# Embraer Service Bulletin 145-55-0030

Copy: Revision 05 ("U.S. DOT/FAA - Service Information - 1"), 68 pages: PDF https://openairdocs.org/files/sha256/95/90/9590a8f90cd1374fe9ef5513b694f599ee627f442159c5df8ac8930a50d9e31e; text https://openairdocs.org/service-documents/embraer/sb-145-55-0030/file/9590a8f90cd1.md. Rights: © Embraer S.A. Filed by the FAA in regulations.gov docket FAA-2012-0638; AD 2012-19-06 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: 145-55-0030
- Latest revision known: 145-55-0030, Revision 05, dated July 29, 2011 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/embraer/sb-145-55-0030

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

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

- [AD 2012-19-06](https://openairdocs.org/ad/2012-19-06.md), effective Oct 29, 2012: Revision 05

Also cited in [1 proposed AD](https://openairdocs.org/service-documents/embraer/sb-145-55-0030/proposed.md).

## Text (68 pages)

Rights: © Embraer S.A. Filed by the FAA in regulations.gov docket FAA-2012-0638; AD 2012-19-06 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

TRANSMITTAL LETTER  
 
TRANSMITTAL LETTER SB No.: 145-55-0030 
 PAGE: 1 of 2 
 
1. DESCRIPTION  
 
This sheet transmits Revision 05 to Service Bulletin 145-55-0030. 
This is a complete reissue of the Bulletin. 
 
 
2. ADDITIONAL ACTION  
 
Aircraft that have complied with the previous issue s of this bulletin or have been 
factory modified need to accomplish PART II of this bulletin as additional action. 
 
 
 
3. RECORD OF REVISION  
 
Basic issue: 20/Jan/2003. 
Revision 01: 09/Sep/2003. 
Revision 02: 30/Dec/2003. 
Revision 03: 01/Dec/2004. 
Revision 04: 21/Feb/2006. 
Revision 05: 29/Jul/2011. 
 
 
 
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 pa ge to show the location of the 
significant changes. Text displacement and text format changes are not indicated. 
TOPIC/ PAGE DESCRIPTION OF REVISION 
1. PLANNING INFORMATION  
A. SB EFFECTIVITY / 01 thru 06  Updated effectivity  information. 
B. CONCURRENT  
REQUIREMENTS / 06 Included information. 
C. REASON / 07 Updated format and added reason for revision 05. 
D. DESCRIPTION / 08 Updated information and divided in PARTs. 
E. COMPLIANCE / 08 and 09 Included PART I and PART II information. 
G. ESTIMATED MANPOWER / 09 Included PART I and PART  II information.

### Page 2

TRANSMITTAL LETTER  
 
SB No.: 145-55-0030 TRANSMITTAL LETTER 
PAGE: 2 
TOPIC/ PAGE DESCRIPTION OF REVISION 
H. WEIGHT AND BALANCE / 10 and 
11 Included PART I and PART II information. 
J. AFFECTED PUBLICATIONS / 11  Updated information. 
2. MATERIAL INFORMATION  
A. MATERIAL – PRICE AND 
AVAILABILITY / 12 Updated format and information. 
 
B. INDUSTRY SUPPORT 
INFORMATION / 12 
Updated format. 
C. MATERIAL NECESSARY FOR 
EACH AIRCRAFT / 13 thru 16 
Updated format and include SB kit 
information. 
G. REIDENTIFIED PARTS / 17 Included information. 
H. TOOLING – PRICE AND 
AVAILABILITY / 18 Included standard note. 
3. ACCOMPLISHMENT  
INSTRUCTIONS / 19 and 20 
Included new procedures and divided SB 
in 2 PARTs. 
FIGURE 01 / 21 thru 33 Included new procedures and illustration. 
FIGURE 02 / 34 thru 42 Included new procedures and illustration. 
FIGURE 03 / 43 thru 51 Included new procedures and illustration. 
FIGURE 04 / 52 thru 65 Included rework procedure and illustration.

### Page 3

SERVICE BULLETIN
 
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 1 of 65 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
Copyright © 2011 by EMBRAER S.A. All rights reserve d. The information, technical data, designs and draw ings disclosed in this 
document are proprietary information of Embraer or third parties and shall not be used or disclosed to any third party without permission 
of Embraer. 
 
 
STABILIZERS – IMPROVEMENT IN LIGHTNING PROTECTION OF TAIL BOOM 
 
 
 
1. PLANNING INFORMATION 
 
A. EFFECTIVITY 
 
Aircraft affected: 
 
 
MODEL SN 
EMB-145( ) and EMB-135( ) 145002 thru 145362, 14536 4 thru 145411, 145413 
thru 145461, 145463 thru 145483, 145485 thru 
145494, 145496 thru 145504, 145506 thru 
145515, 145517 thru 145527, 145529 thru 
145539, 145541 thru 145548, 145550 thru 
145554, 145556 thru 145585, 145587 thru 
145589, 145592 thru 145624, 145626 thru 
145636, 145638 thru 145641, 145647, 145648, 
145651 thru 145653, 145656, 145661, 145663, 
145665, 145667 thru 145671, 145673, 145676, 
145679, 145680, 145682, 145685, 145687, 
145691, 145692, 145694 thru 145696, 145698, 
145701, 145702, 145707, 145709, 145710, 
145713, 145715, 145716, 145720, 145722 thru 
145726, 145728, 145729, 145734, 145736 thru 
145738, 145740, 145742 thru 145744, 145747, 
145748, 145750, 145752, 145754, 145755, 
145757, 145760, 145762 thru 145769, 145771, 
145773, 145774, 145776 thru 145779, 145781, 
145783 thru 145785, 145788, 145790, 145793 
thru 145795, 145797, 145798, 145800, 14500801, 
14500803, 14500804, 14500806, 14500807, 
14500810, 14500812 thru 14500816, 14500820 
thru 14500824, 14500826 thru 14500830, 
14500833, 14500835 thru 14500839, 14500842, 
14500843, 14500845 thru 14500849, 14500852, 
14500853, 14500855 thru 14500858, 14500860 
thru 14500862, 14500865, 14500866, 14500868

### Page 4

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 2 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
thru 14500871, 14500874, 14500875, 14500877, 
14500879, 14500882, 14500883, 14500885 thru 
14500887, 14500890, 14500892 thru 14500895, 
14500897 thru 14500899, 14500902, 14500905 
thru 14500908, 14500911, 14500912, 14500915, 
14500918, 14500920, 14500921, 14500923, 
14500926, 14500928, 14500930, 14500932, 
14500949, 14500958, 14500977, 14500984, 
14500987, 14500992, 14500996, 14501000, 
14501005, 14501009, 14501013, 14501019, 
14501022, 14501024, 14501027, 14501030, 
14501033, 14501036, 14501040, 14501043, 
14501047, 14501050, 14501053, 14501056, 
14501059, 14501063, 14501065, 14501068, 
14501070, 14501073, 14501077, 14501084, 
14501124, and 14501125. 
 
 
In-production effectivity: 
 
EMB-145( ) and EMB-135( ) aircraft SN 14501129, 14501130 and 14501135 and on, 
have an equivalent modification factory-incorporated.

### Page 5

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 3 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
The SB effectivity is divided into 04 GROUPS of aircraft, as follows: 
 
(1) GROUP 1 
MODEL SN 
EMB-145( ) and EMB-135( ) 145004 thru 145208, 14521 0 thru 145360, 145365 
thru 145411, 145413 thru 145425, 145427 thru 
145430, 145432 thru 145439, 145441 thru 145443, 
145445 thru 145448, 145451 thru 145461, 145463 
thru 145465, 145468 thru 145479, 145481 thru 
145483, 145485 thru 145494, 145496 thru 145498, 
145500 thru 145504, 145506 thru 145515, 145517 
thru 145525, 145527, 145529 thru 145539, 145541 
thru 145547, 145552 thru 145554, 145556 thru 
145585, 145587 thru 145590, 145592 thru 145596, 
145598, 145600 thru 145606, 145608 thru 145619, 
145621 thru 145624, 145626 thru 145636, 145638 
thru 145641, 145643, 145645 thru 145660, 145662 
thru 145669, 145671 thru 145677, 145679 thru 
145685, 145687 thru 145694, 145696 thru 145698, 
145700, 145702, 145703, 145723, 145729, and 
145757, which have not been modified according to 
the previous issue of this bulletin, and are equipped 
with Movable Tail Boom With Two Navigation 
Lights. 
 
 
(2) GROUP 2 
MODEL SN 
EMB-145( ) and EMB-135( ) 145004 thru 145208, 14521 0 thru 145360, 145365 
thru 145411, 145413 thru 145425, 145427 thru 
145430, 145432 thru 145439, 145441 thru 145443, 
145445 thru 145448, 145451 thru 145461, 145463 
thru 145465, 145468 thru 145479, 145481 thru 
145483, 145485 thru 145494, 145496 thru 145498, 
145500 thru 145504, 145506 thru 145515, 145517 
thru 145525, 145527, 145529 thru 145539, 145541 
thru 145547, 145552 thru 145554, 145556 thru 
145585, 145587 thru 145590, 145592 thru 145596, 
145598, 145600 thru 145606, 145608 thru 145619, 
145621 thru 145624, 145626 thru 145636, 145638 
thru 145641, 145643, 145645 thru 145660, 145662 
thru 145669, 145671 thru 145677, 145679 thru

### Page 6

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 4 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
MODEL SN 
145685, 145687 thru 145694, 145696 thru 145698, 
145700, 145702, 145703, 145723, 145729, and 
145757, which have not been modified according to 
the previous issue of this bulletin, and are equipped 
with Movable Tail Boom With Four Navigation 
Lights. 
 
