1905400160003 - - 01 -
BS1905400160004 - - - 01
(a) Applicable to PART I of this bulletin (GROUP 1).
Kit PN 191-32894-601 - Lock Washer, L-profile, Plain Bushing and Internal Shear
Pin Installation (LH Pylon)
NEW PN DESCRIPTION OLD PN
QT
Y
SU
P
Q
T
Y
R
Q
D
DIS
P/
Not
es
190-33685-023 Plain Bushing(Inboard) 190-33685-021 01 01 3
190-33686-023 Plain Bushing(Outboard) 190-33686-021 02 02 3
191-28263-401 Lock Washer(Outboard) - 01 01 2
191-28264-401 Lock Washer(Inboard) - 01 01 2
191-28265-001 Profile-L (Inboard/Outboard) - 02 02 2
191-32676-001 Internal Shear Pin(Outboard) 190-15178-005 01 01 3
191-32677-001 Internal Shear Pin(Inboard) 190-15181-005 01 01 3
MS24665-372 Cotter Pin MS24665-372 02 02 7
MS24665-376 Cotter Pin MS24665-374 02 02 3
NAS1149C1432R Washer NAS1149C1490R 07 AR 3 /[1]
NAS1802-04-5 Screw - 04 04 2
[1] Install washer PN NAS1149C1432R according to the need of the cotter pin installation.
(b) Applicable to PART II of this bulletin (GROUP 1).
SERVICE BULLETIN
SB 190-54-0016
Page 10 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 13

Kit PN 191-32894-603 - Lock Washer, L-profile, Plain Bushing and Internal Shear
Pin Installation (RH Pylon)
NEW PN DESCRIPTION OLD PN
QT
Y
SU
P
Q
T
Y
R
Q
D
DIS
P/
Not
es
190-33685-023 Plain Bushing(Inboard) 190-33685-021 01 01 3
190-33686-023 Plain Bushing(Outboard) 190-33686-021 02 02 3
191-28263-402 Lock Washer(Outboard) - 01 01 2
191-28264-401 Lock Washer(Inboard) - 01 01 2
191-28265-001 Profile-L (Inboard) - 01 01 2
191-28265-002 Profile-L (Outboard) - 01 01 2
191-32676-001 Internal Shear Pin(Outboard) 190-15178-005 01 01 3
191-32677-001 Internal Shear Pin(Inboard) 190-15181-005 01 01 3
MS24665-372 Cotter Pin MS24665-372 02 02 7
MS24665-376 Cotter Pin MS24665-374 02 02 3
NAS1149C1432R Washer NAS1149C1490R 07 AR 3 /[1]
NAS1802-04-5 Screw - 04 04 2
[1] Install washer PN NAS1149C1432R according to the need of the cotter pin installation.
(c) Applicable to PART I of this bulletin (GROUP 2).
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 11 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 14

Kit PN 191-32895-601 - Internal Shear Pin Replacement (LH Pylon)
NEW PN DESCRIPTION OLD PN
QT
Y
SU
P
Q
T
Y
R
Q
D
DIS
P/
Not
es
191-32676-001 Internal Shear Pin(Outboard) 190-15178-005 01 01 3
191-32677-001 Internal Shear Pin(Inboard) 190-15181-005 01 01 3
MS24665-372 Cotter Pin MS24665-372 02 02 7
MS24665-376 Cotter Pin MS24665-374 02 02 3
(d) Applicable to PART II of this bulletin (GROUP 2).
Kit PN 191-32895-603 - Internal Shear Pin Replacement (RH Pylon)
NEW PN DESCRIPTION OLD PN
QT
Y
SU
P
Q
T
Y
R
Q
D
DIS
P/
Not
es
191-32676-001 Internal Shear Pin(Outboard) 190-15178-005 01 01 3
191-32677-001 Internal Shear Pin(Inboard) 190-15181-005 01 01 3
MS24665-372 Cotter Pin MS24665-372 02 02 7
MS24665-376 Cotter Pin MS24665-374 02 02 3
(2) MATERIAL TO BE PROCURED
(a) Parts
If necessary, the parts below should be procured from the operator’s inventories, or from
the manufacturer, or ordered as spares from Embraer.
Applicable to PARTS I and II of this bulletin
NEW PN DESCRIPTION OLD PN QTY DISP/Notes
PE22072L14 Castellated Nut PE22072L14 AR 6/[1]
[1] The castellated nut PN PE22072L14 should be replaced with a new one if it is out of the drag torque range of 7.91 to 67.79 N.m (70 to
600 lb.in).
SERVICE BULLETIN
SB 190-54-0016
Page 12 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 15

Applicable to PARTS I thru III of this bulletin
NEW PN DESCRIPTION OLD PN QTY DISP/Notes
190-15179-003 Outboard ExternalShear Pin 190-15179-001 AR 6/[1]
[1] If the outboard external shear pin PN 190-15179-001 is installed and the production order ID written on it is different from the number
34857951, replace the outboard external shear pin with a new one PN 190-15179-003. Refer to the inspection described in the section 3.
ACCOMPLISHMENT INSTRUCTIONS.
(b) Consumable Materials
The material below or equivalent required for the accomplishment of this bulletin should be
procured from the operator’s inventories or from a local supplier.
Applicable to PARTS I and II of this bulletin
NEW PN DESCRIPTION OLD PN QTY DISP/Notes
ARDROX AV-15 Corrosion InhibitingCompound - AR 6 / [1] [2]
F-925 Torque Seal - AR 6 / [3]
COR-BAN 27L Corrosion InhibitingCompound - AR 6 / [4]
[1] Corrosion Inhibiting Compound, Type III (MEP 10-063) ARDROX AV-15.
[2] This Corrosion Inhibitor Compound, Type I (MEP 10-063) ARDROX AV-8 can be used as alternative to ARDROX AV-15, during the ac-
complishment of this bulletin.
[3] Yellow Torque Seal (MEP 09-068) F-925.
[4] Corrosion Inhibiting Compound (MEP_09-075) COR-BAN 27L.
DISPOSITION: 2 = Incorporate part bearing NEW PN
3 = Replace part bearing OLD PN with part bearing NEW PN
6 = Apply as required
7 = Replace with part bearing same PN
QUANTITY: AR = As Required
(c) Kit Updating
None.
D. MATERIAL NECESSARY FOR EACH SPARE 
None.
E. REIDENTIFIED PARTS 
None.
F. TOOLING - PRICE AND AVAILABILITY 
Whenever required, the necessary tooling presented in the AMM Tasks mentioned in this bulletin
should be procured from the operator’s inventories or ordered as spares.
(1) Applicable to GROUPS 1 AND 2
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 13 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 16

(a) The tooling presented below, required for the accomplishment of the PARTS I and II of this
bulletin, should be acquired directly from the supplier.
ITEM PN DESCRIPTION QTY Supplier
- Pin Punch Set - 3.0 to 3.5mm (0.118 to 0.138 in) 01
Commercial
ly
Available /
[1]
[1] This tooling can be used to safety the internal and external shear pins to prevent them from turning during the castellated nut removal/
installation.
(2) Applicable to GROUP 1
(a) The tooling presented below, required for the accomplishment of the PARTS I and II of this
bulletin, will be available from Embraer. The estimated delivery date will be provided by
Embraer upon request.
ITEM PN DESCRIPTION QTY Supplier
MAT05MV.01857 Main Hydraulic Jack 02 Embraer
CLD1SA-V.02289 Auxiliary Hydraulic Jack 01 Embraer
170T06490-401 Pylon AFT Device 01 Embraer
170T06491-401 Pylon Forward Device 01 Embraer
190T06489-401 AFT Device Support 02 Embraer
SERVICE BULLETIN
SB 190-54-0016
Page 14 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 17

3. ACCOMPLISHMENT INSTRUCTIONS 
NOTE:
1) The definition of a General Visual Inspection (GVI) for this Service Bulletin is: “A visual
examination of an interior or exterior area, installation or assembly to detect obvious damage,
failure or irregularity. This level of inspection is made from within touching distance, unless
otherwise specified. A mirror may be necessary to enhance visual access to all exposed
surfaces in the inspection area. This level of inspection is made under normally available
lighting conditions such as daylight, hangar lighting, flashlight or drop-light and may require
removal or opening of access panels or doors. Stands, ladders or platforms may be required
to gain proximity to the area being checked.”
2) Obey all of the WARNINGS and CAUTIONS included in the mentioned manuals and
procedures.
3) The indication RC (Required for Compliance) is presented in the accomplishment instructions
and/or figures. If this service bulletin is mandated by an Airworthiness Directive (AD) that
refers to any step identified as RC, it must be done to comply with the AD. If a step is
indicated as "RC Exempt", then the RC requirement is removed from that step. Steps not
identified with RC are recommended and may be deviated from, done as a part of other
actions, or done with accepted methods different from those given in the SB provided that any
RC step can still be done and the aircraft can be put back to a serviceable condition. An
Alternative Method of Compliance (AMOC) is not necessary in case of deviations of the steps
that are not identified as RC.
4) If it is necessary to remove more parts for access, you can remove those parts. If you can get
access without removing identified parts, it is not necessary to remove all of the identified
parts.
5) These work instructions refer to methods, techniques, and practices described in other
Embraer documents. When the words "refer to" are used and there are other acceptable
methods, techniques, and practices (including tools, equipment, and test equipment), those
acceptable methods, techniques, practices (including tools, equipment, and test equipment)
may be used to complete the work. When the words "in accordance with" are included in the
instruction, the methods, techniques, and practices specified (including tools, equipment, and
test equipment) in the Embraer document must be used.
6) The Manuals and other documents are mentioned as acronyms or with a simplified form.
Refer to section 1.J. REFERENCES for a more complete definition.
7) This Service Bulletin effectivity is divided into 03 aircraft GROUPS according to the related
configuration and the SB itself is divided into 03 PARTS. The SB PARTS division allows their
independent accomplishment.
REFERENCE APPLICATION TABLE
GROUP SBPART FIGURE FIGURE TITLE
1 I and II Figure 1 PYLON LIFTING TOOLING
1 I and II Figure 2 PYLON LOWER LINK FITTING - ATTACHING PARTSMODIFICATION
2 I and II Figure 3 PYLON LOWER LINK FITTING - INTERNAL SHEARPIN REPLACEMENT
1 thru 3 I thru III Figure 4 OUTBOARD EXTERNAL SHEAR PIN INSPECTION
The steps below outline the general accomplishment instructions.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 15 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 18

