1. DESCRIPTION

This sheet transmits Revision 01 to Service Bulletin 170-53-0082.

This is a complete reissue of the Bulletin.

This revision incorporates the information presented in the Information Notice related to the

previous issues of this Service Bulletin, as listed below:

None.

2. ADDITIONAL ACTION

Aircraft that have complied with the previous issue of this bulletin do not need any additional

action.

3. RECORD OF REVISION

Basic issue: 13/Oct/2009.

Revision 01: 28/Apr/2010.

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

1.A. SB EFFECTIVITY/01 Changed Service Bulletin effectivity.

1.C. REASON /02 Added reason of Revision 01.

TRANSMITTAL LETTER

SB No.: 170-53-0082

PAGE: 1 of 1

Embraer Copyright © 2010. All rights reserved.

FUSELAGE - INSPECTION OF THE REAR PRESSURE BULKHEAD RING

1. PLANNING INFORMATION

A. SB EFFECTIVITY

Aircraft affected:

MODEL SN

Embraer 170( ) and 175( ) 17000002, 17000004 thru 17000013, 17000015 thru

17000212, 17000216 thru 17000233, 17000236,

17000269, 17000281 thru 17000291, and 17000293.

In-production effectivity:

The subject presented in this bulletin does not affect any in-production aircraft.

B. CONCURRENT REQUIREMENTS

None.

C. REASON

(1) HISTORY

Drill marks were detected at the lower ring region of the rear pressure bulkhead,

between circumferential splice joint and rear skin (stringers 12 and 13). These marks

might be caused by a drilling tool of the production line, during the aircraft assembly.

(2) OBJECTIVE

To provide the instructions for doing a visual inspection for signs of drill marks at the

LH/RH lower ring region of the rear pressure bulkhead and, if necessary, doing a

repair in this area.

SERVICE BULLETIN

DATE: 13/Oct/2009

REVISION No.:01 - 28/Apr/2010

SB No.: 170-53-0082

PAGE: 1 of 16

Embraer Copyright © 2010. All rights reserved.
(3) EXPECTED BENEFITS

The purpose of this Service Bulletin is to rework possible tooling marks in the rear

pressure bulkhead ring and thus avoid the appearance of future cracks.

(4) REVISION HISTORY

REVISION 01: To include aircraft serial numbers 17000216 thru 17000233,

17000236, 17000269, and 17000293 in the service bulletin

effectivity.

D. DESCRIPTION

This Bulletin is divided into 2 PARTS, as follows:

PART I VISUAL INSPECTION OF THE REAR PRESSURE BULKHEAD RING

Applicable to: Refer to 1.A. SB EFFECTIVITY.

PART I of this bulletin consists of a visual inspection for signs of drill marks at the LH/RH

lower ring region of the rear pressure bulkhead, between circumferential splice joint and

rear skin (stringers 12 and 13).

To gain access to the work area, it is necessary to open the rear fuselage door 314BR,

located in zones 314 and 316.

PART II REWORK OF THE REAR PRESSURE BULKHEAD RING

Applicable to: Refer to 1.A. SB EFFECTIVITY.

The modification presented in PART II of this bulletin consists of the rework of the rear

pressure bulkhead ring in order to eliminate the possible existence of drill marks.

To gain access to the work area, it is necessary to open the rear fuselage door 314BR,

located in zones 314 and 316.

NOTE: The modification presented in this bulletin affects the Fatigue Critical

Structure (FCS); however, no change to the related Damage Tolerance

Inspection (DTI) instructions is required.

SERVICE BULLETIN

SB No.: 170-53-0082

PAGE: 2

DATE: 13/Oct/2009

REVISION No.: 01 - 28/Apr/2010

Embraer Copyright © 2010. All rights reserved.
E. COMPLIANCE

(1) APPLICABLE TO PART I

Embraer recommends that PART I of this bulletin be accomplished by the time that

the aircraft logs 20000 Flight Cycle(s).

(2) APPLICABLE TO PART II

If any drill mark(s) was(were) detected during the accomplishment of PART I,

Embraer recommends that PART II of this bulletin be accomplished immediately

after the accomplishment of PART I.

F. APPROVAL

The technical aspects of this Service Bulletin are approved by: Agência Nacional de

Aviação Civil (ANAC).

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: 0.2 man-hours.

– Inspection: 0.5 man-hours.

– Modification: None.