 
 
(3) GROUP 3 
MODEL SN 
EMB-145( ) and EMB-135( ) 145002 thru 145362, 14536 4 thru 145411, 145413 
thru 145461, 145463 thru 145483, 145485 thru 
145494, 145496 thru 145504, 145506 thru 145515, 
145517 thru 145527, 145529 thru 145539, 145541 
thru 145548, 145550 thru 145554, 145556 thru 
145585, 145587 thru 145589, 145592 thru 145624, 
145626 thru 145636, 145638 thru 145641, 145647, 
145648, 145651 thru 145653, 145656, 145661, 
145663, 145665, 145667 thru 145671, 145673, 
145676, 145679, 145680, 145682, 145685, 
145687, 145691, 145692, 145694 thru 145696, 
145698, 145701, 145702, 145707, 145709, 
145710, 145713, 145715, 145716, 145720, 145722 
thru 145726, 145728, 145729, 145734, 145736 
thru 145738, 145740, 145742 thru 145744, 
145747, 145748, 145750, 145752, 145754, 
145755, 145757, 145760, 145762 thru 145769, 
145771, 145773, 145774, 145776 thru 145779, 
145781, 145783 thru 145785, 145788, 145790, 
145793 thru 145795, 145797, 145798, 145800, 
14500801, 14500803, 14500804, 14500806, 
14500807, 14500810, 14500812 thru 14500816, 
14500820 thru 14500824, 14500826 thru 
14500830, 14500833, 14500835 thru 14500839, 
14500842, 14500843, 14500845 thru 14500849, 
14500852, 14500853, 14500855 thru 14500858, 
14500860 thru 14500862, 14500865, 14500866, 
14500868 thru 14500871, 14500874, 14500875, 
14500877, 14500879, 14500882, 14500883, 
14500885 thru 14500887, 14500890, 14500892 
thru 14500895, 14500897 thru 14500899,

### Page 7

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 5 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
MODEL SN 
14500902, 14500905 thru 14500908, 14500911, 
14500912, 14500915, 14500918, 14500920, 
14500921, 14500923, 14500926, 14500928, 
14500930, 14500932, 14500949, 14500958, 
14500977, 14500984, 14500987, 14500992, 
14500996, 14501000, 14501005, 14501009, 
14501013, 14501019, 14501022, 14501024, 
14501027, 14501030, 14501033, 14501036, 
14501040, 14501043, 14501047, 14501050, 
14501053, 14501056, 14501059, 14501063, 
14501065, 14501068, 14501070, 14501073, 
14501077, 14501084, 14501124, and 14501125 
which have already been modified according to the 
previous issue of this bulletin or have been factor y-
incorporated, and are equipped with Movable Tail 
Boom With Two Navigation Lights. 
 
 
 
(4) GROUP 4 
MODEL SN 
EMB-145( ) and EMB-135( ) 145002 thru 145362, 14536 4 thru 145411, 145413 
thru 145461, 145463 thru 145483, 145485 thru 
145494, 145496 thru 145504, 145506 thru 145515, 
145517 thru 145527, 145529 thru 145539, 145541 
thru 145548, 145550 thru 145554, 145556 thru 
145585, 145587 thru 145589, 145592 thru 145624, 
145626 thru 145636, 145638 thru 145641, 145647, 
145648, 145651 thru 145653, 145656, 145661, 
145663, 145665, 145667 thru 145671, 145673, 
145676, 145679, 145680, 145682, 145685, 
145687, 145691, 145692, 145694 thru 145696, 
145698, 145701, 145702, 145707, 145709, 
145710, 145713, 145715, 145716, 145720, 145722 
thru 145726, 145728, 145729, 145734, 145736 
thru 145738, 145740, 145742 thru 145744, 
145747, 145748, 145750, 145752, 145754, 
145755, 145757, 145760, 145762 thru 145769, 
145771, 145773, 145774, 145776 thru 145779, 
145781, 145783 thru 145785, 145788, 145790, 
145793 thru 145795, 145797, 145798, 145800, 
14500801, 14500803, 14500804, 14500806,

### Page 8

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 6 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
MODEL SN 
14500807, 14500810, 14500812 thru 14500816, 
14500820 thru 14500824, 14500826 thru 
14500830, 14500833, 14500835 thru 14500839, 
14500842, 14500843, 14500845 thru 14500849, 
14500852, 14500853, 14500855 thru 14500858, 
14500860 thru 14500862, 14500865, 14500866, 
14500868 thru 14500871, 14500874, 14500875, 
14500877, 14500879, 14500882, 14500883, 
14500885 thru 14500887, 14500890, 14500892 
thru 14500895, 14500897 thru 14500899, 
14500902, 14500905 thru 14500908, 14500911, 
14500912, 14500915, 14500918, 14500920, 
14500921, 14500923, 14500926, 14500928, 
14500930, 14500932, 14500949, 14500958, 
14500977, 14500984, 14500987, 14500992, 
14500996, 14501000, 14501005, 14501009, 
14501013, 14501019, 14501022, 14501024, 
14501027, 14501030, 14501033, 14501036, 
14501040, 14501043, 14501047, 14501050, 
14501053, 14501056, 14501059, 14501063, 
14501065, 14501068, 14501070, 14501073, 
14501077, 14501084, 14501124, and 14501125 
which have already been modified according to the 
previous issue of this bulletin or have been factor y-
incorporated, and are equipped with Movable Tail 
Boom With Four Navigation Lights. 
 
 
 
B. CONCURRENT REQUIREMENTS 
The accomplishment of Service Bulletin SB145-33-003 2 in its original Issue or a 
subsequent approved revision is required prior to the accomplishment of this Service 
Bulletin.

### Page 9

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 7 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
C. REASON 
 
1. HISTORY 
During a troubleshooting following a reported of el evator control restriction the 
maintenance personnel found a frame loosed from the  tail boom jamming a 
bellcrank. Further investigation revealed that this  damage was caused by a 
lightning-strike that hit the tail boom area. 
 
 
2. OBJECTIVE 
To install lightning diverters in the tail boom, re place the hood assembly with a 
new improved one and reroute the electrical harness. 
 
 
3. EXPECTED BENEFITS 
To improve the electrical path for the lightning cu rrent, thereby minimizing 
lightning direct effects on the aircraft. 
 
 
4. REVISION HISTORY 
 
(a)  Revision 01: To change the Service Bulletin ef fectivity. 
(b)  Revision 02: To change the Service Bulletin ef fectivity. 
(c)  Revision 03: To change the Service Bulletin ef fectivity and substitute a task 
number. 
(d)  Revision 04: To include aircraft SN 145374, 14 5671, 145729, and 145757 in 
the Service Bulletin effectivity. 
(e)  Revision 05: To modify Service Bulletin soluti on, include additional action as 
PART II and also divided SB in 4 GROUPS.

### Page 10

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 8 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
D. DESCRIPTION 
NOTE : The modification presented in this bulletin does n ot affect Fatigue Critical 
Structure (FCS). 
 
This Bulletin is divided into 2 PARTS, as follows: 
 
PART I IMPROVEMENT IN LIGHTNING PROTECTION OF TAIL BOOM 
Applicable to: GROUP 1 and GROUP 2. 
 
 
The modification described in PART I of this bullet in consists of the installation of 
metallic diverters, aluminum sheets and improvement s on lights assembly on the tail 
boom rear movable fairing, and also to replace the hood assembly with new one and 
re-route the applicable electrical harness to minimize lightning direct effects. 
 
To do this, it is necessary to remove the rear movable fairing of the tail boom. 
 
 
 
PART II ADDITIONAL ACTION 
Applicable to: GROUP 3 and GROUP 4. 
 
PART II of this bulletin consists of the reworking of metallic diverters, aluminum 
sheets and improvements on lights assembly on the t ail boom rear movable fairing, 
and also to replace the hood assembly with new one and re-route the applicable 
electrical harness to minimize lightning direct effects. 
 
To do this, it is necessary to remove the rear movable fairing of the tail boom. 
 
 
 
E. COMPLIANCE 
(1) APPLICABLE TO PART I 
Embraer recommends that PART I of this bulletin be accomplished up to next C 
check.

### Page 11

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 9 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
(2) APPLICABLE TO PART II 
Embraer recommends that PART II of this bulletin be  accomplished up to next C 
check. 
 
 
 
F. APPROVAL 
The technical aspects of this Service Bulletin are approved by: ANAC – Agência 
Nacional de Aviação Civil. 
 
 
 
G. ESTIMATED MANPOWER 
This estimate is for direct labor only, performed b y 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. 
 
1. APPLICABLE TO PART I  
- Access opening: 1.5 man-hours. 
- Inspection: None. 
- Modification: 5.5 man-hours. 
- Access closure: 1.5 man-hours. 
- Test: 1.0 man-hour. 
 
 
 
2. APPLICABLE TO PART II 
- Access opening: 1.5 man-hours. 
- Inspection: None. 
- Modification: 4.0 man-hours. 
- Access closure: 1.5 man-hours. 
- Test: 1.0 man-hour.

### Page 12

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 10 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
H. WEIGHT AND BALANCE  
1. APPLICABLE TO PART I / aircraft GROUP 1 
(a) EMB-145 aircraft 
- Change in basic weight: + 2.2 lb (+ 1.0 kg). 
- Change in basic moment: + 2,509.55 lb.in (+ 28.97N.m). 
 
(b) EMB-140 aircraft 
- Change in basic weight: + 2.2 lb (+ 1.0 kg). 
- Change in basic moment: + 2387.08 lb.in (+ 27.56 N.m). 
 