The detailed sequence is included in the respective figure, when necessary.
WARNING: MAKE SURE THAT THE AIRCRAFT IS IN A SAFE CONDITION BEFORE YOU
ACCOMPLISH THE INSTRUCTIONS DESCRIBED IN THIS SERVICE BULLETIN. THIS IS
TO PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE EQUIPMENT.
A. Make sure that the aircraft is safe for maintenance. Refer to AMM TASK 20-00-00-910-801-A/200  -
Aircraft Maintenance Safety Procedures - Standard Procedures.
B. PART I – LH PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(1) Applicable to GROUP 1
NOTE: It is recommended to use the pylon lifting tooling ( Figure 1 ) to support the LH pylon,
before you do the modifications on the attaching parts of the LH pylon lower link fitting
inboard and outboard. This is to prevent the misalignment of the attaching points of the
LH pylon lower link fitting inboard and outboard, after you remove the fuse pin from the
assembly.
(a) Remove and keep the items that follows to get access to the work area:
1 The LH pylon forward fairings. Refer to AMM TASK 54-50-21-000-801-A/400 - Pylon
Forward Fairings - Removal.
2 The LH pylon side fairings. Refer to AMM TASK 54-50-22-000-801-A/400 - Pylon
Side Fairings - Removal.
3 The LH pylon aft fairings. Refer to AMM TASK 54-50-23-000-801-A/400 - Pylon Aft
Fairings - Removal.
4 The LH thrust reverser. Refer to AMM TASK 78-30-01-000-801-A/400 - Thrust
Reverser - Removal.
5 The LH engine. Refer to AMM TASK 71-00-01-000-801-A/400 - Powerplant -
Removal.
6 If necessary, the applicable support-blocks of the hydraulic tubes. Refer to AMM
TASK 20-10-03-000-801-A/400 - Tubing - Removal.
NOTE: 1) Do it to allow the movement of the hydraulic tubes during the lower link
attaching parts modification.
2) With a commercially available tape or equivalent component, do the
protection of the existing tubes installed in the area near the lower link
fuse pins. Do it to prevent damage on the tubes during the rework.
(b) Install the pylon lifting tooling on the LH pylon. Refer to Figure 1.
(c) Do the inspection on the identifications written on the LH outboard external shear pin to
make sure that it is according to the engineering drawings. Refer to Figure 4.
SERVICE BULLETIN
SB 190-54-0016
Page 16 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 19

Outboard External Shear Pin Inspection
OUTBOARD
EXTERNAL
SHEAR PIN
PRODUCTION
ORDER ID DISPOSITION
PN
190-15179-003 Any No further action required [1]
PN
190-15179-001 = 34857951 No further action required [2]
PN
190-15179-001 ≠ 34857951
Replace the outboard external shear pin with a
new one PN 190-15179-003 [3]
Replace the outboard external shear pin when
you do the modification on the attaching parts of
the LH pylon lower link fitting. Refer to Figure 2
[1] If the part number is PN 190-15179-003, it means that the external shear pin is identified with correct PN and it was manufactured accord-
ing to the engineering drawings.
[2] If the part number is PN 190-15179-001, and the production order ID is the number 34857951, it means that the external shear pin is
identified with wrong PN, but it was manufactured according to the engineering drawings.
[3] If the part number is PN 190-15179-001, and the production order ID is different from the number 34857951, it must be replaced.
(d) [RC] Do the modification on the attaching parts of the LH pylon lower link fitting inboard and
outboard in accordance with Figure 2.
(e) Remove the pylon lifting tooling from the LH pylon. Refer to Figure 1.
(f) Install the items that follows:
1 If applicable, the support-blocks of the hydraulic tubes. Refer to AMM TASK
20-10-03-400-801-A/400 - Tubing - Installation.
2 The LH engine. Refer to AMM TASK 71-00-01-400-801-A/400 - Powerplant -
Installation.
3 The LH thrust reverser. Refer to AMM TASK 78-30-01-400-801-A/400 - Thrust
Reverser - Installation.
4 The LH pylon aft fairings. Refer to AMM TASK 54-50-23-400-801-A/400 - Pylon Aft
Fairings - Installation.
5 The LH pylon side fairings. Refer to AMM TASK 54-50-22-400-801-A/400 - Pylon
Side Fairings - Installation.
6 The LH pylon forward fairings. Refer to AMM TASK 54-50-21-400-801-A/400 - Pylon
Forward Fairings - Installation.
(g) Do the functional test on the thrust reverser. Refer to AMM TASK 78-30-01-720-801-A/500
- Thrust Reverser - Functional Test.
(h) Do the operational test on the powerplant. Refer to AMM TASK 71-00-01-710-801-A/500 -
Powerplant - Operational Test.
(2) Applicable to GROUP 2
(a) Remove and keep the LH pylon side and aft fairings, as applicable. Refer to AMM TASK
54-50-22-000-801-A/400 - Pylon Side Fairings - Removal and to AMM TASK
54-50-23-000-801-A/400 - Pylon Aft Fairings - Removal.
NOTE: Remove and keep the fairings as necessary to get access to the work area.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 17 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 20

(b) If necessary, remove and keep the applicable support-blocks of the hydraulic tubes. Refer
to AMM TASK 20-10-03-000-801-A/400 - Tubing - Removal.
NOTE: 1) Do it to allow the movement of the hydraulic tubes during the lower link
attaching parts modification.
2) With a commercially available tape or equivalent component, do the
protection of the existing tubes installed in the area near the lower link fuse
pins. Do it to prevent damage on the tubes during the rework.
(c) Do the inspection on the identifications written on the LH outboard external shear pin to
make sure that it is according to the engineering drawings. Refer to Figure 4.
Outboard External Shear Pin Inspection
OUTBOARD
EXTERNAL
SHEAR PIN
PRODUCTION
ORDER ID DISPOSITION
PN
190-15179-003 Any No further action required [1]
PN
190-15179-001 = 34857951 No further action required [2]
PN
190-15179-001 ≠ 34857951
Replace the outboard external shear pin with a
new one PN 190-15179-003 [3]
For instructions of outboard external shear pin
replacement, contact the Embraer Technical
Support Department
[1] If the part number is PN 190-15179-003, it means that the external shear pin is identified with correct PN and it was manufactured accord-
ing to the engineering drawings.
[2] If the part number is PN 190-15179-001, and the production order ID is the number 34857951, it means that the external shear pin is
identified with wrong PN, but it was manufactured according to the engineering drawings.
[3] If the part number is PN 190-15179-001, and the production order ID is different from the number 34857951, it must be replaced.
(d) [RC] Replace the internal shear pin of the fuse pins of the LH pylon lower link fitting inboard
and outboard in accordance with Figure 3.
(e) If applicable, install the support-blocks of the hydraulic tubes. Refer to AMM TASK
20-10-03-400-801-A/400 - Tubing - Installation.
(f) Install the LH pylon side and aft fairings. Refer to AMM TASK 54-50-22-400-801-A/400 -
Pylon Side Fairings - Installation and to AMM TASK 54-50-23-400-801-A/400  - Pylon Aft
Fairings - Installation.
(3) Put the aircraft back to a serviceable condition.
(4) Write the accomplishment of PART I of this bulletin in the applicable documents.
C. PART II – RH PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(1) Applicable to GROUP 1
NOTE: It is recommended to use the pylon lifting tooling ( Figure 1 ) to support the RH pylon,
before you do the modifications on the attaching parts of the RH pylon lower link fitting
inboard and outboard. This is to prevent the misalignment of the attaching points of the
RH pylon lower link fitting inboard and outboard, after you remove the fuse pin from the
assembly.
(a) Remove and keep the items that follows to get access to the work area:
SERVICE BULLETIN
SB 190-54-0016
Page 18 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 21

1 The RH pylon forward fairings. Refer to AMM TASK 54-50-21-000-801-A/400 - Pylon
Forward Fairings - Removal.
2 The RH pylon side fairings. Refer to AMM TASK 54-50-22-000-801-A/400  - Pylon
Side Fairings - Removal.
3 The RH pylon aft fairings. Refer to AMM TASK 54-50-23-000-801-A/400 - Pylon Aft
Fairings - Removal.
4 The RH thrust reverser. Refer to AMM TASK 78-30-01-000-801-A/400 - Thrust
Reverser - Removal.
5 The RH engine. Refer to AMM TASK 71-00-01-000-801-A/400  - Powerplant -
Removal.
6 If necessary, the applicable support-blocks of the hydraulic tubes. Refer to AMM
TASK 20-10-03-000-801-A/400 - Tubing - Removal.
NOTE: 1) Do it to allow the movement of the hydraulic tubes during the lower link
attaching parts modification.
2) With a commercially available tape or equivalent component, do the
protection of the existing tubes installed in the area near the lower link
fuse pins. Do it to prevent damage on the tubes during the rework.
(b) Install the pylon lifting tooling on the RH pylon. Refer to Figure 1.
(c) Do the inspection on the identifications written on the RH outboard external shear pin to
make sure that it is according to the engineering drawings. Refer to Figure 4.
Outboard External Shear Pin Inspection
OUTBOARD
EXTERNAL
SHEAR PIN
PRODUCTION
ORDER ID DISPOSITION
PN
190-15179-003 Any No further action required [1]
PN
190-15179-001 = 34857951 No further action required [2]
PN
190-15179-001 ≠ 34857951
Replace the outboard external shear pin with a
new one PN 190-15179-003 [3]
Replace the outboard external shear pin when
you do the modification on the attaching parts of
the RH pylon lower link fitting. Refer to Figure 2
[1] If the part number is PN 190-15179-003, it means that the external shear pin is identified with correct PN and it was manufactured accord-
ing to the engineering drawings.
[2] If the part number is PN 190-15179-001, and the production order ID is the number 34857951, it means that the external shear pin is
identified with wrong PN, but it was manufactured according to the engineering drawings.
[3] If the part number is PN 190-15179-001, and the production order ID is different from the number 34857951, it must be replaced.
(d) [RC] Do the modification on the attaching parts of the RH pylon lower link fitting inboard and
outboard in accordance with Figure 2.
(e) Remove the pylon lifting tooling from the RH pylon. Refer to Figure 1.
(f) Install the items that follows:
1 If applicable, the support-blocks of the hydraulic tubes. Refer to AMM TASK
20-10-03-400-801-A/400 - Tubing - Installation.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 19 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 22