– Access closure: 0.2 man-hours.

– Test: None.

SERVICE BULLETIN

DATE: 13/Oct/2009

REVISION No.:01 - 28/Apr/2010

SB No.: 170-53-0082

PAGE: 3

Embraer Copyright © 2010. All rights reserved.
(2) APPLICABLE TO PART II

– Access opening: 0.2 man-hours.

– Inspection: None.

– Modification: 1.5 man-hours.

– Access closure: 0.2 man-hours.

– Test: None.

H. WEIGHT AND BALANCE

None.

I. SOFTWARE ACCOMPLISHMENT SUMMARY

None.

J. REFERENCES

AMM 170/( ) Aircraft Maintenance Manual PART I - 52-45-00 - DOORS.

AMM 170/( ) Aircraft Maintenance Manual PART II - 20-00-00 - STANDARD

PRACTICES-AIRFRAME.

CPM 170/( ) Corrosion Prevention Manual, Part I - 51-25-00 - STANDARD

PRACTICES AND STRUCTURES.

ITEM 170/( ) Illustrated Tool and Equipment Manual.

SRM 170/( ) Structural Repair Manual Part II - 51-10-03, 51-23-04, and

51-23-05 - STANDARD PRACTICES AND STRUCTURES.

K. OTHER PUBLICATIONS AFFECTED

None.

SERVICE BULLETIN

SB No.: 170-53-0082

PAGE: 4

DATE: 13/Oct/2009

REVISION No.: 01 - 28/Apr/2010

Embraer Copyright © 2010. All rights reserved.
2. MATERIAL INFORMATION

A. MATERIAL - PRICE AND AVAILABILITY

(1) MATERIAL AVAILABLE FROM EMBRAER

None.

(2) MATERIAL AVAILABLE FROM OTHER VENDORS

None.

B. INDUSTRY SUPPORT INFORMATION

None.

C. MATERIAL NECESSARY FOR EACH AIRCRAFT

When applicable, the use of alternative or similar parts in place of the one specified in the

kits is allowable, provided that these alternative or similar parts are approved by Embraer

as indicated in the related Embraer Technical Publications or through a formal Embraer

communication channel.

The necessary expendable or consumable parts presented in the AMM Tasks referred to

in this bulletin should be procured from the operator’s inventories or ordered as spares.

(1) TOP KITS AND KITS

None.

(2) MATERIAL TO BE PROCURED

(a) Parts

None.

(b) Consumable Materials

SERVICE BULLETIN

DATE: 13/Oct/2009

REVISION No.:01 - 28/Apr/2010

SB No.: 170-53-0082

PAGE: 5

Embraer Copyright © 2010. All rights reserved.
The material below or equivalent, required for the accomplishment of this

bulletin, should be procured from the operator’s inventories or from a local

supplier.

Applicable to PART II

NEW PN DESCRIPTION OLD PN QTY DISP /

Notes

MS20470AD5-8D Rivet MS20470AD5-8D AR 6

-

Sandpaper,

aluminum-oxyde grain,

No. 320

- AR -

Alodine 1200 Alodine 1200 - AR 6/ [1]

10-P4-2/EC-117 Epoxy Primer - AR 6/ [2]

DINITROL-AV-30 DINITROL-AV-30 - AR 6/ [3]

1. Chemical Compound for Conversion Coating on Aluminum (MIL-DTL-81706) ALODINE

1200.

2. Epoxy Primer (MEP 10-059) 10-P4-2/EC-117.

3. Type II Corrosion-Inhibiting Compound (MEP 10-063) DINITROL-AV-30.

DISPOSITION: 6 = Apply as required

QUANTITY: AR = As Required

D. MATERIAL NECESSARY FOR EACH SPARE

None.

E. REIDENTIFIED PARTS

None.

F. TOOLING - PRICE AND AVAILABILITY

The use of ITEM GSE 177 is suggested for the accomplishment of this bulletin.

SERVICE BULLETIN

SB No.: 170-53-0082

PAGE: 6

DATE: 13/Oct/2009

REVISION No.: 01 - 28/Apr/2010

Embraer Copyright © 2010. All rights reserved.
3. ACCOMPLISHMENT INSTRUCTIONS

NOTE: 1) For the purpose of this Service Bulletin, a General Visual Inspection (GVI) is: “A

visual examination of an interior or exterior area, installation or assembly to

detect obvious damage, failure or irregularity. This level of inspection is made

from within touching distance, unless otherwise specified. A mirror may be

necessary to enhance visual access to all exposed surfaces in the inspection

area. This level of inspection is made under normally available lighting

conditions such as daylight, hangar lighting, flashlight or drop-light and may

require removal or opening of access panels or doors. Stands, ladders or

platforms may be required to gain proximity to the area being checked.”

