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 issues 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 page 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. 
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. 
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 reserved. The information, technical data, designs and drawings 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, 145364 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 
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. 
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, 145210 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, 145210 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 
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, 145364 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, 
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 factoryincorporated, and are equipped with Movable Tail 

Boom With Two Navigation Lights. 

(4) GROUP 4 

MODEL SN 

EMB-145( ) and EMB-135( ) 145002 thru 145362, 145364 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, 
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 factoryincorporated, and are equipped with Movable Tail 

Boom With Four Navigation Lights. 

B. CONCURRENT REQUIREMENTS 

The accomplishment of Service Bulletin SB145-33-0032 in its original Issue or a 

subsequent approved revision is required prior to the accomplishment of this Service 

Bulletin. 
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 elevator 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, replace the hood assembly with a 

new improved one and reroute the electrical harness. 

3. EXPECTED BENEFITS 

To improve the electrical path for the lightning current, thereby minimizing 

lightning direct effects on the aircraft. 

4. REVISION HISTORY 

(a) Revision 01: To change the Service Bulletin effectivity. 

(b) Revision 02: To change the Service Bulletin effectivity. 

(c) Revision 03: To change the Service Bulletin effectivity and substitute a task 

number. 

(d) Revision 04: To include aircraft SN 145374, 145671, 145729, and 145757 in 

the Service Bulletin effectivity. 

(e) Revision 05: To modify Service Bulletin solution, include additional action as 

PART II and also divided SB in 4 GROUPS. 
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 not 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 bulletin consists of the installation of 

metallic diverters, aluminum sheets and improvements 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 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. 

E. COMPLIANCE 

(1) APPLICABLE TO PART I 

Embraer recommends that PART I of this bulletin be accomplished up to next C 

check. 
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 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. 

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. 
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). 
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 55-00-00 – Stabilizers. 

AMM 145/( ) – Aircraft Maintenance Manual – Chapter 55-36-00 – Stabilizers. 
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 below, 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 PN 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. 
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 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, which are necessary for its accomplishment, should be 

procured from the operator's inventories or ordered as spares. 

The complementary information, when necessary, is presented as Notes in the 

respective Table. 

For ordering information and Top Kit effectivity refer to section “2. A. MATERIAL - 

PRICE AND AVAILABILITY”. 

(1) TOP KITS AND KITS 

Kit Summary: Top Kit Composition 

Top Kit PN 145-03535-621 145-03536-611 145-54608-607 145-54608-609 

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 
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 
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 
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 inventories 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. 
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 reidentify the parts, when necessary, is 

presented in the referenced Notes. 

