# Embraer Service Bulletin 170-26-0011

Copy: Revision 02 ("U.S. DOT/FAA - SB170-26-0011 R02"), 26 pages: PDF https://openairdocs.org/files/sha256/67/f1/67f16854ff6f580954733b884e44661cb7ff29283e9bb35978d6e0f408fcf3f0; text https://openairdocs.org/service-documents/embraer/sb-170-26-0011/file/67f16854ff6f.md. Rights: © Embraer S.A. Filed by the FAA in regulations.gov docket FAA-2012-1077; AD 2013-05-12 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Embraer](https://openairdocs.org/service-documents/embraer.md)
- Type: Service bulletin (Service Bulletin)
- Number: 170-26-0011
- Latest revision known: 170-26-0011, Revision 02, dated October 17, 2012 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/embraer/sb-170-26-0011

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

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

- [AD 2013-05-12](https://openairdocs.org/ad/2013-05-12.md), effective May 3, 2013: Revisions 01 and 02

Also cited in [1 proposed AD](https://openairdocs.org/service-documents/embraer/sb-170-26-0011/proposed.md).

## Text (26 pages)

Rights: © Embraer S.A. Filed by the FAA in regulations.gov docket FAA-2012-1077; AD 2013-05-12 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 transmits Revision 02 to Service Bulletin 170-26-0011.
This is a complete reissue of the Bulletin.
2. ADDITIONAL ACTION
– For aircraft that have complied with the basic issue of this bulletin need an additional
action according to PART III of this bulletin.
– For aircraft that have complied with the Revision 01 of this bulletin do not need any
additional action.
3. RECORD OF REVISION
Basic issue: 01/Dec/2011.
Revision 01: 19/Jun/2012.
Revision 02: 17/Oct/2012.
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 put in the left margin of each page to show the location of the significant
changes. Text displacement and text format changes are not indicated.
TOPIC/PAGE DESCRIPTION OF REVISION
1.A. SB EFFECTIVITY/ 01 Include aircraft model in group 2.
1.C. REASON/ 02 Added reason for revision 02.
1.F. APPROVAL/ 04 Revised text.
3. ACCOMPLISHMENT INSTRUCTIONS/ 12 thru 15 Include additional CMC messages related to systemtest and revise text.
TRANSMITTAL LETTER
SB No.: 170-26-0011
PAGE: 1 of 1
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 2

(No text on this page.)

### Page 3

FIRE PROTECTION - FIREX DISCHARGE BOTTLE ELECTRICAL CONNECTORS,
DISCHARGE HEADS AND HIGH RATE DISCHARGE BOTTLE INSPECTION /
RELOCATION
1. PLANNING INFORMATION
A. SB EFFECTIVITY
Aircraft affected:
(1) GROUP 1
MODEL SN
Embraer 170( ) and 175( ) 17000002, 17000004 thru 17000013, and 17000015
thru 17000318, which have not been modified
according to the previous issue of this bulletin.
(2) GROUP 2
MODEL SN
Embraer 170( ) and 175( ) 17000002, 17000004 thru 17000013, and 17000015
thru 17000318, which have already been modified
according to the previous issue of this bulletin.
Affected component:
None.
In-production effectivity:
Embraer 170( ) and 175( ) model aircraft SN 17000319 and on, have an equivalent
modification factory-incorporated.
SERVICE BULLETIN
DATE: 01/Dec/2011
REVISION No.:02 - 17/Oct/2012
SB No.: 170-26-0011
PAGE: 1 of 21
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 4

B. CONCURRENT REQUIREMENTS
None.
C. REASON
(1) HISTORY
Investigation has revealed the possibility of the electrical connectors of the Low and
High Rate Discharge bottles, the Low and High discharge heads, and also the High
Rate Discharge bottle installation being inverted in the fire extinguisher system
(FIREX), in the cargo compartment.
(2) OBJECTIVE
To inspect, relocate and replace, if applicable, the Low and High Rate Discharge
bottle electrical connectors and the Low and High Rate Discharge bottles.
(3) EXPECTED BENEFITS
The actions proposed in this bulletin are to maintain the fire extinguishing system
effectiveness by returning, if necessary, the electrical connectors of the FIREX Low
and High Rate Discharge bottle installation to its original configuration, and also to
replace if necessary the Low and High Rate bottles.
(4) REVISION HISTORY
None.
REVISION 01: This revision has been issued to include to include new conditions
related to the inspection mentioned in this Service Bulletin and
included PART III as an additional action.
REVISION 02: This revision has been issued to include additional CMC messages
related to system test mentioned in this Service Bulletin for LDI
version and revise text.
D. DESCRIPTION
This Bulletin is divided into 3 PARTS, as follows:
SERVICE BULLETIN
SB No.: 170-26-0011
PAGE: 2
DATE: 01/Dec/2011
REVISION No.: 02 - 17/Oct/2012
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 5