2) Obey all of the WARNINGS and CAUTIONS included in the referenced manuals

and procedures.

3) The Manuals and other documents are referred to by acronyms or using a

simplified form. Refer to section 1.J. REFERENCES for a more complete

definition.

The steps below outline the general accomplishment instructions.

The detailed sequence is included in the respective figure, when necessary.

A. Make sure that the aircraft is safe for maintenance. Refer to AMM TASK

20-00-00-910-801-A/200 - Aircraft Maintenance Safety Procedures - Standard

Procedures.

WARNING : YOU MUST PREVENT ALL POSSIBLE OPERATION OF THE

HORIZONTAL STABILIZER WHEN YOU WORK ON OR NEAR IT. THE

HORIZONTAL STABILIZER MOVES QUICKLY AND WITH FORCE. IF

THE STABILIZER MOVES WHEN PERSONS ARE IN THE TORSION

BOX COMPARTMENT OR NEAR THE STABILIZER, IT CAN CAUSE

INJURY TO THEM.

WARNING : MAKE SURE THAT THERE WILL BE NO ACCIDENTAL OPERATION OF

THE ELEVATOR AND RUDDER. AN ACCIDENTAL OPERATION OF THE

ELEVATOR AND RUDDER CAN CAUSE INJURY TO PERSONS.

B. Open the rear fuselage door 314BR. Refer to AMM SDS 52-45-00/1.

SERVICE BULLETIN

DATE: 13/Oct/2009

REVISION No.:01 - 28/Apr/2010

SB No.: 170-53-0082

PAGE: 7

Embraer Copyright © 2010. All rights reserved.
NOTE: To avoid damage to the aircraft, Embraer suggests the installation of the GSE177

in the rear fuselage. Refer to ITEM GSE 177.

C. PART I – VISUAL INSPECTION OF THE REAR PRESSURE BULKHEAD RING

(1) Do a visual inspection in the rear pressure bulkhead ring for drill marks, as indicated

in Figure 1.

(a) If no drill mark(s) was(were) found, do Step 3.E. and on.

(b) If any drill mark(s) was(were) found, do PART II (Step 3.D.) of this bulletin.

D. PART II – REWORK OF THE REAR PRESSURE BULKHEAD RING

WARNING : CLEANING PRODUCTS ARE TOXIC AND FLAMMABLE. A GOOD

AIRFLOW MUST BE AVAILABLE WHEN YOU DO THE WORK IN

CLOSED AREAS.

(1) Locate and measure the damaged spot with respect to adjacent rivets and edges

and then estimate the blend-out depth and width. Refer to Figure 2 and Figure 3, as

applicable, for the allowable blend-out dimensions.

NOTE: If no repair is defined in this document, contact Embraer Technical Support.

(2) Check the blend-out outline for interference condition, in order to perform the

blend-out as applicable (Figure 2 and/or Figure 3). The interference occurs when the

distance from blend-out boundary to the riveting line is 3 mm (0.118 in) or less. Refer

to Figure 2 and Figure 3, as applicable.

(3) For blend-out that does not interfere with the existing fasteners, perform the

blend-out as indicated in Figure 2. Refer to SRM PART II 51-10-03/1 - BLEND-OUT

for blend-out general instructions.

SERVICE BULLETIN

SB No.: 170-53-0082

PAGE: 8

DATE: 13/Oct/2009

REVISION No.: 01 - 28/Apr/2010

Embraer Copyright © 2010. All rights reserved.
After that, touch-up the reworked area(s), using Chemical Compound for Conversion

Coating on Aluminum (MIL-DTL-81706) ALODINE 1200 or similar, according to

SRM PART II 51-23-04/1 - PRETREATMENT TO METAL PARTS, apply Epoxy

Primer (MEP 10-059) 10-P4-2/EC-117 or similar, according to SRM PART II

51-23-05/1 - SURFACE PROTECTION - PRIMER, and then apply Type II

Corrosion-Inhibiting Compound (MEP 10-063) DINITROL-AV-30 or similar,

according to CPM PART 1 TASK 51-25-00-910-001-A.