2 The RH engine. Refer to AMM TASK 71-00-01-400-801-A/400  - Powerplant -
Installation.
3 The RH thrust reverser. Refer to AMM TASK 78-30-01-400-801-A/400 - Thrust
Reverser - Installation.
4 The RH pylon aft fairings. Refer to AMM TASK 54-50-23-400-801-A/400 - Pylon Aft
Fairings - Installation.
5 The RH pylon side fairings. Refer to AMM TASK 54-50-22-400-801-A/400  - Pylon
Side Fairings - Installation.
6 The RH pylon forward fairings. Refer to AMM TASK 54-50-21-400-801-A/400 - Pylon
Forward Fairings - Installation.
(g) Do the functional test on the thrust reverser. Refer to AMM TASK 78-30-01-720-801-A/500
- Thrust Reverser - Functional Test.
(h) Do the operational test on the powerplant. Refer to AMM TASK 71-00-01-710-801-A/500 -
Powerplant - Operational Test.
(2) Applicable to GROUP 2
(a) Remove and keep the RH pylon side and aft fairings, as applicable. Refer to AMM TASK
54-50-22-000-801-A/400 - Pylon Side Fairings - Removal and to AMM TASK
54-50-23-000-801-A/400 - Pylon Aft Fairings - Removal.
NOTE: Remove and keep the fairings as necessary to get access to the work area.
(b) If necessary, remove and keep the applicable support-blocks of the hydraulic tubes. Refer
to AMM TASK 20-10-03-000-801-A/400 - Tubing - Removal.
NOTE: 1) Do it to allow the movement of the hydraulic tubes during the lower link
attaching parts modification.
2) With a commercially available tape or equivalent component, do the
protection of the existing tubes installed in the area near the lower link fuse
pins. Do it to prevent damage on the tubes during the rework.
(c) Do the inspection on the identifications written on the RH outboard external shear pin to
make sure that it is according to the engineering drawings. Refer to Figure 4.
Outboard External Shear Pin Inspection
OUTBOARD
EXTERNAL
SHEAR PIN
PRODUCTION
ORDER ID DISPOSITION
PN
190-15179-003 Any No further action required [1]
PN
190-15179-001 = 34857951 No further action required [2]
[1] If the part number is PN 190-15179-003, it means that the external shear pin is identified with correct PN and it was manufactured accord-
ing to the engineering drawings.
[2] If the part number is PN 190-15179-001, and the production order ID is the number 34857951, it means that the external shear pin is
identified with wrong PN, but it was manufactured according to the engineering drawings.
SERVICE BULLETIN
SB 190-54-0016
Page 20 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 23

Outboard External Shear Pin Inspection (Continued)
OUTBOARD
EXTERNAL
SHEAR PIN
PRODUCTION
ORDER ID DISPOSITION
PN
190-15179-001 ≠ 34857951
Replace the outboard external shear pin with a
new one PN 190-15179-003 [3]
For instructions of outboard external shear pin
replacement, contact the Embraer Technical
Support Department
[3] If the part number is PN 190-15179-001, and the production order ID is different from the number 34857951, it must be replaced.
(d) [RC] Replace the internal shear pin of the fuse pins of the RH pylon lower link fitting inboard
and outboard in accordance with Figure 3.
(e) If applicable, install the support-blocks of the hydraulic tubes. Refer to AMM TASK
20-10-03-400-801-A/400 - Tubing - Installation.
(f) Install the RH pylon side and aft fairings. Refer to AMM TASK 54-50-22-400-801-A/400 -
Pylon Side Fairings - Installation and to AMM TASK 54-50-23-400-801-A/400  - Pylon Aft
Fairings - Installation.
(3) Put the aircraft back to a serviceable condition.
(4) Write the accomplishment of PART II of this bulletin in the applicable documents.
D. PART III – ADDITIONAL ACTION - INSPECTION OF THE LH AND RH OUTBOARD EXTERNAL
SHEAR PIN
(1) Applicable to GROUP 3
(a) Remove the LH and RH outboard pylon side fairings (skin 5 assembly). Refer to AMM
TASK 54-50-22-000-801-A/400 - Pylon Side Fairings - Removal.
(b) Do the inspection on the identifications written on the LH and RH outboard external shear
pins to make sure that they are according to the engineering drawings. Refer to Figure 4.
Outboard External Shear Pin Inspection
OUTBOARD
EXTERNAL
SHEAR PIN
PRODUCTION
ORDER ID DISPOSITION
PN
190-15179-003 Any No further action required [1]
PN
190-15179-001 = 34857951 No further action required [2]
PN
190-15179-001 ≠ 34857951
Replace the outboard external shear pin with a
new one PN 190-15179-003 [3]
For instructions of outboard external shear pin
replacement, contact the Embraer Technical
Support Department
[1] If the part number is PN 190-15179-003, it means that the external shear pin is identified with correct PN and it was manufactured accord-
ing to the engineering drawings.
[2] If the part number is PN 190-15179-001, and the production order ID is the number 34857951, it means that the external shear pin is
identified with wrong PN, but it was manufactured according to the engineering drawings.
[3] If the part number is PN 190-15179-001, and the production order ID is different from the number 34857951, it must be replaced.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 21 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 24

(c) Install the LH and RH outboard pylon side fairings (skin 5 assembly). Refer to AMM TASK
54-50-22-400-801-A/400 - Pylon Side Fairings - Installation.
(d) Put the aircraft back to a serviceable condition.
(e) Write the accomplishment of PART III of this bulletin in the applicable documents.
NOTE: 1) Please inform us by e-mail fleet.reliability@embraer.com.br the aircraft
manufacturer serial number and the SB incorporation date, specifying the SB
Part(s) incorporated or if the whole SB was incorporated. This will allow
Embraer to consider your aircraft configuration when providing future
modifications.
2) To formally inform that the SB was incorporated fleet-wide or that the SB will
not be incorporated, use the “Service Bulletin Full-Fleet Incorporation Report”
form, which is available on the Flyembraer portal ( http://
www.flyembraer.com) so that Embraer can update the affected technical
publications.
3) Use the “Service Bulletin Evaluation” form annexed to send us your
comments about this SB. Your feedback will be much appreciated since it
will be an aid for us to improve the SBs quality.
SERVICE BULLETIN
SB 190-54-0016
Page 22 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 25

FIGURE 1 - PYLON LIFTING TOOLING
(Sheet 1 of 9)
1. Put the aft parts of the pylon lifting tooling in position on the LH/RH pylon to support it as follows:
NOTE: There is no controlled torque for the pylon lifting tooling parts assembly.
(a) Connect the pylon aft device PN 170T06490-401 to the main hydraulic jack PN MAT05MV.
01857. Refer to Detail C1.
(b) Install the auxiliary hydraulic jack PN CLD1SA-V.02289 to the pylon aft device PN
170T06490-401. Refer to Detail C1.
(c) Install the aft device support PN 190T06489-401 (02 position) to the existing attaching holes of
the inboard/outboard sides of the LH/RH pylon with the attaching pins (04 positions). Refer to
Details C1, D, E and Section F-F.
(d) Put the pylon aft device PN 170T06490-401 with the main hydraulic jack PN MAT05MV.01857
and auxiliary hydraulic jack PN CLD1SA-V.02289 under the LH/RH pylon. Refer to Details B
(Front View), C1 and D.
(e) Apply pressure to the main hydraulic jack to lift the tooling until you get enough height to attach
the framework assy to the aft device support PN 190T06489-401. Refer to Details B (Front View),
C1 and D.
(f) Adjust the angular position of the pylon aft device PN 170T06490-401 in relation to the LH/RH
pylon to get the correct alignment between the parts by adjusting the angulator assy. Refer to
Detail D.
(g) Attach the framework assy (02 positions) to the aft device support PN 190T06489-401 (02
positions) installed to the inboard/outboard sides of the LH/RH pylon with the existing fasteners
(04 positions). Refer to Details C1 and D.
(h) Tighten the angulator assy in the current LH/RH pylon angular position by turning the existing
fasteners. Refer to Detail D.
NOTE: This step should be done to prevent that the LH/RH pylon lose its original angular
position and consequently may make it difficult to remove/install the fuse pins.
2. Put the forward parts of the pylon lifting tooling in position on the LH/RH pylon to support it as follows:
(a) Connect the pylon forward device PN 170T06491-401 to the main hydraulic jack PN MAT05MV.
01857. Refer to Detail C2.
(b) Put the pylon forward device PN 170T06491-401 with the main hydraulic jack PN MAT05MV.
01857 under the LH/RH pylon engine yoke. Refer to Details B (Front View) and C2.
(c) Apply pressure to the main hydraulic jack to lift the tooling until the yoke holder touches the
LH/RH pylon engine yoke. Refer to Details B (Front View) and C2.
3. Apply sufficient pressure to the main and auxiliary hydraulic jacks to support the LH/RH pylon as
follows:
(a) At the same time, apply sufficient pressure to the main hydraulic jack PN MAT05MV.01857 (02
positions) to make sure that the LH/RH pylon is correctly supported. Refer to Detail B (Front
View).
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 23 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 26

FIGURE 1 - PYLON LIFTING TOOLING
(Sheet 2 of 9)
NOTE: Do not apply excessive pressure to main hydraulic jack PN MAT05MV.01857. Excessive
pressure against the LH/RH pylon may make it difficult to remove/install the fuse pins.
(b) Apply enough pressure to the auxiliary hydraulic jack PN CLD1SA-V.02289 to make sure that the
LH/RH pylon is correctly supported. Refer to Detail B (Front View).
NOTE: Do not apply excessive pressure to auxiliary hydraulic jack PN CLD1SA-V.02289 .
Excessive pressure against the LH/RH pylon may make it difficult to remove/install the
fuse pins.
(c) After the lifting tooling is installed, make sure that the LH/RH pylon and LH/RH wing attaching
points are correctly aligned as follows:
1 Unlock the castellated nut PN PE22072L14 (02 positions) of the fuse pins installed on the
inboard/outboard lower link fitting.
NOTE: Do not remove the fuse pins.
2 Examine the alignment of the fuse pins PN 190-15183-40X (01 position inboard) and PN
190-15180-40X (01 position outboard) installed on the inboard/outboard lower link fitting to
make sure that the LH/RH pylon is correctly aligned with the LH/RH wing.
a To examine the alignment of the fuse pins use a proper wrench on the fuse pin’s head
and make sure that it is turning smoothly.
b In case of misalignment of the fuse pin(s), adjust the pressure of the main hydraulic
jack PN MAT05MV.01857 (2 positions) and auxiliary hydraulic jack PN CLD1SA-V.
02289 (1 position) as applicable and repeat the check described in 3.(c)2 Figure 1 .
4. Remove the aft and forward parts of the pylon lifting tooling from the LH/RH pylon as follows:
NOTE: 1) The steps below must be done only after you make sure that all the steps of Figure 2 are
accomplished.
(a) Remove the existing fasteners (04 positions) that attach the framework assy (02 positions) to the
aft device support PN 190T06489-401 (02 positions) installed to the inboard/outboard sides of
the LH/RH pylon. Refer to Details C1 and D.
(b) Lower the pylon aft device PN 170T06490-401 by releasing the existing pressure from the
hydraulic system of the respective main hydraulic jack PN MAT05MV.01857 and auxiliary
hydraulic jack PN CLD1SA-V.02289 until you get enough height to remove the parts from the
work area in a safe condition. Refer to Detail B (Front View).
(c) Lower the pylon forward device PN 170T06491-401 by releasing the existing pressure from the
hydraulic system of the respective main hydraulic jack PN MAT05MV.01857 until you get enough
height to remove the parts from the work area in a safe condition. Refer to Detail B (Front View).
(d) Remove the auxiliary hydraulic jack PN CLD1SA-V.02289 from the pylon aft device PN
170T06490-401. Refer to Detail C1.
(e) Disconnect the pylon aft device PN 170T06490-401 from the main hydraulic jack PN MAT05MV.
01857. Refer to Detail C1.
SERVICE BULLETIN
SB 190-54-0016
Page 24 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 27