PART I
THE HIGH RATE DISCHARGE BOTTLE CORRECT POSITION, THE PART
NUMBER OF DISCHARGE HEADS AND FIREX DISCHARGE BOTTLE
CONNECTORS INSPECTION
Applicable to: GROUP 1
PART I of this bulletin provides the instructions to inspect the correct position of the High
Rate Discharge (HRD) bottle and reinstall it if applicable; inspect the part number of
discharge heads in the Low and High Rate Discharge bottle and replace the Rate
Discharge bottle if necessary; inspect the identification of the Low and High Rate
Discharge bottle electrical connectors of the fire extinguisher system (FIREX), in the
cargo compartment and also, perform a system test.
To do this, it is necessary to gain access to the middle avionics by removing the related
access door 199AL and 147AL.
PART II FIREX DISCHARGE BOTTLE CONNECTORS RELOCATION
Applicable to: GROUP 1
PART II of this bulletin provides the instructions to relocate the Low and High Rate
Discharge bottle electrical connectors of the fire extinguisher system (FIREX), in the
cargo compartment and also to perform a system test.
To do this, it is necessary to gain access to the middle avionics by removing the related
access door 199AL and 147AL.
PART III ADDITIONAL ACTION
Applicable to: GROUP 2
PART III of this bulletin provides the instructions to inspect the correct position of the High
Rate Discharge (HRD) bottle and reinstall if applicable; inspect the part number of
discharge heads in the Low and High Rate Discharge bottle and replace the Rate
discharge bottle if necessary and also, perform a system test.
To do this, it is necessary to gain access to the middle avionics by removing the related
access door 199AL and 147AL.
NOTE: The modification presented in this bulletin does not affect the Fatigue
Critical Structure (FCS).
SERVICE BULLETIN
DATE: 01/Dec/2011
REVISION No.:02 - 17/Oct/2012
SB No.: 170-26-0011
PAGE: 3
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 6

E. COMPLIANCE
(1) APPLICABLE TO PART I
Embraer recommends that PART I of this bulletin be accomplished within the next
3000 Flight Hour(s) or 15 months, whichever occurs first.
(2) APPLICABLE TO PART II
Embraer recommends that PART II of this bulletin be accomplished immediately
after the accomplishment of PART I.
(3) APPLICABLE TO PART III
Embraer recommends that PART III of this bulletin be accomplished within the next
3000 Flight Hour(s) or 15 months, whichever occurs first.
F. APPROVAL
The technical aspects of this Service Bulletin are approved by: Agência Nacional de
Aviação Civil (ANAC).
NOTE: If any aircraft listed in the SB effectivity has a modification or repair
incorporated that is not of EMBRAER origin, 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 estimate is for direct labor only, performed by experienced personnel, and does not
include the time to plan, prepare, or inspect the work.
It is assumed that all the tools, parts, and other means are readily available when
necessary.
This estimate does not include the sealant, paint, or adhesive curing time.
SERVICE BULLETIN
SB No.: 170-26-0011
PAGE: 4
DATE: 01/Dec/2011
REVISION No.: 02 - 17/Oct/2012
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 7

(1) APPLICABLE TO PART I
– Access opening: 0.5 man-hours.
– Inspection: 1.0 man-hour.
– Modification: None.
– Access closure: 0.5 man-hours.
– Test: 0.5 man-hours.
NOTE: These estimates do not include the time necessary to remove and reinstall
the rate discharge bottle, in this case 1.0 man-hour per bottle should be
added.
(2) APPLICABLE TO PART II
– Access opening: 0.5 man-hours.
– Inspection: None.
– Modification: 1.0 man-hour.
– Access closure: 0.5 man-hours.
– Test: 0.5 man-hours.
(3) APPLICABLE TO PART III
– Access opening: 0.5 man-hours.
– Inspection: 0.5 man-hours.
– Modification: None.
– Access closure: 0.5 man-hours.
– Test: 0.5 man-hours.
SERVICE BULLETIN
DATE: 01/Dec/2011
REVISION No.:02 - 17/Oct/2012
SB No.: 170-26-0011
PAGE: 5
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 8