DESCRIPTION OLD PN NEW PN 

Movable Tail Boom fairing assy 145-03536-401 145-03536-603 

Movable Tail Boom fairing assy 145-03536-403 145-03536-603 

Movable Tail Boom fairing assy 145-03536-621 145-03536-603 

Movable Tail Boom fairing assy 145-03536-623 145-03536-603 

Movable Tail Boom fairing assy 145-03536-625 145-03536-603 

Movable Tail Boom fairing assy 145-03536-627 145-03536-603 

Movable Tail Boom fairing assy 145-03536-629 145-03536-603 

Movable Tail Boom fairing assy 145-03536-631 145-03536-603 

Movable Tail Boom fairing assy 145-03536-633 145-03536-603 

Movable Tail Boom fairing assy 145-03536-635 145-03536-603 

Movable Tail Boom fairing assy 145-03536-637 145-03536-603 

Movable Tail Boom fairing assy 145-03536-639 145-03536-603 

Movable Tail Boom fairing assy 145-03536-641 145-03536-603 

Movable Tail Boom fairing assy 145-03536-643 145-03536-603 

Movable Tail Boom fairing assy 145-03536-645 145-03536-603 

Movable Tail Boom fairing assy 145-03536-647 145-03536-603 

Movable Tail Boom fairing assy 145-03536-649 145-03536-603 

Movable Tail Boom fairing assy 145-03535-401 145-03535-603 

Movable Tail Boom fairing assy 145-03535-403 145-03535-605 

Movable Tail Boom fairing assy 145-03535-405 145-03535-413 

Movable Tail Boom fairing assy 145-03535-407 145-03535-607 

Movable Tail Boom fairing assy 145-03535-409 145-03535-617 

Movable Tail Boom fairing assy 145-03535-411 145-03535-415 

Movable Tail Boom fairing 145-21649-407 140-13327-601 

Movable Tail Boom fairing 145-21649-413 140-13327-601 

Movable Tail Boom fairing 145-21649-415 140-13327-601 

Movable Tail Boom fairing 145-21649-417 140-13327-601 

Movable Tail Boom fairing 145-21649-419 140-13327-601 

Movable Tail Boom fairing 145-40481-401 140-13327-601 

Movable Tail Boom fairing 145-40481-403 140-13327-601 

Movable Tail Boom fairing 145-40481-405 140-13327-601 

Movable Tail Boom fairing 145-48758-401 140-13327-601 

Movable Tail Boom fairing 145-48758-403 140-13327-601 

Movable Tail Boom fairing 145-54047-401 140-13327-601 

Movable Tail Boom fairing 145-54047-403 140-13327-601 

Movable Tail Boom fairing 145-54608-401 140-13327-601 

Movable Tail Boom fairing 145-54608-403 140-13327-601 

Movable Tail Boom fairing 145-54608-405 140-13327-601 
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. 
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 into 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 independent 

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 maintenance. 

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 according Figure 1. 

b. Carry out the electrical modification to the rear movable fairing according 

Figure 2 (GROUP 1) or Figure 3 (GROUP 2), as applicable. 
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 according Figure 4. 

b. Carry out the electrical modification to the rear movable fairing according 

Figure 2 (GROUP 3) or Figure 3 (GROUP 4), as applicable. 

E. Reinstall the rear movable fairing of the tail boom 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 the electrical 

connector P0834 and the primary structure. The maximum allowed 

resistance value is 15 miliohms. 

F. Paint the reworked area with customer’s color scheme. 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. 
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 from 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. MILPRF-81733 Type IV Class 12) and fillet sealant PN PR1440B2 (Spec. SAE 

AMS-S-8802 Type II Class B2). Refer to the applicable Structural Repair 

Manual – Chapter 51-20-01 – Standard Practices and Structures. 

6. Install support PN PE29051Z-3CH to the rear movable 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 movable fairing, mark and drill 

holes in the fairing using the existing holes of the diverters and the dimensions 

shown in details C, D, E and F as a guide. 

8. Remove the diverters and install nut plate PN MS21060L3 (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)
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 movable 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-PRF81733 Type IV Class 12) except in the surface prepared for 

electrical bonding shown in the figure. Refer to the applicable 

Structural Repair Manual – Chapter 51-20-01 – Standard Practices 

and Structures. 

10. Remove the existing rivet and enlarge the hole to 25.4 mm, as shown in section PP. 

11. Remove and discard the existing electrical support PN TM2S6 by removing its 

attached rivet. Plug the hole with rivet PN NAS9302B-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 attaching 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 positions) and PN MS20426AD3-4 

(8 positions) according to detail T (POST MOD). Refer to Structural Repair Manual 

– Chapter 51-40-02 and 51-40-03 – Standard Procedures. 

14. Apply a fillet of sealant PN PR1776M B2 654 SEMKIT to the contour of the part. 

Refer to detail U. 

FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TAIL BOOM 

(SHEET 02 OF 13)
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) 
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 TAIL BOOM 

(SHEET 04 OF 13) 
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)

1

7

DIVERTER

PN 145−54614−009

(INSTALL)

SHEET

PN 145−54611−005 (LH)

(INSTALL)

EM145SB550347A.DGN

FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TAIL BOOM 

(SHEET 05 OF 13)
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 TAIL BOOM 

(SHEET 06 OF 13) 
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 TAIL BOOM 

(SHEET 07 OF 13) 
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 TAIL BOOM 

(SHEET 08 OF 13) 
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)

M K

FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TAIL BOOM 

(SHEET 09 OF 13) 
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 TAIL BOOM 

(SHEET 10 OF 13) 
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 TAIL BOOM 

(SHEET 11 OF 13) 
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 TAIL BOOM 

(SHEET 12 OF 13) 
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

NUT PLATE 13

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 TAIL BOOM 

(SHEET 13 OF 13) 
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, and P0715. Refer to detail B (PRE 

MOD). 