FIGURE 1 - PYLON LIFTING TOOLING
(Sheet 3 of 9)
(f) Disconnect the pylon forward device PN 170T06491-401 from the main hydraulic jack PN
MAT05MV.01857. Refer to Detail C1.
(g) Remove the aft device support PN 190T06489-401 (02 position) from the inboard/outboard sides
of the LH/RH pylon by removing the attaching pins (4 positions). Refer to Details C1, D and
Section F-F.
(h) Clean all the parts of the pylon lifting tooling and keep them proper stored.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 25 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 28

FIGURE 1 - PYLON LIFTING TOOLING
(Sheet 4 of 9)
ZONES
419
429
A
LH/RH PYLON
(REF.)
LH/RH ENGINE YOKE
(REF.)
PYLON FORWARD DEVICE
PN 170T06491−401
(REF.)
MAIN HYDRAULIC JACK
PN MAT05MV.01857
(REF.)
MAIN HYDRAULIC JACK
PN MAT05MV.01857
(REF.)
PYLON AFT DEVICE
PN 170T06490−401
(REF.)
C
B
A
AUXILIARY HYDRAULIC JACK
PN CLD1SA−V.02289
(REF.)
EM170SB540391A.DGN
SERVICE BULLETIN
SB 190-54-0016
Page 26 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
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### Page 29

FIGURE 1 - PYLON LIFTING TOOLING
(Sheet 5 of 9)
C
(TOP VIEW)
MAIN HYDRAULIC JACK
PN MAT05MV.01857
(REF.)
MAIN HYDRAULIC JACK
PN MAT05MV.01857
(REF.)
PYLON AFT DEVICE
PN 170T06490−401
(REF.)
LH/RH PYLON
(REF.)
PYLON FORWARD DEVICE
PN 170T06491−401
(REF.)
AUXILIARY HYDRAULIC
JACK
PN CLD1SA−V.02289
(REF.)
G
E
B
(FRONT VIEW)
D
C 1 C 2
F
F
EM170SB540392A.DGN
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 27 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 30

FIGURE 1 - PYLON LIFTING TOOLING
(Sheet 6 of 9)
PYLON AFT DEVICE
PN 170T06490−401
(REF.)
MAIN HYDRAULIC JACK
PN MAT05MV.01857
(REF.)
LH/RH PYLON
(REF.)
AUXILIARY 
HYDRAULIC JACK
PN CLD1SA−V.02289
(REF.)
FASTENER
(REF.)
FASTENER
(REF.)
FASTENER
(REF.) AFT DEVICE SUPPORT
PN 190T06489−401
(REF.)
AFT DEVICE SUPPORT
PN 190T06489−401
(REF.)
C1
ATTACHING PINS
(REF.)
ATTACHING PINS
(REF.)
FRAMEWORK ASSY
(REF.)
TOP PART OF
FRAMEWORK
ASSY
(REF.)
TOP PART OF
FRAMEWORK
ASSY
(REF.)
EM170SB540393A.DGN
SERVICE BULLETIN
SB 190-54-0016
Page 28 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 31

FIGURE 1 - PYLON LIFTING TOOLING
(Sheet 7 of 9)
LH/RH ENGINE YOKE
(REF.)
LH/RH PYLON
(REF.)
PYLON FORWARD DEVICE
PN 170T06491−401
(REF.)
C2
MAIN HYDRAULIC JACK
PN MAT05MV.01857
(REF.)
EM170SB540394A.DGN
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 29 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 32

FIGURE 1 - PYLON LIFTING TOOLING
(Sheet 8 of 9)
D
E
AFT DEVICE SUPPORT
PN 190T06489−401
(REF.) AFT DEVICE SUPPORTPN 190T06489−401
(REF.)
FASTENERS
(REF.)
HANDLE
CRANK
(REF.)
ANGULATOR ASSY
(REF.)
FRAMEWORK ASSY
(REF.)
FRAMEWORK ASSY
(REF.)
FASTENERS
(REF.)
ATTACHING
HOLES
(REF.)
LH/RH
PYLON
(REF.)
FASTENER
(REF.) FASTENER
(REF.)
ATTACHING 
POINTS
(REF.)
EM170SB540395A.DGN
SERVICE BULLETIN
SB 190-54-0016
Page 30 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 33

FIGURE 1 - PYLON LIFTING TOOLING
(Sheet 9 of 9)
ATTACHING PINS
(REF.)
F−F
PYLON FORWARD DEVICE
PN 170T06491−401
(REF.)
MAIN HYDRAULIC JACK
PN MAT05MV.01857
(REF.)
YOKE HOLDER
(REF.)
G
PYLON AFT DEVICE
PN 170T06490−401
(REF.)
EM170SB540396A.DGN
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 31 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 34

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 1 of 12)
NOTE: 1) Applicable to GROUP 1.
2) It is recommended to use the pylon lifting tooling (Figure 1) to support the LH/RH pylon, before
you do the modifications on the attaching parts of the LH/RH pylon lower link fitting inboard or
outboard. This is to prevent the misalignment of the attaching points of the LH/RH pylon lower
link fitting inboard or outboard, after you remove the fuse pin from the assembly.
3) Modify the attaching parts of one of the lower link fitting inboard or outboard first. Only start
the modification of the second lower link fitting, after you complete all the modifications of the
first one.
1. [RC Exempt] Remove the attaching parts of the LH/RH pylon lower link fitting inboard, as follows:
(a) Remove the attaching parts of the LH/RH pylon lower link fitting inboard. Refer to Detail B (Pre-
Mod).
1 Remove and discard cotter pin PN MS24665-376 (01 position), washer PN
NAS1149C1490R (as applicable), and plain bushing PN 190-33685-021 (01 position).
2 Remove and keep fuse pin PN 190-15183-40X (01 position) and castellated nut PN
PE22072L14 (01 position).
(b) Remove the internal shear pin of the fuse pin PN 190-15183-40X of the LH/RH pylon lower link
fitting inboard. Refer to Detail C (Pre-Mod).
1 Remove and discard internal shear pin PN 190-15181-005 (01 position) from the external
shear pin PN 190-15182-003 (01 position) as follows:
a Remove and discard cotter pin PN MS24665-372 (01 position).
b Remove and keep castellated nut PN MS14145L8 (01 position) and washer PN
170-16196-001 (01 position).
1) Safety the internal and external shear pins, through their cotter pin holes, with a
proper tooling to prevent them from turning when you remove the castellated
nut PN MS14145L8, that attaches the internal shear pin on the external shear
pin.
NOTE: An example of tooling that you can use to safety the internal and
external shear pins is a commercially available pin punch set.
2. Install the attaching parts of the LH/RH pylon lower link fitting inboard. Refer to Details B (Post-Mod)
and E (Typical Post-Mod, LH side) or F (Typical Post-Mod, RH side).
(a) Install the attaching parts of the LH/RH pylon lower link fitting inboard as follows:
NOTE: If required, other washer and castellated nut can be installed as an alternative to the
washer PN NAS1149C1432R and castellated nut PN PE22072L14 respectively. The
other part number must be listed as optional item or substitute (I/W - Interchangeable
With) of the part number listed in this bulletin, in accordance with the AIPC 54-50-00 -
PYLON.
1 The new plain bushing PN 190-33685-023 (01 position).
SERVICE BULLETIN
SB 190-54-0016
Page 32 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 35

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 2 of 12)
2 The external shear pin PN 190-15182-003 (01 position).
3 The new washer PN NAS1149C1432R (as required).
NOTE: Install washer PN NAS1149C1432R according to the need of cotter pin installation.
4 The castellated nut PN PE22072L14 (01 position).
5 The new lock washer PN 191-28264-401 (01 position).
 
(b) Apply torque to the castellated nut PN PE22072L14 as follows. Refer to AMM TASK
20-10-01-910-801-A/200 - Bolt Torque Data - Maintenance Practices.
NOTE: Make sure that the fuse pin does not turn when you apply the torque. If necessary,
safety the other side of the fuse pin with a proper wrench to do not let it to turn.
1 Turn the castellated nut PN PE22072L14 and measure the drag torque.
2 Make sure that the drag torque is between 7.91 - 67.79 N.m (70 - 600 lb.in).
NOTE: If the castellated nut PN PE22072L14 is not in the correct range, replace it with
new one (same PN).
3 Add the drag torque value measured in 2.(b)1 Figure 2  to the standard torque of 50.8 to
73.4 N.m (450 to 650 lb.in) to get the final torque.
4 Apply the final torque to the castellated nut PN PE22072L14.
 