NOTE: These estimates do not include the time necessary to remove and reinstall
the rate discharge bottle, in this case 1.0 man-hour per bottle should be
added.
H. WEIGHT AND BALANCE
None.
I. SOFTWARE ACCOMPLISHMENT SUMMARY
None.
J. REFERENCES
AMM 170/( ) Aircraft Maintenance Manual PART II - 20-00-00 - STANDARD
PRACTICES-AIRFRAME.
AMM 170/( ) Aircraft Maintenance Manual PART II - 26-23-01 - FIRE
PROTECTION.
AMM 170/( ) Aircraft Maintenance Manual PART II - 45-45-00 - CENTRAL
MAINTENANCE SYSTEM.
AMM 170/( ) Aircraft Maintenance Manual PART II - 52-46-00 - DOORS.
K. OTHER PUBLICATIONS AFFECTED
None.
SERVICE BULLETIN
SB No.: 170-26-0011
PAGE: 6
DATE: 01/Dec/2011
REVISION No.: 02 - 17/Oct/2012
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 9

2. MATERIAL INFORMATION
A. MATERIAL - PRICE AND AVAILABILITY
(1) MATERIAL AVAILABLE FROM EMBRAER
None.
(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 in place of the one specified in the
kits is allowable, provided that these alternative or similar parts are 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 referred to
in this bulletin should be procured from the operator’s inventories or ordered as spares.
(1) TOP KITS AND KITS
None.
(2) MATERIAL TO BE PROCURED
(a) Parts
The parts below should be ordered as spares from C&D ZODIAC.
SERVICE BULLETIN
DATE: 01/Dec/2011
REVISION No.:02 - 17/Oct/2012
SB No.: 170-26-0011
PAGE: 7
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 10

NEW PN DESCRIPTION OLD PN QTY DISP/Notes
474152-1 High Rate Dischargebottle 474152-1 01 7/ [1]
474153-4 Low Rate Dischargebottle 474153-4 01 7/ [1]
1. C&D Zodiac 14 Centerpointe Dr., La Palma, Ca. 90623-1028 USA ATTN: Product Support
(EMBRAER PROGRAM) Phone: (714) 523-9977 FAX: (714) 523-0995
(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 PART II
NEW PN DESCRIPTION OLD PN QTY DISP
MS3367-7-9 Tie-down strap MS3367-7-9 AR 6
DISPOSITION: 6 = Apply as required
7 = Replace with part bearing same PN
QUANTITY: AR = As Required
D. MATERIAL NECESSARY FOR EACH SPARE
None.
E. REIDENTIFIED PARTS
None.
SERVICE BULLETIN
SB No.: 170-26-0011
PAGE: 8
DATE: 01/Dec/2011
REVISION No.: 02 - 17/Oct/2012
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 11

F. TOOLING - PRICE AND AVAILABILITY
Whenever required, the necessary tooling presented in the AMM Tasks referred to in this
bulletin, should be procured from the operator’s inventories or ordered as spares.
SERVICE BULLETIN
DATE: 01/Dec/2011
REVISION No.:02 - 17/Oct/2012
SB No.: 170-26-0011
PAGE: 9
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 12

3. ACCOMPLISHMENT INSTRUCTIONS
NOTE: 1) For the purpose of this Service Bulletin, a General Visual Inspection (GVI) 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 condi-
tions 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 referenced manuals
and procedures.
3) The Manuals and other documents are referred to by acronyms or using a
simplified form. Refer to section 1.J. REFERENCES for a more complete
definition.
4) This Service Bulletin effectivity is divided into 03 PARTS. The SB PARTS are
featured to allow their independent accomplishment.
REFERENCE APPLICATION TABLE
SB PART APPLICABLE FIGURES
1 Figure 1 and Figure 3
2 Figure 2
3 Figure 3
The steps below outline the general accomplishment instructions.
The detailed sequence is included in the respective figure, when necessary.
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. On the MCDU open the SSPCs described below, using the sequence in parentheses:
(1) CRG AFT HRD PWR1-SPDA1 (CBMENU/CB BY SYS/FIRE PROT).
(2) CRG AFT HRD PWR2-SPDA2 (CBMENU/CB BY SYS/FIRE PROT).
SERVICE BULLETIN
SB No.: 170-26-0011
PAGE: 10
DATE: 01/Dec/2011
REVISION No.: 02 - 17/Oct/2012
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 13