3. Remove and discard grommet PN MS35489-8. Refer to detail A (PRE MOD). 

4. Remove and discard bonding jumper PN PE88001-5AA6 (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 clamp 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 SEMKIT (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 per 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 DD (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 P0715. Refer to detail B (POST 

MOD). 

- APPLICABLE TO GROUP 1 AND GROUP 3 

FIGURE 2: IMPROVEMENT IN LIGHTNING PROTECTION OF THE ELECTRICAL SYSTEM 

(SHEET 01 OF 09) 
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 diverters 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 PR1440B2 (Spec. SAE AMS-S-8802 

Type I Class B2) to the lightning diverter (4 positions). Refer to the applicable 

Structural Repair Manual – Chapter 51-20-01 – Standard 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 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 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 Maintenance Manual - Chapter 20-13-

21 (TASK 20-13-21-700-801- A) - Maintenance Practices. 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 THE ELECTRICAL SYSTEM 

(SHEET 02 OF 09)
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 THE ELECTRICAL SYSTEM 

(SHEET 03 OF 09) 
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)

3

ELECTRICAL

HARNESS 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 THE ELECTRICAL SYSTEM 

(SHEET 04 OF 09) 
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 THE ELECTRICAL SYSTEM 

(SHEET 05 OF 09) 
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 THE ELECTRICAL SYSTEM 

(SHEET 06 OF 09) 
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 THE ELECTRICAL SYSTEM 

(SHEET 07 OF 09) 
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)

WASHER 7

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 THE ELECTRICAL SYSTEM 

(SHEET 08 OF 09) 
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 DET. H (INSTALL)

DET. G

(TYPICAL)

SECTION F−F

NUT PLATE

(REF.)

- APPLICABLE TO GROUP 1 AND GROUP 3 

FIGURE 2: IMPROVEMENT IN LIGHTNING PROTECTION OF THE ELECTRICAL SYSTEM 

(SHEET 09 OF 09) 
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 splices SP7654, SP7655, and SP7656. 

Refer to detail B (PRE MOD). 

3. Remove and discard grommet PN MS35489-8. Refer to detail A (PRE MOD). 

4. Remove the bonding jumber (2 positions) attaching 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 clamp 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 SEMKIT (Spec AMS 3281, 

class B), or similar. Refer to detail D. 

7. Install the bonding jumber (2 positions) attaching 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 SP7654, SP7655, and SP7656. 

Refer to detail B (POST MOD). 

- APPLICABLE TO GROUP 2 AND GROUP 4 

FIGURE 3: IMPROVEMENT IN LIGHTNING PROTECTION OF THE ELECTRICAL SYSTEM 

(SHEET 01 OF 09)
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 diverters 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 PR1440B2 (Spec. SAE AMS-S-8802 

Type I Class B2) to the lightning diverter (4 positions). Refer to the applicable 

Structural Repair Manual – Chapter 51-20-01 – Standard 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 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). 

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 THE ELECTRICAL SYSTEM 

(SHEET 02 OF 09) 
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 THE ELECTRICAL SYSTEM 

(SHEET 03 OF 09) 
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 THE ELECTRICAL SYSTEM 

(SHEET 04 OF 09) 
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 THE ELECTRICAL SYSTEM 

(SHEET 05 OF 09) 
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 THE ELECTRICAL SYSTEM 

(SHEET 06 OF 09) 
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 THE ELECTRICAL SYSTEM 

(SHEET 07 OF 09) 
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 THE ELECTRICAL SYSTEM 

(SHEET 08 OF 09) 
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 DET. H (INSTALL)

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 THE ELECTRICAL SYSTEM 

(SHEET 09 OF 09) 
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 positions) and PN MS21060L3 (2 

positions) and discard the existing rivets. Refer to 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 positions) 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 SEMKIT 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 dimensions presented in detail G 

and mark the position of the rivet holes. 

b. Drill and ream the rivet holes in the support. Refer to Structural Repair Manual – 

Chapter 51-20-03 and 51-40-04 – Standard Procedures. 

c. Countersink the rivet holes as indicated in detail H .Refer to Structural Repair 

Manual – Chapter 51-40-06 – Countersinking – Standard Procedures. 

d. Install support PN PE29051Z-3CH using rivet PN MS20426AD4-7. 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 Structural Repair Manual – Chapter 51-

40-02 and 51-40-03 – Standard Procedures. 