(c) Install the new internal shear pin PN 191-32677-001 (01 position) to the external shear pin PN
190-15182-003 (01 position) of the LH/RH pylon lower link fitting inboard. Refer to Detail G (Post-
Mod).
NOTE: This step shall be done only after you make sure that the final torque to the castellated
nut PN PE22072L14 was applied.
1 Apply Corrosion Inhibiting Compound (MEP_09-075) COR-BAN 27L, or equivalent in
accordance with MEP 09-075, on the new internal shear pin PN 191-32677-001 (01
position).
NOTE: Make sure that the protruding threaded end of the internal shear pin is completely
wet with Corrosion Inhibiting Compound (MEP_09-075) COR-BAN 27L.
2 Install the new internal shear pin PN 191-32677-001 (01 position).
3 Install the washer PN 170-16196-001 (01 position) and castellated nut PN MS14145L8 (01
position).
NOTE: If required, other castellated nut can be installed as an alternative to the
castellated nut PN MS14145L8. The other part number must be listed as optional
item or substitute (I/W - Interchangeable With) of the part number listed in this
bulletin, in accordance with the AIPC 54-50-00 - PYLON.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 33 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 36

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 3 of 12)
a To install the washer PN 170-16196-001 (01 position) and castellated nut PN
MS14145L8 (01 position) do as follows:
1) Safety the internal and external shear pins, through their cotter pin holes, with a
proper tooling to prevent them from turning when you install the castellated nut
PN MS14145L8, that attaches the internal shear pin on the external shear pin.
NOTE: An example of tooling that you can use to safety the internal and
external shear pins is a commercially available pin punch set.
2) Apply sufficient torque to the assembly to make sure that it is correctly locked
and make sure that the castellated nut is aligned for cotter pin installation. There
is no specified torque for this assembly.
a) Make sure that washer PN 170-16196-001 is completely locked after you
tighten the assembly.
– If it is moving, apply the torque to the assembly again (  2.(c)3 a2)
Figure 2).
(d) Install a new cotter pin PN MS24665-372 (01 position).
NOTE: If required, other cotter pin can be installed as an alternative to the cotter pin PN
MS24665-372. The other part number must be listed as optional item or substitute (I/W -
Interchangeable With) of the part number listed in this bulletin, in accordance with the
AIPC 54-50-00 - PYLON.
 
(e) Install a new cotter pin PN MS24665-376 (01 position).
NOTE: If required, other cotter pin can be installed as an alternative to the cotter pin PN
MS24665-376. The other part number must be listed as optional item or substitute (I/W -
Interchangeable With) of the part number listed in this bulletin, in accordance with the
AIPC 54-50-00 - PYLON.
(f) Install the new L-profile PN 191-28265-001 (01 position) on the new lock washer PN
191-28264-401 (01 position) with the new screw PN NAS1802-04-5 (02 positions).
NOTE: If required, other screw can be installed as an alternative to the screw PN
NAS1802-04-5. The other part number must be listed as optional item or substitute (I/W
- Interchangeable With) of the part number listed in this bulletin, in accordance with the
AIPC 54-50-00 - PYLON.
3. [RC Exempt] Apply a drop of Yellow Torque Seal (MEP 09-068) F-925 on the threaded end of the
inboard fuse pin. Refer to Detail B (Post-Mod).
4. [RC Exempt] Apply a coat of Corrosion Inhibiting Compound, Type III (MEP 10-063) ARDROX AV-15
on the pylon inboard area. Refer to Detail B (Post-Mod).
 
5. [RC Exempt] Remove the attaching parts of the LH/RH pylon lower link fitting outboard, as follows:
 
SERVICE BULLETIN
SB 190-54-0016
Page 34 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 37

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 4 of 12)
(a) Remove the attaching parts of the LH/RH pylon lower link fitting outboard. Refer to Detail B (Pre-
Mod).
1 Remove and discard cotter pin PN MS24665-376 (01 position), washer PN
NAS1149C1490R (as applicable), and plain bushing PN 190-33686-021 (02 positions).
2 Remove and keep fuse pin PN 190-15180-40X (01 position) and castellated nut PN
PE22072L14 (01 position).
(b) Remove the internal shear pin of the fuse pin PN 190-15180-40X of the LH/RH pylon lower link
fitting outboard. Refer to Detail D (Pre-Mod).
1 Remove and discard internal shear pin PN 190-15178-005 (01 position) from the external
shear pin PN 190-15179-003 (01 position) as follows:
a Remove and discard cotter pin PN MS24665-372 (01 position).
b Remove and keep castellated nut PN MS14145L8 (01 position) and washer PN
170-16196-001 (01 position).
1) Safety the internal and external shear pins, through their cotter pin holes, with a
proper tooling to prevent them from turning when you remove the castellated
nut PN MS14145L8, that attaches the internal shear pin on the external shear
pin.
NOTE: An example of tooling that you can use to safety the internal and
external shear pins is a commercially available pin punch set.
6. Install the attaching parts of the LH/RH pylon lower link fitting outboard. Refer to Details B (Post-Mod)
and E (Typical Post-Mod, LH side) or F (Typical Post-Mod, RH side).
(a) Install the attaching parts of the LH/RH pylon lower link fitting outboard as follows:
NOTE: If required, other washer and castellated nut can be installed as an alternative to the
washer PN NAS1149C1432R and castellated nut PN PE22072L14 respectively. The
other part number must be listed as optional item or substitute (I/W - Interchangeable
With) of the part number listed in this bulletin, in accordance with the AIPC 54-50-00 -
PYLON.
1 The new plain bushing PN 190-33686-023 (02 positions).
2 The external shear pin PN 190-15179-003 (01 position).
3 The new washer PN NAS1149C1432R (as required).
NOTE: Install washer PN NAS1149C1432R according to the need of cotter pin installation.
4 The castellated nut PN PE22072L14 (01 position).
5 The new lock washer PN 191-28263-401 (01 position LH side) or PN 191-28263-402 (01
position RH side) as applicable.
 
(b) Apply torque to the castellated nut PN PE22072L14 as follows. Refer to AMM TASK
20-10-01-910-801-A/200 - Bolt Torque Data - Maintenance Practices.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 35 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 38

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 5 of 12)
NOTE: Make sure that the fuse pin does not turn when you apply the torque. If necessary,
safety the other side of the fuse pin with a proper wrench to do not let it to turn.
1 Turn the castellated nut PN PE22072L14 and measure the drag torque.
2 Make sure that the drag torque is between 7.91 - 67.79 N.m (70 - 600 lb.in).
NOTE: If the castellated nut PN PE22072L14 is not in the correct range, replace it with
new one (same PN).
3 Add the drag torque value measured in 6.(b)1 Figure 2  to the standard torque of 50.8 to
73.4 N.m (450 to 650 lb.in) to get the final torque.
4 Apply the final torque to the castellated nut PN PE22072L14.
 
(c) Install the new internal shear pin PN 191-32676-001 (01 position) to the external shear pin PN
190-15179-003 (01 position) of the LH/RH pylon lower link fitting outboard. Refer to Detail H
(Post-Mod).
NOTE: This step shall be done only after you make sure that the final torque to the castellated
nut PN PE22072L14 was applied.
1 Apply Corrosion Inhibiting Compound (MEP_09-075) COR-BAN 27L, or equivalent in
accordance with MEP 09-075, on the new internal shear pin PN 191-32676-001 (01
position).
NOTE: Make sure that the protruding threaded end of the internal shear pin is completely
wet with Corrosion Inhibiting Compound (MEP_09-075) COR-BAN 27L.
2 Install the new internal shear pin PN 191-32676-001 (01 position).
3 Install the washer PN 170-16196-001 (01 position) and castellated nut PN MS14145L8 (01
position).
NOTE: If required, other castellated nut can be installed as an alternative to the
castellated nut PN MS14145L8. The other part number must be listed as optional
item or substitute (I/W - Interchangeable With) of the part number listed in this
bulletin, in accordance with the AIPC 54-50-00 - PYLON.
4 To install the washer PN 170-16196-001 (01 position) and castellated nut PN MS14145L8
(01 position) do as follows:
a Safety the internal and external shear pins, through their cotter pin holes, with a
proper tooling to prevent them from turning when you install the castellated nut PN
MS14145L8, that attaches the internal shear pin on the external shear pin.
NOTE: An example of tooling that you can use to safety the internal and external
shear pins is a commercially available pin punch set.
b Apply sufficient torque to the assembly to make sure that it is correctly locked and
make sure that the castellated nut is aligned for cotter pin installation. There is no
specified torque for this assembly.
SERVICE BULLETIN
SB 190-54-0016
Page 36 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 39

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 6 of 12)
1) Make sure that washer PN 170-16196-001 is completely locked after you
tighten the assembly.
– If it is moving, apply the torque to the assembly again ( 6.(c)4 b Figure 2).
(d) Install a new cotter pin PN MS24665-372 (01 position).
NOTE: If required, other cotter pin can be installed as an alternative to the cotter pin PN
MS24665-372. The other part number must be listed as optional item or substitute (I/W -
Interchangeable With) of the part number listed in this bulletin, in accordance with the
AIPC 54-50-00 - PYLON.
 
(e) Install a new cotter pin PN MS24665-376 (01 position).
NOTE: If required, other cotter pin can be installed as an alternative to the cotter pin PN
MS24665-376. The other part number must be listed as optional item or substitute (I/W -
Interchangeable With) of the part number listed in this bulletin, in accordance with the
AIPC 54-50-00 - PYLON.
(f) Install the new L-profile PN 191-28265-001 (01 position for LH side) or PN 191-28265-002 (01
position for RH side) on the new lock washer PN 191-28263-401 (01 position for LH side) or PN
191-28263-402 (01 position for RH side) with the new screw PN NAS1802-04-5 (02 positions).
NOTE: If required, other screw can be installed as an alternative to the screw PN
NAS1802-04-5. The other part number must be listed as optional item or substitute (I/W
- Interchangeable With) of the part number listed in this bulletin, in accordance with the
AIPC 54-50-00 - PYLON.
7. [RC Exempt] Apply a drop of Yellow Torque Seal (MEP 09-068) F-925 on the threaded end of the
outboard fuse pin. Refer to Detail B (Post-Mod).
8. [RC Exempt] Apply a coat of Corrosion Inhibiting Compound, Type III (MEP 10-063) ARDROX AV-15
on the pylon outboard area. Refer to Detail B (Post-Mod).
 