(3) CRG AFT LRD PWR1-SPDA1 (CBMENU/CB BY SYS/FIRE PROT).
(4) CRG AFT LRD PWR2-SPDA2 (CBMENU/CB BY SYS/FIRE PROT).
(5) CRG FWD HRD PWR1-SPDA1 (CBMENU/CB BY SYS/FIRE PROT).
(6) CRG FWD HRD PWR2-SPDA2 (CBMENU/CB BY SYS/FIRE PROT).
(7) CRG FWD LRD PWR1-SPDA1 (CBMENU/CB BY SYS/FIRE PROT).
(8) CRG FWD LRD PWR2-SPDA2 (CBMENU/CB BY SYS/FIRE PROT).
C. Open access door 199AL.
D. Remove access door 147AL. Refer to AMM TASK 52-46-00-000-801-A/400 - Middle
Avionics-Compartment Access-Door - Removal.
E. PART I
(1) Check the correct installation of the High Rate Discharge (HRD) bottle and make
sure that the pressure switch is in its correct position, as shown in Figure 3.
(a) If no discrepancy is detected, perform step 3. E. (2) and on.
(b) If any discrepancy is detected, the High Rate Discharge (HRD) bottle must be
removed and reinstalled in the correct position. Refer to AMM MPP 26-23-
01/401 - CARGO COMPARTMENT FIRE EXTINGUISHING BOTTLE (HIGH
RATE AND LOW RATE) - REMOVAL/INSTALLATION.
After that, perform step 3. E. (2) and on.
(2) Check the Part Number of the Discharge Head of the High Rate Discharge (HRD)
and Low Rate Discharge (LRD), according to Figure 3.
(a) If no discrepancy is detected, perform step 3. E. (3) and on.
(b) If any discrepancy is detected, the affected Rate Discharge bottle must be
replaced with another one with the same part number, immediately. Refer to
AMM MPP 26-23-01/401 - CARGO COMPARTMENT FIRE EXTINGUISHING
BOTTLE (HIGH RATE AND LOW RATE) - REMOVAL/INSTALLATION.
SERVICE BULLETIN
DATE: 01/Dec/2011
REVISION No.:02 - 17/Oct/2012
SB No.: 170-26-0011
PAGE: 11
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 14

NOTE: If is not possible to replace the Rate Discharge bottle immediately, the
aircraft can be dispatched according to Master Minimum Equipment
List (MMEL).
After that, perform step 3. E. (3) and on.
(3) Check the identification of the High Rate Discharge (HRD) bottle electrical connec-
tors (P0427, and P1820 or P4191) and the Low Rate Discharge (LRD) bottle
electrical connectors (P0428, and P1821 or P4192) of the fire extinguisher system
(FIREX), according to Figure 1, details B, C and D.
NOTE: 1) P1820 and P1821 are applicable to aircraft SN 17000001 thru
17000237.
2) P4191 and P4192 are applicable to aircraft SN 17000238 and on.
(a) If no discrepancy is detected, perform step 3. E. (4) and on.
(b) If any discrepancy is detected, perform PART II of this bulletin.
(4) Perform the system test as follows:
(a) Disconnect electrical connectors P0428 and P1820 or P4191 and, in the
cockpit, using the MFD2, check if the following messages become active on the
CMC. Refer to AMM TASK 45-45-00-970-803-A/200 - Maintenance Messages
- Check.
– MAU3/CRG FWD FIREX LRD EED FAULT.
– MAU3/CRG AFT FIREX HRD EED FAULT.
OR
– MAU3 GIO3/CRG FWD FIREX LRD EED.
– MAU3 GIO3/CRG AFT FIREX HRD EED.
NOTE: 1) Make sure the message applicable to FWD cargo compartment is
related to Low Rate Discharge (LRD) bottle.
SERVICE BULLETIN
SB No.: 170-26-0011
PAGE: 12
DATE: 01/Dec/2011
REVISION No.: 02 - 17/Oct/2012
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 15