(4) For blend-out that interferes with the existing fasteners, perform the blend-out as

indicated in Figure 3. Refer to SRM PART II 51-10-03/1 - BLEND-OUT for blend-out

general instructions.

After that, touch-up the reworked area(s), using Epoxy Primer (MEP 10-059)

10-P4-2/EC-117 or similar, according to SRM PART II 51-23-05/1 - SURFACE

PROTECTION - PRIMER, and then, apply Type II Corrosion-Inhibiting Compound

(MEP 10-063) DINITROL-AV-30 or similar, according to CPM PART 1 TASK

51-25-00-910-001-A.

E. If applicable, remove GSE177 from the rear fuselage. Refer to ITEM GSE 177.

F. Close the rear fuselage door 314BR. Refer to AMM SDS 52-45-00/1.

G. Restore the aircraft to normal.

H. Enter the accomplishment of PART I and/or PART II of this bulletin in the applicable

documents.

NOTE: 1) Please inform us by e-mail fleet.reliability@embraer.com.br of the aircraft

manufacturer serial number and the SB incorporation date, specifying the SB

Part(s) incorporated or whether the whole SB has been incorporated. This

will enable Embraer to consider your aircraft configuration when providing

future modifications.

2) To formally inform that the SB has been incorporated fleet-wide or that the

SB will not be incorporated, so that Embraer can update the affected

technical publications, use the “Service Bulletin Full-Fleet Incorporation

Report” form, which is available on the Flyembraer portal

(http://www.flyembraer.com).

SERVICE BULLETIN

DATE: 13/Oct/2009

REVISION No.:01 - 28/Apr/2010

SB No.: 170-53-0082

PAGE: 9

Embraer Copyright © 2010. All rights reserved.
3) Use the attached “Service Bulletin Evaluation” form to send us your

comments regarding this SB. Your feedback will be much appreciated as an

aid to help us improve the quality of the SBs.

SERVICE BULLETIN

SB No.: 170-53-0082

PAGE: 10

DATE: 13/Oct/2009

REVISION No.: 01 - 28/Apr/2010

Embraer Copyright © 2010. All rights reserved.
A

ZONES

311

312

A

STGR 12 LH

STGR 13 LH

RING

BULKHEAD

(REF.)

DOME

(REF.)

STGR 12 RH

STGR 13 RH

RING

BULKHEAD

(REF.)

B

C

EM170SB530827A.DGN

SERVICE BULLETIN

DATE: 13/Oct/2009

REVISION No.:01 - 28/Apr/2010

SB No.: 170-53-0082

PAGE: 11

FIGURE 1 - VISUAL INSPECTION OF THE REAR PRESSURE BULKHEAD RING

(SHEET 01 OF 02)

Embraer Copyright © 2010. All rights reserved.
STGR

13RH

STGR

12RH STGR

12LH

STGR

13LH

B C

D−D

TYPICAL

TH = 4.0 mm

TH = 1.6 mm.

D D

D D

1 1

DOME

DOME

DOME

RING BULKHEAD

1

1

FUSELAGE

RING BULKHEAD RING BULKHEAD INSPECT THIS AREA INSPECT THIS AREA

INSPECT THIS AREA

INSPECT THIS AREA FOR THE PRESENCE OF DRILL MARKS.

EM170SB530828A.DGN

SERVICE BULLETIN

SB No.: 170-53-0082

PAGE: 12

DATE: 13/Oct/2009

REVISION No.: 01 - 28/Apr/2010

FIGURE 1 - VISUAL INSPECTION OF THE REAR PRESSURE BULKHEAD RING

(SHEET 02 OF 02)

Embraer Copyright © 2010. All rights reserved.
A

ZONES

311

312

A

STGR 12 LH

STGR 13 LH

RING

BULKHEAD

(REF.)

DOME

(REF.)

STGR 13 RH

RING

BULKHEAD

(REF.)

B

STGR 12 RH B EM170SB530840A.DGN

SERVICE BULLETIN

DATE: 13/Oct/2009

REVISION No.:01 - 28/Apr/2010

SB No.: 170-53-0082

PAGE: 13

FIGURE 2 - BLEND-OUT WITH NO INTERFERENCE WITH EXISTING RIVETS

(SHEET 01 OF 02)

Embraer Copyright © 2010. All rights reserved.
BOUNDARY

1

2

3

4

5

3

6

2

4 5

6

TYPICAL

TYPICAL

1

L

H

1

H = MAXIMUM BLEND−OUT DEPTH = 0.5 mm.