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 37 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 40

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 7 of 12)
EM170SB540380B.DGN
A
ZONES
419
429
B
LH PYLON
(REF.)
INBOARD PYLON FAIRING
OUTBOARD PYLON FAIRING
(REF.)
LEFT SIDE SHOWN
RIGHT SIDE OPPOSITE
A
SERVICE BULLETIN
SB 190-54-0016
Page 38 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 41

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 8 of 12)
EM170SB540386B.DGN
WASHER
PN NAS1149C1490R
(REMOVE AND DISCARD)
PLAIN BUSHING
PN 190−33686−021
(REMOVE AND DISCARD)
COTTER PIN
PN MS24665−376
(REMOVE AND DISCARD)
FUSE PIN
PN 190−15180−40X (OUTBOARD)
(REMOVE AND KEEP)
PLAIN BUSHING
PN 190−33685−021
(REMOVE AND DISCARD)
FUSE PIN
PN 190−15183−40X (INBOARD)
(REMOVE AND KEEP)
INBOARD SIDE
(REF.)
COTTER PIN
PN MS24665−376
(REMOVE AND DISCARD)
OUTBOARD SIDE
(REF.)
PRE − MOD
B
1
1
1
1
1
5
5
5
5
5
WASHER
PN NAS1149C1490R
(REMOVE AND 
DISCARD)
LEFT SIDE SHOWN
RIGHT SIDE OPPOSITE
1
D
C
APPLICABLE TO AIRCRAFT OF GROUP 1.
1
CASTELLATED NUT
PN PE22072L14
(REMOVE AND KEEP)
CASTELLATED NUT
PN PE22072L14
(REMOVE AND KEEP)
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 39 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 42

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 9 of 12)
1
1
C
D
INTERNAL SHEAR PIN
PN 190−15181−005 (INBOARD)
(REMOVE AND DISCARD)
INTERNAL SHEAR PIN
PN 190−15178−005 (OUTBOARD)
(REMOVE AND DISCARD)
COTTER PIN
PN MS24665−372
(REMOVE AND DISCARD)COTTER PIN
PN MS24665−372
(REMOVE AND DISCARD)
WASHER
PN 170−16196−001
(REMOVE AND KEEP)
WASHER
PN 170−16196−001
(REMOVE AND KEEP)
1
1
1
5
5
5
5
PRE − MOD
PRE − MOD
APPLICABLE TO AIRCRAFT OF GROUP 1.
1
1
EM170SB540378B.DGN
EXTERNAL SHEAR PIN
PN 190−15179−003 (OUTBOARD)
(REF.)
EXTERNAL SHEAR PIN
PN 190−15182−003 (INBOARD)
(REF.)
CASTELLATED NUT
PN MS14145L8
(REMOVE AND KEEP)
CASTELLATED NUT
PN MS14145L8
(REMOVE AND KEEP)
SERVICE BULLETIN
SB 190-54-0016
Page 40 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 43

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 10 of 12)
EM170SB540387C.DGN
E F
2
3 5
2
2
3 5
4 5
4 5
COTTER PIN
PN MS24665−376
(INSTALL)
WASHER
PN NAS1149C1432R
(INSTALL)
PLAIN BUSHING
PN 190−33685−023
(INSTALL)
PLAIN BUSHING
PN 190−33686−023
(INSTALL)
WASHER
PN NAS1149C1432R
(INSTALL)
F E
3
4
5 APPLY CORROSION INHIBITING COMPOUND (MEP_10−063) ARDROX AV−15.
POST − MOD
B
OUTBOARD SIDE
(REF.)
INBOARD SIDE
(REF.)
INSTALL WASHER PN NAS1149C1432R ACCORDING TO THE NEED OF COTTER PIN INSTALLATION.
6
6
6
6
6
COTTER PIN
PN MS24665−376
(INSTALL)
APPLY TORQUE OF 50.8 TO 73.4 N.m (450 TO 650 lb.in) PLUS DRAG TORQUE OF 7.91 − 67.79 N.m (70−600 lb.in).
LEFT SIDE SHOWN
RIGHT SIDE OPPOSITE
G
H
1 APPLICABLE TO AIRCRAFT OF GROUP 1.
1
CASTELLATED NUT
PN PE22072L14
(INSTALL)
CASTELLATED NUT
PN PE22072L14
(INSTALL)
EXTERNAL SHEAR PIN
PN 190−15182−003 (INBOARD)
(INSTALL)
EXTERNAL SHEAR PIN
PN 190−15179−003 (OUTBOARD)
(INSTALL)
APPLY A DROP OF TORQUE SEAL F−925 ON THE THREADED END OF THE FUSE PIN.
2
2
2
2
2
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 41 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 44

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 11 of 12)
EM170SB540325D.DGN
E
LOCK WASHER
PN 191−28264−401 (INBOARD)
PN 191−28263−401 (OUTBOARD)
(INSTALL)
SCREW
PN NAS1802−04−5
(INSTALL)
F
LOCK WASHER
PN 191−28264−401 (INBOARD)
PN 191−28263−402 (OUTBOARD)
(INSTALL)
SCREW
PN NAS1802−04−5
(INSTALL)
6
6
6
6
6
6
L PROFILE
PN 191−28265−001 
(INBOARD/OUTBOARD)
(INSTALL)
L PROFILE
PN 191−28265−001 (INBOARD)
PN 191−28265−002 (OUTBOARD)
(INSTALL)
TYPICAL
POST − MOD
(LH PYLON)
TYPICAL
POST − MOD
(RH PYLON)
1 APPLICABLE TO AIRCRAFT OF GROUP 1.
1
1
2
2
2
2
2
2
SERVICE BULLETIN
SB 190-54-0016
Page 42 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 45

FIGURE 2 - PYLON LOWER LINK FITTING - ATTACHING PARTS MODIFICATION
(Sheet 12 of 12)
2
7
G
H
2
2
2
6
6
6
6
INTERNAL SHEAR PIN
PN 191−32677−001 (INBOARD)
(INSTALL)
INTERNAL SHEAR PIN
PN 191−32676−001 (OUTBOARD)
(INSTALL)
6
7
7
WASHER
PN 170−16196−001
(INSTALL)
WASHER
PN 170−16196−001
(INSTALL)
COTTER PIN
PN MS24665−372
(INSTALL)
COTTER PIN
PN MS24665−372
(INSTALL)
POST − MOD
POST − MOD
1
6
6
APPLICABLE TO AIRCRAFT OF GROUP 1.
EM170SB540379B.DGN
1
1
EXTERNAL SHEAR PIN
PN 190−15182−003 (INBOARD)
(REF.)
EXTERNAL SHEAR PIN
PN 190−15179−003 (OUTBOARD)
(REF.)
WET INSTALL INTERNAL SHEAR PIN AND MAKE SURE THAT THE PROTRUDING THREADED END OF INTERNAL 
SHEAR PIN  IS COMPLETELY WET WITH CORROSION INHIBITING COMPOUND PN COR−BAN 27L.
8
8
8
CASTELLATED NUT
PN MS14145L8
(INSTALL)
CASTELLATED NUT
PN MS14145L8
(INSTALL)
APPLY SUFFICIENT TORQUE TO THE ASSEMBLY TO MAKE SURE THAT IT IS CORRECTLY LOCKED AND 
MAKE SURE THAT THE CASTELLATED NUT IS ALIGNED FOR COTTER PIN INSTALLATION.
MAKE SURE THAT THE WASHER PN 170−16196−001 IS COMPLETELY LOCKED AFTER YOU TIGHTEN THE ASSEMBLY. 
IF IT IS NOT LOCKED, APPLY TORQUE TO THE ASSEMBLY AGAIN.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 43 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 46

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 1 of 12)
NOTE: 1) Applicable to GROUP 2.
2) It is not necessary to use the pylon lifting tooling to do the steps below.
3) Modify the attaching parts of one of the lower link fitting inboard or outboard first. Only start
the modification of the second lower link fitting, after you complete all the modifications of the
first one.
1. [RC Exempt] Release the attaching parts of the LH/RH pylon lower link fitting inboard as follows:
(a) Release the fuse pin PN 190-15183-40X by removing the attaching parts of the LH/RH pylon
lower link fitting inboard. Refer to Details B (Pre-Mod)  and C1 (Typical)  or D1 (Typical) , as
applicable.
NOTE: It is not necessary to remove the external shear pin of the fuse pin, plain bushing and
lock washer from their places in the assembly.
1 Remove and discard cotter pin PN MS24665-376 (01 position).
2 Remove and keep castellated nut PN PE22072L14 (01 position), washer PN
NAS1149C1432R (as applicable), L-profile PN 191-28265-001 (01 position) and screw PN
NAS1802-04-5 (02 positions).
(b) Remove the internal shear pin of the fuse pin PN 190-15183-40X of the LH/RH pylon lower link
fitting inboard. Refer to Detail C (Pre-Mod).
1 Remove and discard internal shear pin PN 190-15181-005 (01 position) from the external
shear pin PN 190-15182-003 (01 position) as follows:
NOTE: Keep the external shear pin of the fuse pin installed in its position during the
accomplishment of this bulletin.
a Remove and discard cotter pin PN MS24665-372 (01 position).
b Remove and keep castellated nut PN MS14145L8 (01 position) and washer PN
170-16196-001 (01 position).
1) Safety the internal and external shear pins, through their cotter pin holes, with a
proper tooling to prevent them from turning when you remove the castellated
nut PN MS14145L8, that attaches the internal shear pin on the external shear
pin.
NOTE: An example of tooling that you can use to safety the internal and
external shear pins is a commercially available pin punch set.
2. Install the attaching parts of the LH/RH pylon lower link fitting inboard. Refer to Detail B (Post-Mod).
(a) Install the attaching parts of the LH/RH pylon lower link fitting inboard as follows:
NOTE: If required, other washer and castellated nut can be installed as an alternative to the
washer PN NAS1149C1432R and castellated nut PN PE22072L14 respectively. The
other part number must be listed as optional item or substitute (I/W - Interchangeable
With) of the part number listed in this bulletin, in accordance with the AIPC 54-50-00 -
PYLON.
SERVICE BULLETIN
SB 190-54-0016
Page 44 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 47

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 2 of 12)
1 The external shear pin PN 190-15182-003 (01 position).
2 The washer PN NAS1149C1432R (as required).
NOTE: Install washer PN NAS1149C1432R according to the need of cotter pin installation.
3 The castellated nut PN PE22072L14 (01 position).
 
(b) Apply torque to the castellated nut PN PE22072L14 as follows. Refer to AMM TASK
20-10-01-910-801-A/200 - Bolt Torque Data - Maintenance Practices.
NOTE: Make sure that the fuse pin does not turn when you apply the torque. If necessary,
safety the other side of the fuse pin with a proper wrench to do not let it to turn.
1 Turn the castellated nut PN PE22072L14 and measure the drag torque.
2 Make sure that the drag torque is between 7.91 - 67.79 N.m (70 - 600 lb.in).
NOTE: If the castellated nut PN PE22072L14 is not in the correct range, replace it with
new one (same PN).
3 Add the drag torque value measured in 2.(b)1 Figure 3  to the standard torque of 50.8 to
73.4 N.m (450 to 650 lb.in) to get the final torque.
4 Apply the final torque to the castellated nut PN PE22072L14.
 