2) Make sure the message applicable to AFT cargo compartment is
related to High Rate Discharge (HRD) bottle.
(b) Reconnect electrical connectors P0428 and P1820 or P4191 and make sure the
CMC messages above become inactive; perform step 3. H and on.
F. PART II
(1) Relocate the high rate discharge bottle electrical connectors (P0427, and P1820 or
P4191) and the low rate discharge bottle electrical connectors (P0428, and P1821
or P4192) of the fire extinguisher system (FIREX), as applicable, by re-routing the
electrical harness according to Figure 2, detail B.
NOTE: 1) P1820 and P1821 are applicable to aircraft SN 17000001 thru
19000237.
2) P4191 and P4192 are applicable to aircraft SN 17000238 and on.
(2) Perform the system test as follows:
(a) Disconnect electrical connectors P0428 and P1820 or P4191 and, in the
cockpit, using the MFD2, check if the following messages become active on the
CMC. Refer to AMM TASK 45-45-00-970-803-A/200 - Maintenance Messages
- Check.
– MAU3/CRG FWD FIREX LRD EED FAULT.
– MAU3/CRG AFT FIREX HRD EED FAULT.
OR
– MAU3 GIO3/CRG FWD FIREX LRD EED.
– MAU3 GIO3/CRG AFT FIREX HRD EED.
NOTE: 1) Make sure the message applicable to FWD cargo compartment is
related to Low Rate Discharge (LRD) bottle.
2) Make sure the message applicable to AFT cargo compartment is
related to High Rate Discharge (HRD) bottle.
SERVICE BULLETIN
DATE: 01/Dec/2011
REVISION No.:02 - 17/Oct/2012
SB No.: 170-26-0011
PAGE: 13
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 16

(b) Reconnect electrical connectors P0428 and P1820 or P4191, and make sure
the CMC messages above become inactive; perform step 3. H and on.
G. PART III
(1) Check the correct installation of the High Rate Discharge (HRD) bottle and make
sure that the pressure switch is in its correct position, as shown in Figure 3 .
(a) If no discrepancy is detected, perform step 3. G. (2).
(b) If any discrepancy is detected, the High Rate Discharge (HRD) bottle must be
removed and reinstalled in the correct position, and after that perform step 3. G.
(3). Refer to AMM MPP 26-23-01/401 - CARGO COMPARTMENT FIRE
EXTINGUISHING BOTTLE (HIGH RATE AND LOW RATE) -
REMOVAL/INSTALLATION.
After that, perform step 3. G. (2).
(2) Check the Part Number of the Discharge Head of the High Rate Discharge (HRD)
and Low Rate Discharge (LRD), according to Figure 3.
(a) If no discrepancy is detected, perform step 3. H and on.
(b) If any discrepancy is detected, the affected Rate Discharge bottle must be
replaced with another one with the same part number, immediately, and after
that perform step 3. G. (3). Refer to AMM MPP 26-23-01/401 - CARGO
COMPARTMENT FIRE EXTINGUISHING BOTTLE (HIGH RATE AND LOW
RATE) - REMOVAL/INSTALLATION.
NOTE: If is not possible to replace the Rate Discharge bottle immediately, the
aircraft can be dispatched according to Master Minimum Equipment
List (MMEL).
After that, perform step 3. H and on.
(3) Perform the system test as follows:
(a) Disconnect electrical connectors P0428 and P1820 or P4191 and, in the
cockpit, using the MFD2, check if the following messages become active on the
CMC. Refer to AMM TASK 45-45-00-970-803-A/200 - Maintenance Messages
- Check.
SERVICE BULLETIN
SB No.: 170-26-0011
PAGE: 14
DATE: 01/Dec/2011
REVISION No.: 02 - 17/Oct/2012
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 17