7. Remove existing rivet and enlarge the hole as follows: 

a. Remove and discard the existing rivet. Refer to section M-M. 

b. Ream the hole to the final diameter (25.4 in). Refer 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 - ADDITIONAL ACTION 

(SHEET 01 OF 14) 
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 follows: 

a. Remove and discard nut plate PN MS21060L3 (RH and LH) and the existing rivets. 

Refer to details K and M (PRE MOD). 

b. Apply sealant PN PR1776M B2 654 SEMKIT to the holes. Refer to detail M (POST 

MOD). 

c. Prepare the bond area applying alodyne 1200S (Spec. 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 sections P-P. Refer to Structural 

Repair Manual – Chapter 51-40-06 – Countersinking – Standard Procedures. 

c. Prepare the countersink area for bonding, applying alodyne 1200S (Spec. MIL-C5541). 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 (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. 

FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONAL ACTION 

(SHEET 02 OF 14) 
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 - ADDITIONAL ACTION 

(SHEET 03 OF 14) 
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 - ADDITIONAL ACTION 

(SHEET 05 OF 14) 
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 - ADDITIONAL ACTION 

(SHEET 06 OF 14) 
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 - ADDITIONAL ACTION 

(SHEET 07 OF 14) 
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 - ADDITIONAL ACTION 

(SHEET 08 OF 14) 
SERVICE BULLETIN

DATE: 20/Jan/2003 S.B. No.: 145-55-0030 

REVISION No.: 05 – 29/Jul/2011 PAGE: 59 

Copyright © by EMBRAER - All rights reserved - See page 1 for details. 

Y

0.0

ZV

3755.0

Y

0.0

ZV

3755.0

4

HARNESS SUPPORT

PN MS3340−1−9

EXISTING RIVET

(REMOVE AND DISCARD)

EM145SB550338A.DGN

G

SECTION F−F

(POST MOD)

SECTION F−F

(PRE MOD)

FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONAL ACTION 

(SHEET 08 OF 14) 
SERVICE BULLETIN

S.B. No.: 145-55-0030 DATE: 20/Jan/2003 

PAGE: 60 REVISION No.: 05 – 29/Jul/2011 

Copyright © by EMBRAER - All rights reserved - See page 1 for details. 

Y

0.0

ZV

3755.0

25.0

5

SUPPORT

PN PE29051Z−3CH

(1 POSITION)

RIVET

PN MS20426AD4−7

(2 POSITIONS)

(INSTALL)

4

RIVET

PN NAS9301B−4−05

WASHER

PN NAS620A5L

(INSTALL)

DET. G

DIMENSIONS IN MM

SHEET

(REF.)

REAR MOVABLE

FAIRING 

(REF.)

Ø3.4

Ø3.2

1.2

EM145SB550339A.DGN

H

DET. H

S

100°

FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONAL ACTION 

(SHEET 09 OF 14) 
SERVICE BULLETIN

DATE: 20/Jan/2003 S.B. No.: 145-55-0030 

REVISION No.: 05 – 29/Jul/2011 PAGE: 61 

Copyright © by EMBRAER - All rights reserved - See page 1 for details. 

81.0

33.0

X

29075.0

VT

100% X

29786.4

HOLE

(DRILL AND

COUNTERSINK)

(BOND THE HOLE AREA)

EXISTING NUT PLATE

AND RIVETS

(REMOVE AND DISCARD)

(BOND THE HOLE AREA)

HOLE

(DRILL AND

COUNTERSINK)

(BOND THE HOLE AREA)

9 2

9 2

2

L

N

Q

Q

R

P

P

8

EM145SB550340A.DGN

100.0

APPLY ALODYNE ON THE COUNTERSINK FOR BONDING. 2

5 REMOVE SEALANT AND RELEASE THE DIVERTER EDGE.

10 5

DET. J

FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONAL ACTION 

(SHEET 10 OF 14) 
SERVICE BULLETIN

S.B. No.: 145-55-0030 DATE: 20/Jan/2003 

PAGE: 62 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

SCREW

PN PE21101−3−2CP

(15 POSITIONS)

(INSTALL)

9

X

29075.0

VT

100%

X

29786.4

33.0

100.0

6

DO NOT APPLY SEALANT IN THIS AREA. 6

DET. K

DET. L

EM145SB550356A.DGN

SCREW

PN PE21101−3−2−CP

(2 POSITIONS)