(c) Install the new internal shear pin PN 191-32677-001 (01 position) to the external shear pin PN
190-15182-003 (01 position) of the LH/RH pylon lower link fitting inboard. Refer to Detail E (Post-
Mod).
NOTE: This step shall be done only after you make sure that the final torque to the castellated
nut PN PE22072L14 was applied.
1 Apply Corrosion Inhibiting Compound (MEP_09-075) COR-BAN 27L on the new internal
shear pin PN 191-32677-001 (01 position).
NOTE: Make sure that the protruding threaded end of the internal shear pin is completely
wet with Corrosion Inhibiting Compound (MEP_09-075) COR-BAN 27L.
2 Install the new internal shear pin PN 191-32677-001 (01 position).
3 Install the washer PN 170-16196-001 (01 position) and castellated nut PN MS14145L8 (01
position).
NOTE: If required, other castellated nut can be installed as an alternative to the
castellated nut PN MS14145L8. The other part number must be listed as optional
item or substitute (I/W - Interchangeable With) of the part number listed in this
bulletin, in accordance with the AIPC 54-50-00 - PYLON.
4 To install the washer PN 170-16196-001 (01 position) and castellated nut PN MS14145L8
(01 position) do as follows:
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 45 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 48

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 3 of 12)
a Safety the internal and external shear pins, through their cotter pin holes, with a
proper tooling to prevent them from turning when you install the castellated nut PN
MS14145L8, that attaches the internal shear pin on the external shear pin.
NOTE: An example of tooling that you can use to safety the internal and external
shear pins is a commercially available pin punch set.
b Apply sufficient torque to the assembly to make sure that it is correctly locked and
make sure that the castellated nut is aligned for cotter pin installation. There is no
specified torque for this assembly.
1) Make sure that washer PN 170-16196-001 is completely locked after you
tighten the assembly.
– If it is moving, apply the torque to the assembly again ( 2.(c)4 b Figure 3).
5 Install a new cotter pin PN MS24665-372 (01 position).
NOTE: If required, other cotter pin can be installed as an alternative to the cotter pin PN
MS24665-372. The other part number must be listed as optional item or substitute
(I/W - Interchangeable With) of the part number listed in this bulletin, in accordance
with the AIPC 54-50-00 - PYLON.
(d) Install a new cotter pin PN MS24665-376 (01 position).
NOTE: If required, other cotter pin can be installed as an alternative to the cotter pin PN
MS24665-376. The other part number must be listed as optional item or substitute (I/W -
Interchangeable With) of the part number listed in this bulletin, in accordance with the
AIPC 54-50-00 - PYLON.
(e) Install the L-profile PN 191-28265-001 (01 position) on the lock washer PN 191-28264-401 (01
position) with the screw PN NAS1802-04-5 (02 positions).
NOTE: If required, other screw can be installed as an alternative to the screw PN
NAS1802-04-5. The other part number must be listed as optional item or substitute (I/W
- Interchangeable With) of the part number listed in this bulletin, in accordance with the
AIPC 54-50-00 - PYLON.
3. [RC Exempt] Apply a drop of Yellow Torque Seal (MEP 09-068) F-925 on the threaded end of the
inboard fuse pin. Refer to Detail B (Post-Mod).
4. [RC Exempt] Apply a coat of Corrosion Inhibiting Compound, Type III (MEP 10-063) ARDROX AV-15
on the pylon inboard area. Refer to Detail B (Post-Mod).
 
5. [RC Exempt] Release the attaching parts of the LH/RH pylon lower link fitting outboard as follows:
 
(a) Release the fuse pin PN 190-15180-40X by removing the attaching parts of the LH/RH pylon
lower link fitting outboard. Refer to Details B (Pre-Mod)  and C1 (Typical)  or D1 (Typical) , as
applicable.
NOTE: It is not necessary to remove the external shear pin of the fuse pin, plain bushing and
lock washer from their places in the assembly.
SERVICE BULLETIN
SB 190-54-0016
Page 46 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 49

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 4 of 12)
1 Remove and discard cotter pin PN MS24665-376 (01 position).
2 Remove and keep castellated nut PN PE22072L14 (01 position), washer PN
NAS1149C1432R (as applicable), L-profile PN 191-28265-001 (01 position for LH side) or
PN 191-28265-002 (01 position for RH side) and screw PN NAS1802-04-5 (02 positions).
(b) Remove the internal shear pin of the fuse pin PN 190-15180-40X of the LH/RH pylon lower link
fitting outboard. Refer to Detail D (Pre-Mod).
1 Remove and discard internal shear pin PN 190-15178-005 (01 position) from the external
shear pin PN 190-15179-003 (01 position) as follows:
NOTE: Keep the external shear pin of the fuse pin installed in its position during the
accomplishment of this bulletin.
a Remove and discard cotter pin PN MS24665-372 (01 position).
b Remove and keep castellated nut PN MS14145L8 (01 position) and washer PN
170-16196-001 (01 position).
1) Safety the internal and external shear pins, through their cotter pin holes, with a
proper tooling to prevent them from turning when you remove the castellated
nut PN MS14145L8, that attaches the internal shear pin on the external shear
pin.
NOTE: An example of tooling that you can use to safety the internal and
external shear pins is a commercially available pin punch set.
6. Install the attaching parts of the LH/RH pylon lower link fitting outboard. Refer to Detail B (Post-Mod).
(a) Install the attaching parts of the LH/RH pylon lower link fitting outboard as follows:
NOTE: If required, other washer and castellated nut can be installed as an alternative to the
washer PN NAS1149C1432R and castellated nut PN PE22072L14 respectively. The
other part number must be listed as optional item or substitute (I/W - Interchangeable
With) of the part number listed in this bulletin, in accordance with the AIPC 54-50-00 -
PYLON.
1 The external shear pin PN 190-15179-003 (01 position).
2 The washer PN NAS1149C1432R (as required).
NOTE: Install washer PN NAS1149C1432R according to the need of cotter pin installation.
3 The castellated nut PN PE22072L14 (01 position).
 
(b) Apply torque to the castellated nut PN PE22072L14 as follows. Refer to AMM TASK
20-10-01-910-801-A/200 - Bolt Torque Data - Maintenance Practices.
NOTE: Make sure that the fuse pin does not turn when you apply the torque. If necessary,
safety the other side of the fuse pin with a proper wrench to do not let it to turn.
1 Turn the castellated nut PN PE22072L14 and measure the drag torque.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 47 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 50

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 5 of 12)
2 Make sure that the drag torque is between 7.91 - 67.79 N.m (70 - 600 lb.in).
NOTE: If the castellated nut PN PE22072L14 is not in the correct range, replace it with
new one (same PN).
3 Add the drag torque value measured in 6.(b)1 Figure 3  to the standard torque of 50.8 to
73.4 N.m (450 to 650 lb.in) to get the final torque.
4 Apply the final torque to the castellated nut PN PE22072L14.
 
(c) Install the new internal shear pin PN 191-32676-001 (01 position) to the external shear pin PN
190-15179-003 (01 position) of the LH/RH pylon lower link fitting outboard. Refer to Detail F
(Post-Mod).
NOTE: This step shall be done only after you make sure that the final torque to the castellated
nut PN PE22072L14 was applied.
1 Apply Corrosion Inhibiting Compound (MEP_09-075) COR-BAN 27L on the new internal
shear pin PN 191-32676-001 (01 position).
NOTE: Make sure that the protruding threaded end of the internal shear pin is completely
wet with Corrosion Inhibiting Compound (MEP_09-075) COR-BAN 27L.
2 Install the new internal shear pin PN 191-32676-001 (01 position).
3 Install the washer PN 170-16196-001 (01 position) and castellated nut PN MS14145L8 (01
position).
NOTE: If required, other castellated nut can be installed as an alternative to the
castellated nut PN MS14145L8. The other part number must be listed as optional
item or substitute (I/W - Interchangeable With) of the part number listed in this
bulletin, in accordance with the AIPC 54-50-00 - PYLON.
4 To install the washer PN 170-16196-001 (01 position) and castellated nut PN MS14145L8
(01 position) do as follows:
a Safety the internal and external shear pins, through their cotter pin holes, with a
proper tooling to prevent them from turning when you install the castellated nut PN
MS14145L8, that attaches the internal shear pin on the external shear pin.
NOTE: An example of tooling that you can use to safety the internal and external
shear pins is a commercially available pin punch set.
b Apply sufficient torque to the assembly to make sure that it is correctly locked and
make sure that the castellated nut is aligned for cotter pin installation. There is no
specified torque for this assembly.
1) Make sure that washer PN 170-16196-001 is completely locked after you
tighten the assembly.
– If it is moving, apply the torque to the assembly again ( 6.(c)4 b Figure 3).
5 Install a new cotter pin PN MS24665-372 (01 position).
SERVICE BULLETIN
SB 190-54-0016
Page 48 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 51

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 6 of 12)
NOTE: If required, other cotter pin can be installed as an alternative to the cotter pin PN
MS24665-372. The other part number must be listed as optional item or substitute
(I/W - Interchangeable With) of the part number listed in this bulletin, in accordance
with the AIPC 54-50-00 - PYLON.
(d) Install a new cotter pin PN MS24665-376 (01 position).
NOTE: If required, other cotter pin can be installed as an alternative to the cotter pin PN
MS24665-376. The other part number must be listed as optional item or substitute (I/W -
Interchangeable With) of the part number listed in this bulletin, in accordance with the
AIPC 54-50-00 - PYLON.
(e) Install the L-profile PN 191-28265-001 (01 position for LH side) or PN 191-28265-002 (01
position for RH side) on the lock washer PN 191-28263-401 (01 position for LH side) or PN
191-28263-402 (01 position for RH side) with the screw PN NAS1802-04-5 (02 positions).
NOTE: If required, other screw can be installed as an alternative to the screw PN
NAS1802-04-5. The other part number must be listed as optional item or substitute (I/W
- Interchangeable With) of the part number listed in this bulletin, in accordance with the
AIPC 54-50-00 - PYLON.
7. [RC Exempt] Apply a drop of Yellow Torque Seal (MEP 09-068) F-925 on the threaded end of the
outboard fuse pin. Refer to Detail B (Post-Mod).
8. [RC Exempt] Apply a coat of Corrosion Inhibiting Compound, Type III (MEP 10-063) ARDROX AV-15
on the pylon outboard area. Refer to Detail B (Post-Mod).
 