2

2

2

2

A

C B

D

BLEND−OUT

BOUNDARY

LIMITS OF THE RIVETING AREA ARE 3 mm.

RADIUS CENTERED IN THE RIVET HOLE

A, B, C, D = DISTANCE FROM THE BLEND−OUT BOUNDARY

TO THE RIVETING AREA MUST BE EQUAL TO OR GREATER THAN 0 mm.

BLEND−OUT LENGTH GREATER THAN 40 TIMES BLEND−OUT DEPTH. H

L >40

B

HOLE OR RIVET DIAMETER = 5/32".

BLEND−OUT RADIUS, WHICH MUST BE GREATER THAN 20 mm.

C

C

EM170SB530834A.DGN

SERVICE BULLETIN

SB No.: 170-53-0082

PAGE: 14

DATE: 13/Oct/2009

REVISION No.: 01 - 28/Apr/2010

FIGURE 2 - BLEND-OUT WITH NO INTERFERENCE WITH EXISTING RIVETS

(SHEET 02 OF 02)

Embraer Copyright © 2010. All rights reserved.
A

ZONES

311

312

A

STGR 12 LH

STGR 13 LH

RING

BULKHEAD

(REF.)

DOME

(REF.)

STGR 13 RH

RING

BULKHEAD

(REF.)

B

STGR 12 RH B EM170SB530839A.DGN

SERVICE BULLETIN

DATE: 13/Oct/2009

REVISION No.:01 - 28/Apr/2010

SB No.: 170-53-0082

PAGE: 15

FIGURE 3 - BLEND-OUT OVERLAPS - EXISTING FASTENERS HOLES

(SHEET 01 OF 02)

Embraer Copyright © 2010. All rights reserved.
3

4

1

2

3

4 FILLET RADIUS MINIMUM 12 mm.

C−C

TYPICAL

R 8.0 TYP.

1

2

REMOVE MATERIAL FROM A MAXIMUM OF 3 RIVETS IN A ROW

RIVETS SHOULD BE REMOVED BEFORE THE BLEND−OUT. 

REINSTALL RIVETS AFTER COMPLETING THE REWORK

BULKHEAD WEB

BULKHEAD RING LEG

B

C

C

H

H = DEPTH OF THE REMOVED MATERIAL. D < 0.35 mm.

EM170SB530835A.DGN

SERVICE BULLETIN

SB No.: 170-53-0082

PAGE: 16

DATE: 13/Oct/2009

REVISION No.: 01 - 28/Apr/2010

FIGURE 3 - BLEND-OUT OVERLAPS - EXISTING FASTENERS HOLES

(SHEET 02 OF 02)

Embraer Copyright © 2010. All rights reserved.
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 PUBLICATIONS. PLEASE FILL IN FORM AND RETURN IT TO:

EMBRAER - EMPRESA BRASILEIRA DE AERONÁUTICA S.A.

EFTC - SERVICE BULLETIN ENGINEERING

AV. BRIGADEIRO FARIA LIMA, 2170

SÃO JOSÉ DOS CAMPOS - SP - 12227-901

BRASIL

Fax: + 55 12 3927-6600 (ext. 1624)

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

S.B. Title: S.B.: (Number / Rev.)

Operator:

SB Implementation Report

Aircraft Serial Number or Registration Number: Incorporation Date:

Aircraft Flight Hours: Aircraft Landings:

POST-ACCOMPLISHMENT EVALUATION: (Check applicable squares below)

ESTIMATED MANPOWER: [ ] OK [ ] NOT OK (Explain Below)

MATERIAL & KITS: [ ] OK [ ] NOT OK (Explain Below)

ACCOMPLISHMENT INSTRUCTIONS: [ ] OK [ ] NOT OK (Explain Below)

FIGURES: [ ] OK [ ] NOT OK (Explain Below)

SB GENERAL EVALUATION: [ ] OK [ ] NOT OK (Explain Below)

COMMENTS: (Bulletin quality/ Difficulties found at the time of incorporation/ Suggested improvements/ Other)

Organization: Fax: Phone:

E-mail:

Address: Prepared by:(Name/Title) Date:

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