 
(c) EMB-135 aircraft 
- Change in basic weight: + 2.2 lb (+ 1.0 kg). 
- Change in basic moment: +2,202.34 lb.in (+ 25.43 N.m). 
 
 
2. APPLICABLE TO PART I / aircraft GROUP 2 
(a) EMB-145 aircraft 
- Change in basic weight: + 2.2 lb (+ 1.0 kg). 
- Change in basic moment: + 2,509.55 lb.in (+ 28.97N.m). 
 
(b) EMB-140 aircraft 
- Change in basic weight: + 2.2 lb (+ 1.0 kg). 
- Change in basic moment: + 2387.08 lb.in (+ 27.56 N.m). 
 
 
(c) EMB-135 aircraft 
- Change in basic weight: + 2.2 lb (+ 1.0 kg). 
- Change in basic moment: +2,202.34 lb.in (+ 25.43 N.m).

### Page 13

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 11 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
3. APPLICABLE TO PART II / aircraft GROUP 3 
None. 
 
 
4. APPLICABLE TO PART II / aircraft GROUP 4 
None. 
 
 
 
I. REFERENCES 
AMM 145/( ) – Aircraft Maintenance Manual – Chapter  20-13-21 – Standard 
Practices - Airframe. 
AMM 145/( ) – Aircraft Maintenance Manual – Chapter  55-36-05 – Stabilizers. 
SRM 145/( ) – Structural Repair Manual – Chapter 51 -20-01 and 51-40-04 – 
Standard Practices and Structures. 
 
 
 
J. AFFECTED PUBLICATIONS 
SRM 145/( ) – Structural Repair Manual – Chapter 55 -00-00 – Stabilizers. 
IPC 145/( ) – Illustrated Parts Catalog – Chapter 5 5-00-00 – Stabilizers. 
AMM 145/( ) – Aircraft Maintenance Manual – Chapter  55-36-00 – Stabilizers.

### Page 14

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 12 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
2. MATERIAL INFORMATION  
A. MATERIAL – PRICE AND AVAILABILITY 
(1) MATERIAL AVAILABLE FROM EMBRAER 
The material below required for the accomplishment of this bulletin will be 
available from Embraer at a reference price shown b elow, subject to confirmation 
upon receipt of orders. 
The parts to be procured mentioned in paragraph 2.C .(2) MATERIAL TO BE 
PROCURED should be ordered as spare from Embraer. 
The estimated delivery date will be provided by Embraer upon request. 
 
When ordering, specify SB 145-55-0030 and Top Kit P N presented in Table 
below, as applicable. 
 
REF TOP KIT PN Unit Price (US$) TOP KIT EFFECTIVITY  
01 BS1455500300501 1,251.36 GROUP 1 
02 BS1455500300502 1,227.84 GROUP 2 
03 BS1455500300503 417.02 GROUP 3 
04 BS1455500300504 393.50 GROUP 4 
 
 
 
(2) MATERIAL AVAILABLE FROM OTHER VENDORS 
None. 
 
 
 
B. INDUSTRY SUPPORT INFORMATION 
None.

### Page 15

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 13 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
C. MATERIAL NECESSARY FOR EACH AIRCRAFT 
When applicable, the use of alternative or similar parts in place of the ones specified 
in the kit is allowable, provided that these alternative or similar parts are approved by 
Embraer as indicated in the related Embraer Technic al Publications or through a 
formal Embraer communication channel. 
The necessary expendable or consumable parts presen ted in the AMM Tasks 
referred to in this bulletin, which are necessary f or its accomplishment, should be 
procured from the operator's inventories or ordered as spares. 
The complementary information, when necessary, is p resented as Notes in the 
respective Table. 
For ordering information and Top Kit effectivity re fer to section “2. A. MATERIAL - 
PRICE AND AVAILABILITY”. 
 
 
(1) TOP KITS AND KITS 
Kit Summary: Top Kit Composition  
Top Kit PN 145-03535-621 145-03536-611 145-54608-60 7 145-54608-609 
BS1455500300501 - 01 01 - 
BS1455500300502 01 - 01 - 
BS1455500300503 - 01 - 01 
BS1455500300504 01 - - 01 
 
 
 
(a) Kit PN 145-03535-621 – Electrical kit for Tail Boom With four Navigation Lights 
NEW PN DESCRIPTION OLD PN QTY  SUP QTY  RQD DISP/  Notes 
145-23046-403 Hood assy 145-23046-401 01 01 3 
H14-04 Nut H14-04 02 02 7 
H14-08 Nut - 02 02 2 
MS24693-C6 Screw - 02 02 2 
MS24694-C6 Screw - 02 02 2 
MS35338-40 Lock washer MS35338-40 02 02 7 
MS35489-8 Grommet MS35489-8 01 01 7 
NAS1149CN832R  Washer - 01 01 2 
NAS1149FN416P  Washer NAS1149FN416P  02 02 7

### Page 16

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 14 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
NEW PN DESCRIPTION OLD PN QTY  SUP QTY  RQD DISP/  Notes 
NAS1149FN832P  Washer - 02 02 7 
NAS1197-4L Washer NAS1197-4L 02 02 7 
NAS1801-08-8 Screw - 01 01 2 
PE21101-3-1CP Screw PE21101−3−2CP  07 07 3 
PE21101-3-2CP Screw - 06 06 2 
PE27019RI5 Clamp, chushion - 03 03 2 
 
 
 
(b) Kit PN 145-03536-611 - Electrical kit for Tail Boom With two Navigation Lights 
NEW PN DESCRIPTION OLD PN QTY  SUP QTY  RQD DISP/  Notes 
145-23046-403 Hood assy 145-23046-401 01 01 3 
H14-04 Nut H14-04 02 02 7 
H14-08 Nut - 02 02 2 
MS24693-C6 Screw - 02 02 2 
MS24694-C6 Screw - 02 02 2 
MS35206-214 Screw MS35206-214 02 02 7 
MS35338-40 Lock washer MS35338-40 04 04 7 
MS35489-8 Grommet MS35489−8 01 01 7 
NAS1149CN832R Washer - 01 01 2 
NAS1149FN416P  Washer NAS1149FN416P  04 04 7 
NAS1149FN832P  Washer - 02 02 2 
NAS1197-4L Washer NAS1197-4L 04 04 7 
NAS1801-08-8 Screw - 01 01 2 
PE21101-3-1CP Screw PE21101−3−2CP  07 07 3 
PE21101-3-2CP Screw - 06 06 2 
PE27019RI5 Clamp, chushion - 03 03 2 
PE88001-5AA8 Jumper assy PE88001−5AA6 02 02 3

### Page 17

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 15 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
(c) Kit PN 145-54608-607 – Rework kit for rear movable fairing 
NEW PN DESCRIPTION OLD PN QTY SUP QTY RQD DISP/ Notes 
145-54611-004 Lightning sheet - 01 01 2 
145-54611-005 Lightning sheet - 01 01 2 
145-54614-003 Lightning diverter - 01 01 2 
145-54614-007 Lightning diverter - 02 02 2 
145-54614-009 Lightning diverter - 01 01 2 
CCR244CS-3-2 Blind rivet csk 100 deg - 75 62 2 
MS20426AD3-4 Solid rivet csk 100 deg - 11 08 2 
MS20426AD3-5 Solid rivet csk 100 deg - 11 08 2 
MS20426AD4-7 Solid rivet csk 100 deg - 04 02 2 
MS21060L3 Nut plate - 30 27 2 
MS21062L3 Nut plate - 05 04 2 
NAS620A5L Washer - 26 20 2 
NAS9301B-4-05  Blind rivet - 02 01 2 
NAS9302B-4-02  Blind rivet csk 100 deg - 02 01 2 
NAS9302B-4-03  Blind rivet csk 100 deg - 24 18 2 
PE21101-3-2CP  Screw - 34 31 2 
PE29051Z-3CH Support assy - 01 01 2 
- Support TW2S6 01 01 5 
- Support MS3340-1-9 01 01 5 
 
 
(d) Kit PN 145-54608-609 - Rework kit for rear movable fairing 
NEW PN DESCRIPTION OLD PN QTY SUP QTY RQD DISP/ Notes 
MS20426AD3-4 Solid rivet csk 100 deg - 11 08 2 
MS20426AD3-5 Solid rivet csk 100 deg - 11 08 2 
MS20426AD4-7 Solid rivet csk 100 deg - 04 02 2 
NAS620A5L Washer - 04 02 2 
NAS9301B-4-05  Blind rivet - 02 01 2 
NAS9302B-4-02  Blind rivet csk 100 deg - 02 01 2 
PE29051Z-3CH Support assy - 01 01 2 
- Support TW2S6 01 01 5 
- Support MS3340-1-9 01 01 5

### Page 18

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 16 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
(2) MATERIAL TO BE PROCURED 
(a) PARTS 
None. 
 
 
(b) CONSUMABLES 
The material below or equivalent, required for the accomplishment of this 
bulletin, should be procured from the operator’s in ventories or from a local 
supplier. 
 