(INSTALL TOGETHER 

WITH THE HOOD ASSY)

9

Q Q

L

DIMENSIONS IN MM

FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONAL ACTION 

(SHEET 11 OF 14) 
SERVICE BULLETIN

DATE: 20/Jan/2003 S.B. No.: 145-55-0030 

REVISION No.: 05 – 29/Jul/2011 PAGE: 63 

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

6

6

Ø 25.4

(REMOVE EXISTING RIVET

AND REWORK HOLE)

7

DET. L

DET. L

SECTION M−M

EM145SB550341A.DGN

FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONAL ACTION 

(SHEET 12 OF 14) 
SERVICE BULLETIN

S.B. No.: 145-55-0030 DATE: 20/Jan/2003 

PAGE: 64 REVISION No.: 05 – 29/Jul/2011 

Copyright © by EMBRAER - All rights reserved - See page 1 for details. 

NUT PLATE

PN MS21060L3

EXISTING RIVETS

(REMOVE AND

DISCARD

AREA TO BE BONDED

APPLY ALODYNE ON THE COUNTERSINK AREA FOR BONDING.

8 4

4

2

RIVET HOLES

(SEAL)

2

8

2

100°

Ø 8.5

4.6 ± 0.1

(1 PLACE)

DET. N

DET. N

SECTION P−P

EM145SB550342A.DGN

PRE − MOD

POST − MOD

APPLY SELANT PN PR1776M B2 654 SEMKIT TO THE RIVETS HOLES

FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONAL ACTION 

(SHEET 13 OF 14) 
SERVICE BULLETIN

DATE: 20/Jan/2003 S.B. No.: 145-55-0030 

REVISION No.: 05 – 29/Jul/2011 PAGE: 65 

Copyright © by EMBRAER - All rights reserved - See page 1 for details. 

APPLY ALODYNE ON THE COUNTERSINK AREA FOR BONDING. 2

2

100°

PREPARE SURFACE FOR ELECTRICAL BONDING APPLYING ALODYNE .

ELECTRICAL BONDING

(PREPARE SURFACE 15X30)

(4 POSITIONS)

5

5

Ø 7.4

(LH SIDE SHOWN, RH SIDE OPPOSITE)

DIMENSIONS IN MM

SECTION Q−Q

EM145SB550343A.DGN

SHEET

(REF.)

9.0

SUPPORT

PN PE29051Z−3CH

(1 POSITION)

RIVET

PN MS20426AD4−7

(2 POSITIONS)

(INSTALL)

90°

6

DET. L

DET. R

(TYPICAL)

11

3.8 ± 0.1

FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONAL ACTION 

(SHEET 14 OF 14) 
.

..

SERVICE BULLETIN EVALUATION 

THE PURPOSE OF THIS FORM IS TO COLLECT DATA THAT WILL BE USED TO IMPROVE THE QUALITY OF OUR 

SERVICE BULLETINS AND UPDATE THE TECHNICAL PUBLICATION. PLEASE FILL IN FORM AND RETURN IT TO: 

EMBRAER S.A. 

TECHNICAL PUBLICATIONS 

AV. BRIG. FARIA LIMA, 2170 

SÃO JOSÉ DOS CAMPOS - SP - 12227-901 

BRASIL 

Fax: ++ 55 12 3927-7546 

e-mail: fleet.reliability@embraer.com.br

SB Title: SB: (Number / Rev.) 

Operator: Aircraft serial number affected: (per SB effectivity list) 

 

PRE-ACCOMPLISHMENT EVALUATION: (check applicable squares below)

[ ] WILL BE ACCOMPLISHED ON FIRST A/C [ ] WILL BE ACCOMPLISHED AS REQUIRED 

[ ] WILL BE ACCOMPLISHED ON FLEET [ ] DECISION DEFERRED (Explain below) 

[ ] UNECONOMICAL 

[ ] SERVICE EXPERIENCE DOES NOT JUSTIFY 

[ ] OPERATIONAL ENVIRONMENT DOES NOT JUSTIFY [ ] WILL NOT BE ACCOMPLISHED: 

[ ] OTHER (Explain below) 

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: 

 

ENS-003393