– MAU3/CRG FWD FIREX LRD EED FAULT.
– MAU3/CRG AFT FIREX HRD EED FAULT.
OR
– MAU3 GIO3/CRG FWD FIREX LRD EED.
– MAU3 GIO3/CRG AFT FIREX HRD EED.
NOTE: 1) Make sure the message applicable to FWD cargo compartment is
related to Low Rate Discharge (LRD) bottle.
2) Make sure the message applicable to AFT cargo compartment is
related to High Rate Discharge (HRD) bottle.
(b) Reconnect electrical connectors P0428 and P1820 or P4191, and make sure
the CMC messages above become inactive.
H. On the MCDU close the SSPCs described below, using the sequence in parentheses:
(1) CRG AFT HRD PWR1-SPDA1 (CBMENU/CB BY SYS/FIRE PROT).
(2) CRG AFT HRD PWR2-SPDA2 (CBMENU/CB BY SYS/FIRE PROT).
(3) CRG AFT LRD PWR1-SPDA1 (CBMENU/CB BY SYS/FIRE PROT).
(4) CRG AFT LRD PWR2-SPDA2 (CBMENU/CB BY SYS/FIRE PROT).
(5) CRG FWD HRD PWR1-SPDA1 (CBMENU/CB BY SYS/FIRE PROT).
(6) CRG FWD HRD PWR2-SPDA2 (CBMENU/CB BY SYS/FIRE PROT).
(7) CRG FWD LRD PWR1-SPDA1 (CBMENU/CB BY SYS/FIRE PROT).
(8) CRG FWD LRD PWR2-SPDA2 (CBMENU/CB BY SYS/FIRE PROT).
I. Close access door 199AL.
J. Reinstall access door 147AL. Refer to AMM TASK 52-46-00-400-801-A/400 - Middle
SERVICE BULLETIN
DATE: 01/Dec/2011
REVISION No.:02 - 17/Oct/2012
SB No.: 170-26-0011
PAGE: 15
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 18

Avionics-Compartment Access-Door - Installation.
K. Restore the aircraft to normal.
L. Enter the accomplishment of PART I and/or PART II, or PART III of this bulletin in the
applicable documents.
NOTE: 1) Please inform us by e-mail fleet.reliability@embraer.com.br of the aircraft
manufacturer serial number and the SB incorporation date, specifying the SB
Part(s) incorporated or whether the whole SB has been incorporated. This
will enable Embraer to consider your aircraft configuration when providing
future modifications.
2) To formally inform that the SB has been incorporated fleet-wide or that the
SB will not be incorporated, so that Embraer can update the affected
technical publications, use the “Service Bulletin Full-Fleet Incorporation
Report” form, which is available on the Flyembraer portal
(http://www.flyembraer.com).
3) Use the attached “Service Bulletin Evaluation” form to send us your
comments regarding this SB. Your feedback will be much appreciated as an
aid for us to improve the quality of the SBs.
SERVICE BULLETIN
SB No.: 170-26-0011
PAGE: 16
DATE: 01/Dec/2011
REVISION No.: 02 - 17/Oct/2012
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 19

ZONE
148
A
B
A
B
C
D
FR57
STRG 23R
EM170SB260128A.DGN
SERVICE BULLETIN
DATE: 01/Dec/2011
REVISION No.:02 - 17/Oct/2012
SB No.: 170-26-0011
PAGE: 17
FIGURE 1 - INSPECTION OF FIREX DISCHARGE BOTTLE CONNECTORS
(SHEET 01 OF 02)
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 20

C
D
P1820 AND P1821 ARE APPLICABLE TO AIRCRAFT SN 17000001 THRU 17000237.1
2 P4191 AND P4192 ARE APPLICABLE TO AIRCRAFT SN 17000238 AND ON
PRESSURE SWITCH
(P0429)
(REF.)
12
PRESSURE SWITCH
(P0430)
(REF.)
12
EM170SB260129A.DGN
HIGH RATE
DISCHARGE BOTLE
(HRD)
(REF.)
ELECTRICAL
CONNECTOR 
(P0427) (FWD)
(INSPECT)
ELECTRICAL
CONNECTOR (P1820
OR P4191) (AFT)
(INSPECT)
ELECTRICAL
CONNECTOR 
(P0428) (FWD)
(INSPECT)
LOW RATE
DISCHARGE BOTLE
(LRD)
(REF.)
ELECTRICAL
CONNECTOR (P1821 
OR P4192) (AFT)
(INSPECT)
SERVICE BULLETIN
SB No.: 170-26-0011
PAGE: 18
DATE: 01/Dec/2011
REVISION No.: 02 - 17/Oct/2012
FIGURE 1 - INSPECTION OF FIREX DISCHARGE BOTTLE CONNECTORS
(SHEET 02 OF 02)
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 21

A
ZONE
148
A
FR57
STRG 20R
STRG 23R
STRG 27R
B
EM170SB260130A.DGN
SERVICE BULLETIN
DATE: 01/Dec/2011
REVISION No.:02 - 17/Oct/2012
SB No.: 170-26-0011
PAGE: 19
FIGURE 2 - RELOCATION OF FIREX DISCHARGE BOTTLE CONNECTORS
(SHEET 01 OF 02)
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 22