1 Material related to all Top Kits. 
ITEM PN DESCRIPTION QTY DISP/ Notes 
P/S870C-12  Sealant (Spec. MIL-PRF-81733)  AR 6 
PR1440B2  Sealant (Spec. SAE AMS-S-8802)  AR 6 
PR1776M B2 654 SEMKIT  Sealant (Spec. AMS3281) AR 6 
PR1776M B1/2 654 SEMKIT Sealant (Spec. AMS3281) AR 6 
SB496 Cyanoacrylate adhesive (Spec. MEP 09-033) AR 6 
P/S870-B1/2 Sealant (Spec. MIL-PRF-81733) AR 6 
ALODINE 1200S 
Chemical Conversion Compound 
(Spec. MIL-DTL-81706) AR 6 
 
 
 
QUANTITY : AR = As Required 
 
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 
 
 
D. MATERIAL NECESSARY FOR EACH SPARE 
None.

### Page 19

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 17 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
E. REIDENTIFIED PARTS 
The information necessary to modify and/or reidenti fy the parts, when necessary, is 
presented in the referenced Notes. 
 
DESCRIPTION OLD PN NEW PN 
Movable Tail Boom fairing assy 145-03536-401 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-403 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-621 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-623 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-625 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-627 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-629 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-631 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-633 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-635 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-637 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-639 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-641 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-643 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-645 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-647 145-03 536-603 
Movable Tail Boom fairing assy 145-03536-649 145-03 536-603 
Movable Tail Boom fairing assy 145-03535-401 145-03 535-603 
Movable Tail Boom fairing assy 145-03535-403 145-03 535-605 
Movable Tail Boom fairing assy 145-03535-405 145-03 535-413 
Movable Tail Boom fairing assy 145-03535-407 145-03 535-607 
Movable Tail Boom fairing assy 145-03535-409 145-03 535-617 
Movable Tail Boom fairing assy 145-03535-411 145-03 535-415 
Movable Tail Boom fairing 145-21649-407 140-13327-6 01 
Movable Tail Boom fairing 145-21649-413 140-13327-6 01 
Movable Tail Boom fairing 145-21649-415 140-13327-6 01 
Movable Tail Boom fairing 145-21649-417 140-13327-6 01 
Movable Tail Boom fairing 145-21649-419 140-13327-6 01 
Movable Tail Boom fairing 145-40481-401 140-13327-6 01 
Movable Tail Boom fairing 145-40481-403 140-13327-6 01 
Movable Tail Boom fairing 145-40481-405 140-13327-6 01 
Movable Tail Boom fairing 145-48758-401 140-13327-6 01 
Movable Tail Boom fairing 145-48758-403 140-13327-6 01 
Movable Tail Boom fairing 145-54047-401 140-13327-6 01 
Movable Tail Boom fairing 145-54047-403 140-13327-6 01 
Movable Tail Boom fairing 145-54608-401 140-13327-6 01 
Movable Tail Boom fairing 145-54608-403 140-13327-6 01 
Movable Tail Boom fairing 145-54608-405 140-13327-6 01

### Page 20

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 18 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
F. TOOLING – PRICE AND AVAILABILITY 
Whenever required, the tooling presented in the AMM  Tasks referred to in this 
bulletin, should be procured from the operator’s inventories or ordered as spares.

### Page 21

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 19 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
3. ACCOMPLISHMENT INSTRUCTIONS 
 
NOTES : 1) Obey all of the WARNINGS and CAUTIONS included in the referenced 
manuals and procedures. 
2) The Manuals and other documents are referred to by means of acronyms 
or using a simplified form. Refer to section “1. I.  REFERENCES” for a 
more complete definition. 
3) This Service Bulletin effectivity is divided int o 04 aircraft GROUPS 
according to the relevant configuration and the SB itself is divided into 02 
PARTS. The SB PARTS are featured to allow their ind ependent 
accomplishment. 
REFERENCE APPLICATION TABLE 
Aircraft GROUP  SB PART  APPLICABLE FIGURES  
1 I 1 AND 2 
2 I 1 AND 3 
3 II 2 AND 4 
4 II 3 AND 4 
 
 
The steps below outline the general accomplishment instructions. 
The detailed sequence is given as notes in the figure. 
 
A. Make sure that the aircraft is safe for maintena nce. 
B. Remove the rear movable fairing of the tail boom . Refer to the applicable Aircraft 
Maintenance Manual – Chapter 55-36-00 – Stabilizers. 
C. PART I 
a. Rework the movable fairing of the tail boom acco rding Figure 1. 
b. Carry out the electrical modification to the rea r movable fairing according 
Figure 2 (GROUP 1) or Figure 3 (GROUP 2), as applicable.

### Page 22

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 20 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
D. PART II 
a. Rework the movable fairing of the tail boom acco rding Figure 4. 
b. Carry out the electrical modification to the rea r movable fairing according 
Figure 2 (GROUP 3) or Figure 3 (GROUP 4), as applicable.  
E. Reinstall the rear movable fairing of the tail b oom according to the applicable Aircraft 
Maintenance Manual – Chapter 55-36-00 – Stabilizers , and perform the following 
electrical bonding test: 
a. Do the electrical bonding test according to the applicable Aircraft 
Maintenance Manual – Chapter 20 (TASK 20-13-21-700- 801-A) – Standard 
Practices – Airframe. 
NOTE:  Measure the electrical resistance value between th e electrical 
connector P0834 and the primary structure. The maxi mum allowed 
resistance value is 15 miliohms. 
 
F. Paint the reworked area with customer’s color sc heme. Refer to Corrosion 
Prevention Manual, Chapter 51-21-06. 
G. Restore the aircraft to normal. 
H. Enter the accomplishment of this bulletin in the  applicable documents.

### Page 23

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 21 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
1. Position sheets PN 145-54611-004 (RH) and PN 145 -54611-005 (LH) on the rear 
movable fairing and transfer the existing holes fro m fairing to sheet and from sheet 
to fairing, using the dimension shown in view B and G as a guide. 
2. Drill the holes marked in step 1. 
3. Countersink sheets PN 145-54611-004 (RH) and PN 145-54611-005 (LH) to install 
screws and rivets according to the dimensions shown in detail D. 
4. Install nut plate PN MS21062L3 (4 positions) by using rivet PN CCR244CS-3-2  
(2 positions). Refer to details D and H. 
5. Install sheets PN 145-54611-004 (RH) and PN 145- 54611-005 (LH) to the rear 
movable fairing by using rivet PN NAS9302B-4-03 (18  positions) and washer PN 
NAS620A5L (18 positions). Refer to details C and D. 
NOTE : Before installation, apply interface sealant PN P/ S870C-12 (Spec. MIL-
PRF-81733 Type IV Class 12) and fillet sealant PN PR1440B2 (Spec. SAE 
AMS-S-8802 Type II Class B2). Refer to the applicab le Structural Repair 
Manual – Chapter 51-20-01 – Standard Practices and Structures. 
6. Install support PN PE29051Z-3CH to the rear mova ble fairing according to sections 
J-J and K-K, and details L and L1 and the following instructions: 
(a) Remove and discard existing support PN MS3340-1 -9. 
(b) Plug the hole with rivet PN NAS9301B-4-05. 
(c) Position new support PN PE29051Z-3CH to the to the rear movable fairing. 
(d) Transfer, drill and countersink the hole  
(e) Install the support using rivet PN MS20426AD4-7  (2 positions). 
7. Position diverters PN 145-54614-003 (1 position) , PN 145-54614-009 (1 position), 
and PN 145-54614-007 (2 positions) on the rear mova ble fairing, mark and drill 
holes in the fairing using the existing holes of th e diverters and the dimensions 
shown in details C, D, E and F as a guide. 
8. Remove the diverters and install nut plate PN MS 21060L3 (27 positions) to the rear 
movable fairing using rivet PN CCR244CS-3-2 (54 positions). Refer to detail D. 
 
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TAIL BOOM 
(SHEET 01 OF 13)

### Page 24

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 22 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
9. Install diverters PN 145-54614-003 (1 position),  PN 145-54614-009 (1 position), 
and PN 145-54614-007 (2 positions) to the rear mova ble fairing using screw PN 
PE21101-3-2CP (31 positions). Refer to details C, E and F. 
NOTES : (1) Carry out the electrical bonding according to the applicable Aircraft 
Maintenance Manual – Chapter 20 (TASK 20-13-21-910- 801-A) – 
Standard Practices - Airframe. 
(2) Apply fillet sealant PN PR1440B2 (Spec. SAE AMS -S-8802 Type II 
Class B2) and interface sealant PN P/S870C-12 (Spec . MIL-PRF-
81733 Type IV Class 12) except in the surface prepa red for 
electrical bonding shown in the figure. Refer to th e applicable 
Structural Repair Manual – Chapter 51-20-01 – Stand ard Practices 
and Structures. 
10. Remove the existing rivet and enlarge the hole to 25.4 mm, as shown in section P-
P. 
11. Remove and discard the existing electrical supp ort PN TM2S6 by removing its 
attached rivet. Plug the hole with rivet PN NAS9302 B-4-02 and washer PN 
NAS620A5L. Refer to detail Q. 
12. At the stabilizer structure, remove and retain nut plate PN MS21062L3 (6 positions) 
and PN MS21060L3 (2 positions) and discard the atta ching rivets. Refer to detail T 
(PRE MOD) and Structural Repair Manual – Chapter 51 -40-02 – Standard 
Procedures. 
13. Reinstall the removed nut plate PN MS21062L3 (6  positions) and PN MS21060L3 
(2 positions) using rivets PN MS20426AD3-5 (8 posit ions) and PN MS20426AD3-4 
(8 positions) according to detail T (POST MOD). Ref er to Structural Repair Manual 
– Chapter 51-40-02 and 51-40-03 – Standard Procedures. 
14. Apply a fillet of sealant PN PR1776M B2 654 SEM KIT to the contour of the part. 
Refer to detail U. 
 
