### TRANSMITTAL LETTER

TRANSMITTAL LETTER SB No.: 145-55-0030 PAGE: 1 of 2 1. DESCRIPTION

This sheet transmits Revision 05 to Service Bulleti n 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 for mat 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 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 O F 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

# 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, 145 01130 and 14501135 and on, have an equivalent modification factory-incorporate d.

# 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 air craft, 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 equipp ed 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

# 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 equipp ed 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,

# 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 yincorporated, 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,

# 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 yincorporated, 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 t he 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 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.

# 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 minim ize lightning direct effects. To do this, it is necessary to remove the rear mova ble 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 eff ects. To do this, it is necessary to remove the rear mova ble 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 b y experienced personnel, and does not include the time to plan, prepare, or inspect t he 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 5 5-00-00 – 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 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 Emb raer 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.

# 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 altern ative 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

# 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 mova ble 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 mova ble 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 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 N EW 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 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

# 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 in ventories 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 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 figu re.
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 applic able.

# 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 applic able. 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.

# 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. MILPRF-81733 Type IV Class 12) and fillet sealant PN P R1440B2 (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 pos itions). Refer to detail D.

FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL 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 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-PRF81733 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 PP. 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 Procedur es. 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 TA IL 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 TA IL 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 TA IL 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 TA IL 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 TA IL 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 TA IL 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 TA IL 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)

K M

FIGURE 1: IMPROVEMENT IN LIGHTNING PROTECTION OF TA IL 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 TA IL 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 TA IL 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 TA IL 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

13 NUT 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)

# 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 n ut 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. R efer 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 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)

# 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 Repai r Manual - Chapter 51-20-01 – Standard Practices and Structures - Gene ral. 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 (PO ST 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)

# 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)

# 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 TH E 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 TH E 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 TH E 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 TH E 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) 7 WASHER 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)

# 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)

# 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 n ut 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)

# 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 Structure s - 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 (P OST 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)

# 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)

# 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)

# 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)

# 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)

# 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)

# 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)

# 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)

# 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 Procedu res. 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 NAS620 A5L 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 – Standa rd 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)

# 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 Maintenanc e Manual - Chapter 20-13-21 (TASK 20-13-21-910-801-A) - Standard Practices – Ai rframe. 9. Drill the hole as follows: a. Drill the holes according to dimensions presente d 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-C5541). Refer to the applicable Aircraft Maintenance Manual - Chapter 20-13-21 (TASK 20-13-21-910-801-A) - Standard Practices – Ai rframe. 10. Remove the existing sealant and release the edg e 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)

# 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)

# 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)

# 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)

# 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)

# 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)

# 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 - ADDITIONA L 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 - ADDITIONA L 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) 2 9

2 9

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. 5 10

DET. J

FIGURE 4: REWORK OF REAR MOVABLE FARING - ADDITIONA L 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 - ADDITIONA L 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 - ADDITIONA L 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 - ADDITIONA L 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 - ADDITIONA L ACTION

(SHEET 14 OF 14).

. . 

### SERVICE BULLETIN EVALUATION

THE PURPOSE OF THIS FORM IS TO COLLECT DATA THAT WI LL BE USED TO IMPROVE THE QUALITY OF OUR SERVICE BULLETINS AND UPDATE THE TECHNICAL PUBLICAT ION. 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 o f incorporation/ Suggested improvements/ Other)

Organization: Fax: Phone:

E-mail: Address: Prepared by: (Name/ Title) Date:

ENS-003393