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 49 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 52

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 7 of 12)
EM170SB540388B.DGN
A
ZONES
419
429
B
LH PYLON
(REF.)
INBOARD PYLON FAIRING
OUTBOARD PYLON FAIRING
(REF.)
LEFT SIDE SHOWN
RIGHT SIDE OPPOSITE
A
SERVICE BULLETIN
SB 190-54-0016
Page 50 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 53

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 8 of 12)
1
B
OUTBOARD SIDE
(REF.)
INBOARD SIDE
(REF.)
1
1
5
5
COTTER PIN
PN MS24665−376
(REMOVE AND 
DISCARD)
COTTER PIN
PN MS24665−376
(REMOVE AND DISCARD)
PRE − MOD
1
LEFT SIDE SHOWN
RIGHT SIDE OPPOSITE
C
D
APPLICABLE TO AIRCRAFT OF GROUP 2.
EM170SB540389C.DGN
PLAIN BUSHING
PN 190−33685−023
(REF.)
PLAIN BUSHING
PN 190−33686−023
(REF.)
WASHER
PN NAS1149C1432R
(REMOVE AND KEEP)
WASHER
PN NAS1149C1432R
(REMOVE AND KEEP)
1
5
1
5
FUSE PIN
PN 190−15183−40X (INBOARD)
(RELEASE)
FUSE PIN
PN 190−15180−40X (OUTBOARD)
(RELEASE)
LOCK 
WASHER 
AND
L−PROFILE
(REF.)
LOCK 
WASHER
AND
L−PROFILE
(REF.)
CASTELLATED NUT
PN PE22072L14
(REMOVE AND KEEP)
CASTELLATED NUT
PN PE22072L14
(REMOVE AND KEEP)
C1
C1
D1
D1
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 51 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 54

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 9 of 12)
1
1
C
D
INTERNAL SHEAR PIN
PN 190−15181−005 (INBOARD)
(REMOVE AND DISCARD)
INTERNAL SHEAR PIN
PN 190−15178−005 (OUTBOARD)
(REMOVE AND DISCARD)
COTTER PIN
PN MS24665−372
(REMOVE AND DISCARD)COTTER PIN
PN MS24665−372
(REMOVE AND DISCARD)
WASHER
PN 170−16196−001
(REMOVE AND KEEP)
WASHER
PN 170−16196−001
(REMOVE AND KEEP)
1
1
1
5
5
5
5
PRE − MOD
PRE − MOD
APPLICABLE TO AIRCRAFT OF GROUP 2.
1
1
EM170SB540382B.DGN
EXTERNAL SHEAR PIN
PN 190−15182−003 (INBOARD)
(REF.)
EXTERNAL SHEAR PIN
PN 190−15179−003 (OUTBOARD)
(REF.)
CASTELLATED NUT
PN MS14145L8
(REMOVE AND KEEP)
CASTELLATED NUT
PN MS14145L8
(REMOVE AND KEEP)
SERVICE BULLETIN
SB 190-54-0016
Page 52 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 55

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 10 of 12)
EM170SB540461B.DGN
C1
D1
1 2
1 2
1 2
1 2
1 APPLICABLE TO AIRCRAFT OF GROUP 2.
1
1
L PROFILE
PN 191−28265−001 
(INBOARD/OUTBOARD)
(REMOVE AND KEEP)
(INSTALL)
SCREW
PN NAS1802−04−5
(REMOVE AND KEEP)
(INSTALL)
L PROFILE
PN 191−28265−001 (INBOARD)
PN 191−28265−002 (OUTBOARD)
(REMOVE AND KEEP)
(INSTALL)
SCREW
PN NAS1802−04−5
(REMOVE AND KEEP)
(INSTALL)
LOCK WASHER
PN 191−28264−401 (INBOARD)
PN 191−28263−401 (OUTBOARD)
(REF.)
LOCK WASHER
PN 191−28264−401 (INBOARD)
PN 191−28263−402 (OUTBOARD)
(REF.)
TYPICAL
(LH PYLON)
TYPICAL
(RH PYLON)
6
6
6
6
5
5
5
5
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 53 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 56

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 11 of 12)
3 5
2
2
3 5
4 5
4 5
COTTER PIN
PN MS24665−376
(INSTALL)
WASHER
PN NAS1149C1432R
(INSTALL)
WASHER
PN NAS1149C1432R
(INSTALL)
3
4
5 APPLY CORROSION INHIBITING COMPOUND (MEP_10−063) ARDROX AV−15.
POST − MOD
B
OUTBOARD SIDE
(REF.)
INBOARD SIDE
(REF.)
INSTALL WASHER PN NAS1149C1432R ACCORDING TO THE NEED OF COTTER PIN INSTALLATION.
6
6
6
COTTER PIN
PN MS24665−376
(INSTALL)
APPLY TORQUE OF 50.8 TO 73.4 N.m (450 TO 650 lb.in) PLUS DRAG TORQUE OF 7.91 − 67.79 N.m (70−600 lb.in).
LEFT SIDE SHOWN
RIGHT SIDE OPPOSITE
E
F
1
2
APPLICABLE TO AIRCRAFT OF GROUP 2.
1
EM170SB540390C.DGN
PLAIN BUSHING
PN 190−33685−023
(REF.)
PLAIN BUSHING
PN 190−33686−023
(REF.)
LOCK 
WASHER
AND
L−PROFILE
(REF.) LOCK 
WASHER
AND
L−PROFILE
(REF.)
CASTELLATED NUT
PN PE22072L14
(INSTALL)
CASTELLATED NUT
PN PE22072L14
(INSTALL)
EXTERNAL SHEAR PIN
PN 190−15182−003 (INBOARD)
(REF.)
EXTERNAL SHEAR PIN
PN 190−15179−003 (OUTBOARD)
(REF.)
APPLY A DROP OF TORQUE SEAL F−925 ON THE THREADED END OF THE FUSE PIN.
C1
C1
D1
D1
2
2
2
SERVICE BULLETIN
SB 190-54-0016
Page 54 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 57

FIGURE 3 - PYLON LOWER LINK FITTING - INTERNAL SHEAR PIN REPLACEMENT
(Sheet 12 of 12)
2
7
E
F
2
2
2
6
6
6
6
INTERNAL SHEAR PIN
PN 191−32677−001 (INBOARD)
(INSTALL)
INTERNAL SHEAR PIN
PN 191−32676−001 (OUTBOARD)
(INSTALL)
6
7
7
WASHER
PN 170−16196−001
(INSTALL)
WASHER
PN 170−16196−001
(INSTALL)
COTTER PIN
PN MS24665−372
(INSTALL)
COTTER PIN
PN MS24665−372
(INSTALL)
POST − MOD
POST − MOD
1
6
6
APPLICABLE TO AIRCRAFT OF GROUP 2.
1
1
EM170SB540385B.DGN
EXTERNAL SHEAR PIN
PN 190−15179−003 (OUTBOARD)
(REF.)
EXTERNAL SHEAR PIN
PN 190−15182−003 (INBOARD)
(REF.)
WET INSTALL INTERNAL SHEAR PIN AND MAKE SURE THAT THE PROTRUDING THREADED END OF INTERNAL 
SHEAR PIN IS COMPLETELY WET WITH CORROSION INHIBITING COMPOUND PN COR−BAN 27L.
8
8
8
CASTELLATED NUT
PN MS14145L8
(INSTALL)
CASTELLATED NUT
PN MS14145L8
(INSTALL)
APPLY SUFFICIENT TORQUE TO THE ASSEMBLY TO MAKE SURE THAT IT IS CORRECTLY LOCKED AND 
MAKE SURE THAT THE CASTELLATED NUT IS ALIGNED FOR COTTER PIN INSTALLATION.
MAKE SURE THAT THE WASHER PN 170−16196−001 IS COMPLETELY LOCKED AFTER YOU TIGHTEN THE ASSEMBLY. 
IF IT IS NOT LOCKED, APPLY TORQUE TO THE ASSEMBLY AGAIN.
SERVICE BULLETIN
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
SB 190-54-0016
Page 55 of 56
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 58

FIGURE 4 - OUTBOARD EXTERNAL SHEAR PIN INSPECTION
(Sheet 1 of 1)
A
ZONES
419
429
A
PYLON FITTINGS
(REF.)
OUTBOARD PYLON FAIRING
419ACL (SKIN 5) − LH
429AER (SKIN 5) − RH
(REF.)
TYPICAL
PYLON
(REF.)
EXTERNAL SHEAR PIN
(OUTBOARD)
(REF.)
1 CHECK THE OUTBOARD EXTERNAL SHEAR PIN PART NUMBER.
2
1
PART NUMBER
(REFERENCE 
POSITION)
2
PRODUCTION
ORDER ID
(REFERENCE 
POSITION)
PIN SERIAL NUMBER
(REFERENCE 
POSITION)
C
EM170SB540474A.DGN
BB
C
(INTERNAL SHEAR PIN OMITTED
FOR BETTER VISUALIZATION)
CHECK THE PRODUCTION ORDER ID NUMBER.
SERVICE BULLETIN
SB 190-54-0016
Page 56 of 56
Date:  Sep 22, 2015
Revision No.:  04 - Dec 07, 2017
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 59

The purpose of this form is to collect data that will be used to improve the quality of our Service Bulletins and
Reliability Program.
EMBRAER S.A.
FLEET PERFORMANCE & RELIABILITY
Av. Brig. Faria Lima, 2170
São José dos Campos - SP
CEP: 12227-901 - PO Box: 36/2
Brasil
Fax: ++ 55 12 3927-2619
e-mail: fleet.reliability@embraer.com.br
S.B.: (Number / Rev.) S.B. Title:
  
SB Implementation Report
Aircraft Serial Number or Registration Number:
 
Incorporation Date:
 
Aircraft Flight Hours:
 
Aircraft Landings:
 
SB Evaluation  (Check applicable boxes below and use the space as required to provide any additional information)
Estimated Manpower: [ ] OK [ ] NOT OK
Material & Kits: [ ] OK [ ] NOT OK
Accomplishment Instructions: [ ] OK [ ] NOT OK
Figures: [ ] OK [ ] NOT OK
SB General Evaluation: [ ] OK [ ] NOT OK
Comments:  (Bulletin quality, difficulties found at the time of incorporation, suggested improvements, other)
Company/ Service Center:
 
E-mail:
 
Phone:
 
Address:
 
Form filled by:
 
Work Order:
 
SERVICE BULLETIN EVALUATION
Copyright © by Embraer S.A. All rights reserved - See title page for details.

### Page 60

(No text on this page.)

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