 
 
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TAIL BOOM 
(SHEET 02 OF 13)

### Page 25

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 23 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
15. With a permanent marker pen or a rubber stamp, re-identify the movable Tail Boom 
fairing according to Table, below: 
 
REIDENTIFICATION TABLE  
FROM TO 
145-21649-407 140-13327-601 
145-21649-413 140-13327-601 
145-21649-415 140-13327-601 
145-21649-417 140-13327-601 
145-21649-419 140-13327-601 
145-40481-401 140-13327-601 
145-40481-403 140-13327-601 
145-40481-405 140-13327-601 
145-48758-401 140-13327-601 
145-48758-403 140-13327-601 
145-54047-401 140-13327-601 
145-54047-403 140-13327-601 
145-54608-401 140-13327-601 
145-54608-403 140-13327-601 
145-54608-405 140-13327-601 
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TAIL BOOM 
(SHEET 03 OF 13)

### Page 26

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 24 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
A
ZONE
321
C
D
E
DET. A
F
REAR FIXED
FAIRING
DET. B
B
T
EM145SB550346A.DGN  
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL BOOM 
(SHEET 04 OF 13)

### Page 27

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 25 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
SHEET
PN 145−54611−004 (RH)
(INSTALL)
2
1
1
1
1
APPLY INTERFACE SEALANT PN P/S870C−12 AND FILLET SEALANT PN PR1440B2.
REAR MOVABLE
FAIRING
(REF.)
1 5
7
7
5
DIVERTER
PN 145−54614−007
(INSTALL)
7
DIVERTER
PN 145−54614−003
(INSTALL)
DET. C
1
1
DIVERTER
PN 145−54614−007
(INSTALL)
17
DIVERTER
PN 145−54614−009
(INSTALL)
SHEET
PN 145−54611−005 (LH)
(INSTALL)
EM145SB550347A.DGN  
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL BOOM 
(SHEET 05 OF 13)

### Page 28

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 26 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
Y
0.0
SCREW
PN PE21101−3−4CP
(4 POSITIONS)
(INSTALL)
SCREW
PN PE21101−3−4CP
(4 POSITIONS)
(INSTALL) 10.0
RIVET
PN NAS9302B−4−03
(9 POSITIONS)
WASHER
PN NAS620A5L
(9 POSITIONS)
(INSTALL)
RIVET
PN NAS9302B−4−03
(9 POSITIONS)
WASHER
PN NAS620A5L
(9 POSITIONS)
(INSTALL)
4
2 5
4
2 5
2 3 5
2 3 5
H
DIMENSION IN mm
DET. G
Ø5.1
Ø5.3
1.3
RIVET
PN CCR244CS−3−2
(2 POSITIONS)
(INSTALL)
8 8
9
DET. H
TYPICAL
DET. D
G
G
NUT PLATE
PN MS21060L3
(14 POSITIONS)
RIVET
PN CCR244CS−3−2
(2 POSITIONS PER NUT PLATE)
(INSTALL)
EM145SB550348A.DGN
8
8
NUT PLATE
PN MS21062L3
(2 POSITIONS)
(INSTALL)
NUT PLATE
PN MS21060L3
(13 POSITIONS)
RIVET
PN CCR244CS−3−2
(2 POSITIONS PER NUT PLATE)
(INSTALL)
NUT PLATE
PN MS21062L3
(2 POSITIONS)
(INSTALL)
NUT PLATE
PN MS21060L3
(INSTALL)
SCREW
PN PE21101−3−2CP
(INSTALL)130°
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL BOOM 
(SHEET 06 OF 13)

### Page 29

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 27 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
ZV
3755.0
ZV
3604.5
X
28135.9
SPAR III
X
28644.9
X
29075.0
VT
100%
X
29786.4
K K
P P
N N
S S
DET. E
9
R R
Q
EM145SB550349A.DGN
X
29075.0
VT
100%
X
29786.4
33.0 100.0
DET. E1
E1
DO NOT APPLY SEALANT IN THIS AREA.6
6
SCREW
PN PE21101−3−2CP
(13 POSITIONS)
(INSTALL)
SCREW
PN PE21101−3−2−CP
(2 POSITIONS)
(INSTALL TOGETHER 
WITH THE HOOD ASSY)
9
 
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL BOOM 
(SHEET 07 OF 13)

### Page 30

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 28 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
ZV
3755.0
ZV
3604.5
X
28135.9
SPAR III
X
28644.9
X
29075.0
VT
100%
X
29786.4
9
X
29075.0
VT
100%
X
29786.4
100.0
DET. F1
F1
DO NOT APPLY SEALANT IN THIS AREA.6
6
EM145SB550355A.DGN
DET. F
SCREW
PN PE21101−3−2CP
(14 POSITIONS)
(INSTALL)
SCREW
PN PE21101−3−2−CP
(2 POSITIONS)
(INSTALL TOGETHER 
WITH THE HOOD ASSY)
9
S S
DIMENSIONS IN MM
 
 
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL BOOM 
(SHEET 08 OF 13)

### Page 31

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 29 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
Y
0.0
ZV
3755.0
Y
0.0
ZV
3755.0
HARNESS SUPPORT
PN MS3340−1−9
EXISTING RIVET
(REMOVE AND DISCARD)
6
6
4
NUT PLATE
PN MS21062L3
(4 POSITIONS)
(INSTALL)
RIVET
PN NAS9301B−4−05
WASHER
PN NAS620A5L
(INSTALL)
EM145SB550350A.DGN
SECTION J−J
(POST MOD)
SECTION J−J
(PRE MOD)
KM
 
 
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL BOOM 
(SHEET 09 OF 13)

### Page 32

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 30 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
DIVERTER
(REF.)
SHEET
(REF.)
REAR MOVABLE
FAIRING 
(REF.)
NUT PLATE
(REF.)
DET. M
TYPICAL
SECTION N−N
1
Ø6.3
Ø6.1
DIMENSIONS IN MM
SHEET
(REF.)
REAR MOVABLE
FAIRING 
(REF.)
Ø3.4
Ø3.2
1.2
SUPPORT
PN PE29051Z−3CH
(1 POSITION)
RIVET
PN MS20426AD4−7
(2 POSITIONS)
(INSTALL)
6
SHEET
(REF.)
SUPPORT
PN PE29051Z−3CH
(1 POSITION)
RIVET
PN MS20426AD4−7
(2 POSITIONS)
(INSTALL)
RIVET
PN CCR244CS−3−2
(2 POSITIONS)
(INSTALL)
EM145SB550351A.DGN
6
141°
86°
DET. K
L
DET. L
100°
90°
 
 
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL BOOM 
(SHEET 10 OF 13)

### Page 33

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 31 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
PRE − MOD
HARNESS SUPPORT
PN TM2S6
EXISTING RIVET
(REMOVE AND DISCARD)
RIVET
PN NAS9302B−4−02
WASHER
PN NAS620A5L
(INSTALL)
REMOVE THE EXISTING RIVET AND ENLARGE THE HOLE TO DIAMETER 25.4 MM
3
3
Y
0.0
ZV
3755.0
POST − MOD
10
11
11
DET. Q DET. Q
SECTION P−P
EXISTING RIVET
(REMOVE AND DISCARD
ENLARGE THE HOLE)
EM145SB550352A.DGN  
 
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL BOOM 
(SHEET 11 OF 13)

### Page 34

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 32 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
2
2
100°
Ø 8.5
2
100°
Ø 8.5
SECTION R−R
DIMENSION IN mm
SECTION S−S
TYPICAL
APPLY ALODYNE ON THE COUNTERSINK AREA FOR BONDING.
(LH SIDE SHOWN,
RH SIDE OPPOSITE)
EM145SB550353A.DGN
4.0 ± 0.1
4.6 ± 0.1
 
 
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL BOOM 
(SHEET 12 OF 13)

### Page 35

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 33 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
(PRE−MOD)
1 APPLY A FILLET OF SEALANT PN PR1776M B2 654 SEMKIT TO THE CONTOUR OF THE PART.
(POST−MOD)
U
DET. U
1
DET. T
DET. T
EM145SB550354A.DGN
SUPPORT
(APPLY SEALANT)
14
Y
0.0
YH
30.0
YH
−30.0
1
1
1
1
NUT PLATE
PN MS21060L3
(RETAIN)
NUT PLATE
PN MS21060L3
(RETAIN)
NUT PLATE
PN MS21062L3
(3 POSITIONS)
(RETAIN)
NUT PLATE
PN MS21062L3
(3 POSITIONS)
(RETAIN)
13
13
13
13
13NUT PLATE
PN MS21062L3
(2 POSITIONS)
(REINSTALL)
RIVET
PN MS20426AD3−4
(4 POSITIONS)
(INSTALL)
NUT PLATE
PN MS21062L3
(REINSTALL)
RIVET
PN MS20426AD3−5
(2 POSITIONS)
(INSTALL)
NUT PLATE
PN MS21060L3
(REINSTALL)
RIVET
PN MS20426AD3−5
(2 POSITIONS)
(INSTALL)
13
NUT PLATE
PN MS21060L3
(REINSTALL)
RIVET
PN MS20426AD3−5
(2 POSITIONS)
(INSTALL)
NUT PLATE
PN MS21062L3
(REINSTALL)
RIVET
PN MS20426AD3−5
(2 POSITIONS)
(INSTALL)
NUT PLATE
PN MS21062L3
(2 POSITIONS)
(REINSTALL)
RIVET
PN MS20426AD3−4
(4 POSITIONS)
(INSTALL)
 
 
 
 
FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL BOOM 
(SHEET 13 OF 13)