FR57 FR58
STRG 20R
STRG 26R
12
W120
(REF.)
B
P1820 AND P1821 ARE APPLICABLE TO AIRCRAFT SN 17000001 THRU 17000237.1
2 P4191 AND P4192 ARE APPLICABLE TO AIRCRAFT SN 17000238 AND ON.
EM170SB260131A.DGN
12
ELECTRICAL
CONNECTOR
(P1820 OR P4191)
(HRD)
(REROUTE, IF
APPLICABLE)
ELECTRICAL CONNECTOR
(P0427) (HRD)
(REROUTE, IF APPLICABLE)
PRESURE
SWITCH 
(P0429)
(REF.)
ELECTRICAL
CONNECTOR 
(P0428) (LRD)
(REROUTE, IF
APPLICABLE)
ELECTRICAL
CONNECTOR (P1821
OR P4192) (LRD)
(REROUTE, IF
APPLICABLE)
PRESURE
SWITCH 
(P0430)
(REF.)
SERVICE BULLETIN
SB No.: 170-26-0011
PAGE: 20
DATE: 01/Dec/2011
REVISION No.: 02 - 17/Oct/2012
FIGURE 2 - RELOCATION OF FIREX DISCHARGE BOTTLE CONNECTORS
(SHEET 02 OF 02)
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 23

A
ZONE
148
EM170SB260141A.DGN1 "X" INDICATES THE REVISION THAT SHOULD NOT BE CONSIDERED DURING THE INSPECTION.
B
A
B
HIGH RATE
DISCHARGE BOTTLE
(HRD)
(REF.)
DISCHARGE HEAD
PN 446713−1X
(INSPECT)
DISCHARGE HEAD
PN 446713−1X
(INSPECT)
DISCHARGE HEAD
PN 446713X
(INSPECT)
DISCHARGE HEAD
PN 446713X
(INSPECT)
1
1
11
LOW RATE
DISCHARGE BOTTLE
(LRD)
(REF.)
PRESSURE SWITCH
(REF. FOR THE
CORRECT POSITION)
(INSPECT)
SERVICE BULLETIN
DATE: 01/Dec/2011
REVISION No.:02 - 17/Oct/2012
SB No.: 170-26-0011
PAGE: 21
FIGURE 3 - INSPECTION OF THE BOTTLES DISCHARGE HEADS AND THE HRD BOTTLE POSITION
(SHEET 01 OF 01)
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 24

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### Page 25

SERVICE BULLETIN EVALUATION
THE PURPOSE OF THIS FORM IS TO COLLECT DATA THAT WILL BE USED TO IMPROVE THE QUALITY OF OUR
SERVICE BULLETINS. PLEASE FILL IN FORM AND RETURN IT TO:
EMBRAER - EMPRESA BRASILEIRA DE AERONÁUTICA S.A.
EFTC - SERVICE BULLETIN ENGINEERING
AV. BRIGADEIRO FARIA LIMA, 2170
SÃO JOSÉ DOS CAMPOS - SP - 12227-901
BRASIL
Fax: + 55 12 3927-6600 (ext. 1624)
e-mail: fleet.reliability@embraer.com.br
S.B. Title: S.B.: (Number / Rev.)
Operator:
SB Implementation Report
Aircraft Serial Number or Registration Number: Incorporation Date:
Aircraft Flight Hours: Aircraft Landings:
POST-ACCOMPLISHMENT EVALUATION:(Check applicable squares below)
ESTIMATED MANPOWER: [ ] OK [ ] NOT OK (Explain Below)
MATERIAL & KITS: [ ] OK [ ] NOT OK (Explain Below)
ACCOMPLISHMENT INSTRUCTIONS: [ ] OK [ ] NOT OK (Explain Below)
FIGURES: [ ] OK [ ] NOT OK (Explain Below)
SB GENERAL EVALUATION: [ ] OK [ ] NOT OK (Explain Below)
COMMENTS: (Bulletin quality/ Difficulties found at the time of incorporation/ Suggested improvements/ Other)
Organization: Fax: Phone:
E-mail:
Address: Prepared by:(Name/Title) Date:
Copyright © 2012 by Embraer S.A. All rights reserved.

### Page 26

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