### Page 36

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 34 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
1. Remove and discard hood assy PN 145-23046-401 by  removing screw PN 
PE21101-3-2CP (9 positions). Refer to detail B. 
2. Disconnect electrical connector P0707, P0708, an d P0715. Refer to detail B (PRE 
MOD). 
3. Remove and discard grommet PN MS35489-8. Refer t o detail A (PRE MOD).  
4. Remove and discard bonding jumper PN PE88001-5AA 6 (2 positions) by removing 
screw PN MS35206-216 and PN MS35206-214, washer PN NAS1149FN416P  
(2 positions per bonding jumper), PN MS35338-40 (2 positions per bonding jumper), 
and PN NAS1197-4L (3 positions per bonding jumper), and nut PN H14-04. Refer to 
detail B (PRE MOD) and section C-C (PRE MOD). 
5. Reroute electrical harness W308 and install clam p PN PE27019RI5 with screw PN 
NAS1801-08-8 and washer PN NAS1149CN832R, and clamp  PN PE27019RI5 with 
screw PN MS24694-C6, washer PN NAS1149FN832P, and nut PN H14-08. Refer to 
Detail A (Post-Mod). 
6. Install grommet PN MS35489-8 with cyanoacrylate adhesive PN SB496. Fill gaps 
and free spaces with sealant PN PR1776M B1/2 654 SE MKIT (Spec AMS 3281, 
class B), or similar. Refer to detail D. 
7. Install new bonding jumper PN PE88001-5AA8 using  screw PN MS35206-214 and 
PN MS24693-C6, washer PN MS35338-40 (2 positions pe r bonding jumper), PN 
NAS1149FN416P (2 positions per bonding jumper), and  PN NAS1197-4L (2 
positions per bonding Jumper), and nut PN H14-04. Refer to detail B, and section D-
D (PRE MOD) and E-E. 
NOTE : Carry out the electrical bonding procedure, method 3. Refer to the 
applicable Aircraft Maintenance Manual - Chapter 20 -13-21 - Standard 
Practices - Airframe.  
8. Connect electrical connector P0707, P0708, and P 0715. Refer to detail B (POST 
MOD). 
 
 
- APPLICABLE TO GROUP 1 AND GROUP 3 
 
FIGURE 2: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 01 OF 09)

### Page 37

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 35 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
9. Install hood assy PN 145-23046-403 between diver ters and fairing with screw PN 
PE21101-3-1CP (7 positions) and PN PE21101-3-2CP (6  positions). Refer to detail 
B (POST MOD) and section F-F. 
NOTES : (1) Carry out the electrical bonding procedure, method 3. Refer to the 
applicable Aircraft Maintenance Manual - Chapter 20 -13-21 - 
Standard Practices - Airframe. 
(2) Apply aerodynamic sealant P/S870-B1/2 along the  contour of the 
hood assy. Refer to the applicable Structural Repair Manual - Chapter 
51-20-01 – Standard Practices and Structures - General. 
10. Complete the application of fillet sealant PN P R1440B2 (Spec. SAE AMS-S-8802 
Type I Class B2) to the lightning diverter (4 posit ions). Refer to the applicable 
Structural Repair Manual – Chapter 51-20-01 – Stand ard Practices and Structures. 
Refer to detail A (POST MOD). 
11. Measure the electrical resistance value between  the lightning diverters and the 
primary structure. The maximum allowed resistance v alue is 10 miliohms. Refer to 
the applicable Aircraft Maintenance Manual - Chapte r 20-13-21 (TASK 20-13-21-
700-801- A) - Maintenance Practices. Refer detail A (POST MOD). 
12. Measure the electrical resistance value between  the static discharger and the 
primary structure. The allowed resistance value is from 6 megaohms to 150 
megaohms. Refer to the applicable Aircraft Maintena nce Manual - Chapter 20-13-
21 (TASK 20-13-21-700-801- A) - Maintenance Practic es. Refer detail B (POST 
MOD). 
13. Measure the electrical resistance value between  the hood belt and the primary 
structure. The maximum allowed resistance value is 10 miliohms. Refer to the 
applicable Aircraft Maintenance Manual - Chapter 20 -13-21 (TASK 20-13-21-700-
801- A) - Maintenance Practices. Refer detail B (POST MOD). 
14. With a permanent marker pen or a rubber stamp, reidentify the movable Tail Boom 
fairing according to Table, as follows: 
 
 
 
 
 
- APPLICABLE TO GROUP 1 AND GROUP 3 
 
FIGURE 2: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 02 OF 09)

### Page 38

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 36 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
REIDENTIFICATION TABLE 
FROM TO 
145-03536-401  
145-03536-403  
145-03536-621  
145-03536-623  
145-03536-625  
145-03536-627  
145-03536-629  
145-03536-631  
145-03536-633  
145-03536-635  
145-03536-637  
145-03536-639  
145-03536-641  
145-03536-643  
145-03536-645  
145-03536-647  
145-03536-649  
145-03536-603  
 
 
 
 
- APPLICABLE TO GROUP 1 AND GROUP 3 
 
FIGURE 2: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 03 OF 09)

### Page 39

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 37 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
A
ZONES
223
224
PRE − MOD
DET. A
CONNECTOR
P0708
(DISCONNECT)
CONNECTOR
P0707
(DISCONNECT)
CONNECTOR
P0715
(DISCONNECT)
2
2
2
GROMMET
PN MS35489−8
(REMOVE AND DISCARD)
3ELECTRICALHARNESS W308
(REF.)
DET. B
B
C
C
1
HOOD ASSY
PN 145−23046−401
(REMOVE AND DISCARD)
1
EM145SB550326A.DGN
SCREW
PN PE21101−3−2CP
(9 POSITIONS)
(REMOVE AND DISCARD)
CONNECTOR
P0834
(REF.)
PRE − MOD
 
 
- APPLICABLE TO GROUP 1 AND GROUP 3 
 
FIGURE 2: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 04 OF 09)

### Page 40

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 38 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
BONDING JUMPER
PN PE88001−5AA6
(REMOVE AND DISCARD)
4
WASHER
PN NAS1149FN416P
(REMOVE AND DISCARD)
WASHER
PN MS35338−40
(REMOVE AND DISCARD)
SCREW
PN MS35206−216
(REMOVE AND DISCARD)
SCREW
PN MS35206−214
(REMOVE AND DISCARD)
WASHER
PN MS35338−40
(REMOVE AND DISCARD)
WASHER
PN NAS1149FN416P
(REMOVE AND DISCARD)
WASHER
PN NAS1197−4L
(REMOVE AND DISCARD)
NUT
PN H14−04
(REMOVE AND DISCARD)
WASHER
PN NAS1197−4L
(REMOVE AND DISCARD)
C−C
TYPICAL
PRE − MOD
4
4
4
4
4
4
4
4
4
EM145SB550327A.DGN  
 
- APPLICABLE TO GROUP 1 AND GROUP 3 
 
FIGURE 2: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 05 OF 09)

### Page 41

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 39 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
A
ZONES
223
224
DET. A
1
2
APPLY CYANOACRYLATE ADHESIVE PN SB496, OR SIMILAR.
FILL GAPS AND FREE SPACES WITH SEALANT PN PR1776MB1/2, OR SIMILAR.
10 11
5
MOVABLE TAIL BOOM FAIRING
(REIDENTIFY)
W308
(REF.)
CUT LINE
GROMMET
PN MS35489−8
(INSTALL)
1 2
EM145SB550328A.DGN
LIGHTNING DIVERTER
(4 POSITIONS)
(APPLY FILLET SEALANT)
(MEASURE THE ELECTRICAL
RESISTANCE)
6
PRIMARY
STRUCTURE
(REF.)
H
G
D
B
DET. D
F
F
POST − MOD
ELECTRICAL HARNESS
W308
(REROUTE)
14
CONNECTOR
P0834
(REF.)
 
 
- APPLICABLE TO GROUP 1 AND GROUP 3 
 
FIGURE 2: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 06 OF 09)

### Page 42

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 40 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
3
4
ELECTRICAL BONDING (METHOD 3)
APPLY AERODYNAMIC SEALANT PN P/S870B−1/2
9 3 4
HOOD ASSY
PN 145−23046−403
(INSTALL)
9
9
STATIC DISCHARGER
(MEASURE THE ELECTRICAL
RESISTANCE)
CONNECTOR
P0708
(INSTALL)
CONNECTOR
P0707
(INSTALL)
CONNECTOR
P0715
(INSTALL)
8
8 8
EM145SB550329A.DGN
SCREW
PN PE21101−3−1CP
(7 POSITIONS)
(INSTALL)
SCREW
PN PE21101−3−2CP
(6 POSITIONS)
(INSTALL) HOOD BELT
(MEASURE THE ELECTRICAL
RESISTANCE)
C
C
DET. B
POST − MOD
12
13
 
 
- APPLICABLE TO GROUP 1 AND GROUP 3 
 
FIGURE 2: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 07 OF 09)

### Page 43

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 41 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
TYPICAL
E
E
BONDING JUMPER
PN PE88001−5AA8
(INSTALL)
3
WASHER
PN NAS1197−4L
(INSTALL)
7WASHER
PN NAS1149FN416P
(INSTALL)
7
WASHER
PN MS35338−40
INSTALL)
7
SCREW
PN MS35206−214
(INSTALL)
7
7
WASHER
PN NAS1149FN416P
(INSTALL)
WASHER
PN NAS1197−4L
(INSTALL)
7
SCREW
PN MS24693−C6
(INSTALL)
7
7
NUT
PN H14−04
(INSTALL)
7
WASHER
PN MS35338−40
(INSTALL)
E−E
7
ELECTRICAL BONDING (METHOD 3)3
EM145SB550330A.DGN
POST − MOD
C−C
 
 
- APPLICABLE TO GROUP 1 AND GROUP 3 
 
FIGURE 2: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 08 OF 09)

### Page 44

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 42 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
EM145SB550357A.DGN
HOOD ASSY
REAR MOVABLE
FAIRING
(REF.)
DIVERTERS
(REF.)
CLAMP 
PN PE27019R15
SCREW
PN MS24694−C6
WASHER
PN NAS1149FN832P
NUT
PN H14−08
(02 POSITIONS)
(INSTALL)
5
5
CLAMP 
PN PE27019R15
SCREW
PN NAS1801−08−8
WASHER
PN NAS1149CN832R
(INSTALL)DET. H
DET. G
(TYPICAL)
SECTION F−F
NUT PLATE
(REF.)
 
 
 
- APPLICABLE TO GROUP 1 AND GROUP 3 
 
FIGURE 2: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 09 OF 09)

### Page 45

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 43 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
1. Remove and discard hood assy PN 145-23046-401 by  removing screw PN 
PE21101-3-2CP (9 positions). Refer to detail B (PRE MOD). 
2. Disconnect electrical connector P0715 and splice s SP7654, SP7655, and SP7656. 
Refer to detail B (PRE MOD). 
3. Remove and discard grommet PN MS35489-8. Refer t o detail A (PRE MOD). 
4. Remove the bonding jumber (2 positions) attachin g parts by removing screw  
PN MS35206-216, washer PN NAS1149FN416P, PN MS35338 -40, and  
PN NAS1197-4L (2 positions per bonding jumper), and  nut PN H14-04. Refer to 
SECTION C-C (PRE MOD). 
5. Reroute electrical harness W308 and install clam p PN PE27019RI5 with screw PN 
NAS1801-08-8 and washer PN NAS1149CN832R ,and clamp  PN PE27019RI5 with 
screw PN MS24694-C6, washer PN NAS1149FN832P, and nut PN H14-08. Refer to 
Details A (Post-Mod), G and H. 
6. Install grommet PN MS35489-8 with cyanoacrylate adhesive PN SB496. Fill gaps 
and free spaces with sealant PN PR1776M B1/2 654 SE MKIT (Spec AMS 3281, 
class B), or similar. Refer to detail D. 
7. Install the bonding jumber (2 positions) attachi ng parts using screw PN MS24693-
C6, washer PN MS35338-40, PN NAS1149FN416P, and PN NAS1197-4L, and nut 
PN H14-04. Refer to sections C-C and E-E. 
NOTE : Carry out the electrical bonding procedure, method 3. Refer to the 
applicable Aircraft Maintenance Manual - Chapter 20 -13-21 - Standard 
Practices - Airframe.  
8. Connect electrical connector P0715 and splices S P7654, SP7655, and SP7656. 
Refer to detail B (POST MOD). 
 
 
 
 
 
 
 
 
 
 
 
 
- APPLICABLE TO GROUP 2 AND GROUP 4 
 
FIGURE 3: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 01 OF 09)

### Page 46

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 44 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
9. Install hood assy PN 145-23046-403 between diver ters and fairing with screw PN 
PE21101-3-1CP (7 positions) and PN PE21101-3-2CP (6  positions). Refer to detail 
B (POST MOD) and section F-F. 
NOTES : (1)  Carry out the electrical bonding procedure, method 3. Refer to the 
applicable Aircraft Maintenance Manual - Chapter 20 -13-21 - 
Standard Practices - Airframe. 
 (2) Apply aerodynamic sealant P/S870-B1/2 along th e contour of the 
hood assy. Refer to the applicable Structural Repai r Manual - 
Chapter 51-20-01 – Standard Practices and Structures - General. 
 
10. Complete the application of fillet sealant PN P R1440B2 (Spec. SAE AMS-S-8802 
Type I Class B2) to the lightning diverter (4 posit ions). Refer to the applicable 
Structural Repair Manual – Chapter 51-20-01 – Stand ard Practices and Structures. 
Refer to detail A (POST MOD). 
11. Measure the electrical resistance value between  the lightning diverters and the 
primary structure. The maximum allowed resistance v alue is 10 miliohms. Refer to 
the applicable Aircraft Maintenance Manual - Chapte r 20-13-21 (TASK 20-13-21-
700-801- A) - Maintenance Practices and detail A (POST MOD). 
12. Measure the electrical resistance value between  the static discharger and the 
primary structure. The allowed resistance value is from 6 mega ohms to 150 mega 
ohms. Refer to the applicable Aircraft Maintenance Manual - Chapter 20-13-21 
(TASK 20-13-21-700-801- A) - Maintenance Practices and detail A (POST MOD). 
13. Measure the electrical resistance value between  the hood belt and the primary 
structure. The maximum allowed resistance value is 10 miliohms. Refer to the 
applicable Aircraft Maintenance Manual - Chapter 20 -13-21 (TASK 20-13-21-700-
801- A) - Maintenance Practices and detail A (POST MOD). 
14.  With a permanent marker pen or a rubber stamp,  reidentify the movable Tail Boom 
fairing according to Table, as follows: 
 
 
 
 
 
 
 
 
 
- APPLICABLE TO GROUP 2 AND GROUP 4 
 
FIGURE 3: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 02 OF 09)

### Page 47

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 45 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
REIDENTIFICATION TABLE 
FROM TO 
145-03535-401  145-03535-603  
145-03535-403  145-03535-605  
145-03535-405  145-03535-413  
145-03535-407  145-03535-607  
145-03535-409  145-03535-617  
145-03535-411  145-03535-415  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
- APPLICABLE TO GROUP 2 AND GROUP 4 
 
FIGURE 3: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 03 OF 09)

### Page 48

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 46 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
EM145SB550331A.DGN
PRE − MOD
DET. A
2
2
3
DET. B
B
C
C
1
HOOD ASSY
PN 145−23046−401
(REMOVE AND DISCARD)
1
CONNECTOR
P0715
(DISCONNECT)
SPLICE
SP7656
(DISCONNECT)
2
SPLICE
SP7654
(DISCONNECT)
2
SPLICE
SP7655
(DISCONNECT)
ELECTRICAL
HARNESS W308
(REF.)
GROMMET
PN MS35489−8
(REMOVE AND DISCARD)
SCREW
PN PE21101−3−2CP
(9 POSITIONS)
(REMOVE AND DISCARD)
A
ZONES
223
224
CONNECTOR
P0834
(REF.)
PRE − MOD  
 
- APPLICABLE TO GROUP 2 AND GROUP 4 
 
FIGURE 3: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 04 OF 09)

### Page 49

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 47 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
NUT
PN H14−04
(REMOVE AND DISCARD)
C−C
TYPICAL
PRE − MOD
4
4
BONDING JUMPER
(REF.)
WASHER
PN NAS1197−4L
(REMOVE AND DISCARD)
SCREW
PN MS35206−216
(REMOVE AND DISCARD)
4
4
WASHER
PN MS35338−40
(REMOVE AND DISCARD)
4
WASHER
PN NAS1149FN416P
(REMOVE AND DISCARD)
EM145SB550332A.DGN  
 
- APPLICABLE TO GROUP 2 AND GROUP 4 
 
 
FIGURE 3: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 05 OF 09)

### Page 50

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 48 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
A
ZONES
223
224
DET. A
1
2
APPLY CYANOACRYLATE ADHESIVE PN SB496, OR SIMILAR.
FILL GAPS AND FREE SPACES WITH SEALANT PN PR1776MB1/2, OR SIMILAR.
10 11
5
MOVABLE TAIL BOOM FAIRING
(REIDENTIFY)
W308
(REF.)
CUT LINE
GROMMET
PN MS35489−8
(INSTALL)
1 2
LIGHTNING DIVERTER
(4 POSITIONS)
(APPLY FILLET SEALANT)
(MEASURE THE ELECTRICAL
RESISTANCE)
6
EM145SB550333A.DGN
POST − MOD
PRIMARY
STRUCTURE
(REF.)
D
B
F
F
DET. D
H
G
ELECTRICAL HARNESS
W308
(REROUTE)
14
CONNECTOR
P0834
(REF.)
 
 
- APPLICABLE TO GROUP 2 AND GROUP 4 
 
FIGURE 3: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 06 OF 09)

### Page 51

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 49 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
3
4
ELECTRICAL BONDING (METHOD 3)
APPLY AERODYNAMIC SEALANT PN P/S870B−1/2
9 3 4
HOOD ASSY
PN 145−23046−403
(INSTALL)
9
9
STATIC DISCHARGER
(MEASURE THE ELECTRICAL
RESISTANCE)
8
8
SPLICE
SP7655
(CONNECT)
8
SPLICE
SP7656
(CONNECT)
8
SPLICE
SP7654
(CONNECT)
CONNECTOR
P0715
(CONNECT)
EM145SB550344A.DGN
HOOD BELT
(MEASURE THE ELECTRICAL
RESISTANCE)
SCREW
PN PE21101−3−1CP
(7 POSITIONS)
(INSTALL)
SCREW
PN PE21101−3−2CP
(6 POSITIONS)
(INSTALL)
POST − MOD
C
C
DET. B
12
13
 
 
- APPLICABLE TO GROUP 2 AND GROUP 4 
 
FIGURE 3: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 07 OF 09)

### Page 52

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 50 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
EM145SB550345A.DGN
TYPICAL
E
E
3
7
WASHER
PN NAS1149FN416P
(INSTALL)
WASHER
PN NAS1197−4L
(INSTALL)
7
SCREW
PN MS24693−C6
(INSTALL)
7
7
NUT
PN H14−04
(INSTALL)
7
WASHER
PN MS35338−40
(INSTALL)
E−E
ELECTRICAL BONDING (METHOD 3)3
BONDING JUMPER
(REF.)
POST − MOD
C−C
 
 
- APPLICABLE TO GROUP 2 AND GROUP 4 
 
FIGURE 3: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 08 OF 09)

### Page 53

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 51 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
HOOD ASSY
REAR MOVABLE
FAIRING
(REF.)
DIVERTERS
(REF.)
CLAMP 
PN PE27019R15
SCREW
PN MS24694−C6
WASHER
PN NAS1149FN832P
NUT
PN H14−08
(02 POSITIONS)
(INSTALL)
5
5
CLAMP 
PN PE27019R15
SCREW
PN NAS1801−08−8
WASHER
PN NAS1149CN832R
(INSTALL)DET. H
DET. G
(TYPICAL)
SECTION F−F
EM145SB550358A.DGN
NUT PLATE
(REF.)
 
 
 
- APPLICABLE TO GROUP 2 AND GROUP 4 
 
FIGURE 3: IMPROVEMENT IN LIGHTNING PROTECTION OF TH E ELECTRICAL SYSTEM 
(SHEET 09 OF 09)

### Page 54

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 52 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
1. Remove and retain nut plate PN MS21062L3 (6 posi tions) and PN MS21060L3 (2 
positions) and discard the existing rivets. Refer t o detail C (PRE MOD) and Structural 
Repair Manual – Chapter 51-40-02 – Standard Procedures. 
2. Reinstall the removed nut plate PN MS21062L3 (6 positions) and PN MS21060L3 (2 
positions) using rivets PN MS20426AD3-5 (8 position s) and PN MS20426AD3-4 (8 
positions) according to detail C (POST MOD). Refer to Structural Repair Manual – 
Chapter 51-40-02 and 51-40-03 – Standard Procedures 
3. Apply a fillet of sealant PN PR1776M B2 654 SEMK IT to the contour of the support. 
Refer to detail C1. 
4. Remove and discard harness support PN MS3340-1-9  according to section F-F and 
install rivet PN NAS9301B-4-05 and washer PN NAS620A5L according to section G-G  
and detail G. 
5. Install support PN PE29051Z-3CH as follows: 
a. Position support PN PE29051Z-3CH according to di mensions presented in detail G 
and mark the position of the rivet holes. 
b. Drill and ream the rivet holes in the support. R efer to Structural Repair Manual – 
Chapter 51-20-03 and 51-40-04 – Standard Procedures. 
c. Countersink the rivet holes as indicated in deta il H .Refer to Structural Repair 
Manual – Chapter 51-40-06 – Countersinking – Standard Procedures. 
d. Install support PN PE29051Z-3CH using rivet PN M S20426AD4-7. Refer to details 
G and J, and Structural Repair Manual – Chapter 51-40-02 – Standard Procedures. 
6. Remove and discard harness support PN TM2S6 and the applicable rivet according to 
detail L (PRE MOD) and install rivet PN NAS9302B-4- 02 and washer PN NAS620A5L 
according to detail L (POST MOD). Refer to Structur al Repair Manual – Chapter 51-
40-02 and 51-40-03 – Standard Procedures. 
7. Remove existing rivet and enlarge the hole as fo llows: 
a. Remove and discard the existing rivet. Refer to section M-M. 
b. Ream the hole to the final diameter (25.4 in). R efer to section M-M and refer to 
Structural Repair Manual – Chapter 51-20-03 and 51-40-04 – Standard Procedures. 
 
 
 
 
 
 
 
FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONA L ACTION 
(SHEET 01 OF 14)

### Page 55

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 53 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
8. Remove and discard the existing nut plate as fol lows: 
a. Remove and discard nut plate PN MS21060L3 (RH an d LH) and the existing rivets. 
Refer to details K and M (PRE MOD). 
b. Apply sealant PN PR1776M B2 654 SEMKIT to the ho les. Refer to detail M (POST 
MOD). 
c. Prepare the bond area applying alodyne 1200S (Sp ec. MIL-C-5541). Refer to detail 
N (POST MOD) and the applicable Aircraft Maintenance Manual - Chapter 20-13-21 
(TASK 20-13-21-910-801-A) - Standard Practices – Airframe. 
9. Drill the hole as follows: 
a. Drill the holes according to dimensions presented in detail K. and section P-P. 
b. Countersink the rivet holes as indicated in to s ections P-P. Refer to Structural 
Repair Manual – Chapter 51-40-06 – Countersinking – Standard Procedures. 
c. Prepare the countersink area for bonding, applyi ng alodyne 1200S (Spec. MIL-C-
5541). Refer to the applicable Aircraft Maintenance  Manual - Chapter 20-13-21 
(TASK 20-13-21-910-801-A) - Standard Practices – Airframe. 
10. Remove the existing sealant and release the edge of the diverter according dimensions 
presented in detail K. 
11. Prepare the bond area applying alodyne 1200S (S pec. MIL-C-5541). Refer to the 
applicable Aircraft Maintenance Manual - Chapter 20 -13-21 (TASK 20-13-21-910-801-
A) - Standard Practices – Airframe. 
 
 
 
 
 
 
 
 
 
 
 
 
FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONA L ACTION 
(SHEET 02 OF 14)

### Page 56

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 54 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
 
12. With a permanent marker pen or a rubber stamp, re-identify the movable Tail Boom 
fairing according to Table, as follows: 
 
REIDENTIFICATION TABLE  
FROM TO 
145-21649-407 140-13327-601 
145-21649-413 140-13327-601 
145-21649-415 140-13327-601 
145-21649-417 140-13327-601 
145-21649-419 140-13327-601 
145-40481-401 140-13327-601 
145-40481-403 140-13327-601 
145-40481-405 140-13327-601 
145-48758-401 140-13327-601 
145-48758-403 140-13327-601 
145-54047-401 140-13327-601 
145-54047-403 140-13327-601 
145-54608-401 140-13327-601 
145-54608-403 140-13327-601 
145-54608-405 140-13327-601 
 
 
 
 
 
FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONA L ACTION 
(SHEET 03 OF 14)

### Page 57

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 55 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
A
ZONE
321
D
E
DET. A
REAR FIXED
FAIRING
DET. B
C
EM145SB550334A.DGN
 B
K
 
 
 
FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONA L ACTION 
(SHEET 05 OF 14)

### Page 58

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 56 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
1 APPLY A FILLET OF SEALANT PN PR1776M B2 654 SEMKIT TO THE CONTOUR OF THE PART.
(PRE−MOD)
(POST−MOD)
Y
0.0
YH
30.0
YH
−30.0
1
1
1
1
2
2
2
2
C1
DET. C
DET. C
EM145SB550335A.DGN
NUT PLATE
PN MS21060L3
(RETAIN)
NUT PLATE
PN MS21060L3
(RETAIN)
NUT PLATE
PN MS21062L3
(3 POSITIONS)
(RETAIN)
NUT PLATE
PN MS21062L3
(3 POSITIONS)
(RETAIN)
2
NUT PLATE
PN MS21062L3
(2 POSITIONS)
(REINSTALL)
RIVET
PN MS20426AD3−4
(4 POSITIONS)
(INSTALL)
NUT PLATE
PN MS21062L3
(2 POSITIONS)
(REINSTALL)
RIVET
PN MS20426AD3−4
(4 POSITIONS)
(INSTALL)
NUT PLATE
PN MS21062L3
(1 POSITION)
(REINSTALL)
RIVET
PN MS20426AD3−5
(2 POSITIONS)
(INSTALL)
2
NUT PLATE
PN MS21062L3
(1 POSITION)
(REINSTALL)
RIVET
PN MS20426AD3−5
(2 POSITIONS)
(INSTALL)
NUT PLATE
PN MS21060L3
(REINSTALL)
RIVET
PN MS20426AD3−5
(2 POSITIONS)
(INSTALL)
NUT PLATE
PN MS21060L3
(REINSTALL)
RIVET
PN MS20426AD3−5
(2 POSITIONS)
(INSTALL)
 
 
 
FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONA L ACTION 
(SHEET 06 OF 14)

### Page 59

SERVICE BULLETIN  
 
DATE: 20/Jan/2003 S.B. No.: 145-55-0030 
REVISION No.: 05 – 29/Jul/2011 PAGE: 57 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
Y
0.0
2
1
APPLY ALODYNE ON THE COUNTERSINK AREA FOR BONDING.
APPLY A FILLET OF SEALANT PN PR1776M B2 654 SEMKIT TO THE CONTOUR OF THE PART.
DET. D
2
2
EM145SB550336A.DGN
3 1
DET. C1
(UPPER VIEW)
SUPPORT
(APPLY SEALANT)
 
 
 
FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONA L ACTION 
(SHEET 07 OF 14)

### Page 60

SERVICE BULLETIN  
 
S.B. No.: 145-55-0030 DATE: 20/Jan/2003 
PAGE: 58 REVISION No.: 05 – 29/Jul/2011 
Copyright © by EMBRAER - All rights reserved - See page 1 for details. 
ZV
3755.0
ZV
3604.5
X
28135.9
SPAR III
X
28644.9
X
29075.0
VT
100%
X
29786.4
DET. E
S
EM145SB550337A.DGN
11
REAR MOVABLE
FAIRING
(REIDENTIFY) 
F F
M M
J
 
 
 
FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONA L ACTION 
(SHEET 08 OF 14)

The text continues at https://openairdocs.org/service-documents/embraer/sb-145-55-0030/file/9590a8f90cd1.md?from=61

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