Commercial 

Airplane

Group 757

Service Bulletin

SPECIAL ATTENTION

Number: 757-25-0298

Date: October 16, 2008

ATA System: 2565

SUBJECT: EQUIPMENT / FURNISHINGS - Emergency Equipment - Off-Wing Escape System -

Change Escape Slide Compartment Door Latch Fittings and Maintenance Access Door

Witness Mark Placards

Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15

CFR 730-774). An export license may be required before it is used for development, production or use by foreign

persons from specific countries. The controller of this data has the individual responsibility to abide by all export

laws.

ECCN: 9E991

BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET

Copyright © 2008 The Boeing Company

Unpublished Work - All Rights Reserved

Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable

subject matter. Boeing also claims copyright in this document as a compilation and/or collective work.

This document includes proprietary information owned by The Boeing Company and/or one or more third parties.

Treatment of the document and the information it contains is governed by contract with Boeing. For more

information, contact The Boeing Company, P.O. Box 3707, Seattle, Washington 98124.

Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner,

BBJ, DC-8, DC-9, DC-10, MD-10, MD-11, MD-80, MD-88, MD-90, and the Boeing livery are all trademarks

owned by The Boeing Company; and no trademark license is granted in connection with this document unless

provided in writing by Boeing.

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2.0
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BOEING SERVICE BULLETIN 757-25-0298

BLANK PAGE
Table of Contents

Summary ..................................................... 5

1. PLANNING INFORMATION ......................................... 9

A. Effectivity ................................................ 9

1. Airplanes ............................................. 9

2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

B. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

C. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

E. Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

F. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

G. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

H. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

I. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

J. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1. Existing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2. Data supplied with this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3. Installation Drawings Used in the Preparation of this Service Bulletin . . . . . . . . . . . . 14

K. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

L. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2. MATERIAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

A. Material - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

B. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

C. Parts Necessary For Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1. Kits/Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2. Parts and Materials Supplied by the Operator . . . . . . . . . . . . . . . . . . . . . . . . 16

3. Parts Modified and Reidentified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4. Parts Removed and Not Replaced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

D. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

E. Special Tooling - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

F. Special Tooling Necessary to do this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . 16

3. ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

A. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

B. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

FIGURE 1: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - REMOVAL . . . . 20

FIGURE 2: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - OFF-WING ESCAPE SLIDE

COMPARTMENT DOOR - CHANGE THE DOOR LATCH FITTINGS . . . . . . . . . . . . 22

FIGURE 3: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - MAINTENANCE ACCESS DOOR - WITNESS

MARK PLACARD CHANGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

FIGURE 4: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - INSTALLATION . . 28

FIGURE 5: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - REMOVAL . . . 30

FIGURE 6: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - OFF-WING ESCAPE SLIDE

COMPARTMENT DOOR - CHANGE THE DOOR LATCH FITTINGS . . . . . . . . . . . . 32

FIGURE 7: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - MAINTENANCE ACCESS DOOR -

WITNESS MARK PLACARD CHANGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

FIGURE 8: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - INSTALLATION . 38

APPENDIX A: ADJUST DOOR LATCH FITTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

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BOEING SERVICE BULLETIN 757-25-0298

BLANK PAGE
Commercial 

Airplane

Group 757

Service Bulletin

SPECIAL ATTENTION

Summary Number: 757-25-0298

Date: October 16, 2008

ATA System: 2565

SUBJECT: EQUIPMENT / FURNISHINGS - Emergency Equipment - Off-Wing Escape System -

Change Escape Slide Compartment Door Latch Fittings and Maintenance Access Door

Witness Mark Placards

BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.

CONCURRENT REQUIREMENTS

Refer to Paragraph 1.B., Concurrent Requirements

BACKGROUND

This service bulletin gives instructions to change the latch fittings to provide positive locking of the off-wing

escape slide compartment door and change the witness mark placards on the door frame of the maintenance

access door. If the change given in this service bulletin is not done, unavailability of escape slide during a

critical-time emergency evacuation could lead passengers to a serious or fatal injury.

Since May 2005, four operators have reported seven events of off-wing escape slide EICAS messages with

in-flight loss of the off-wing escape slide. The off-wing escape slides did not inflate however the carrier rotated

onto the wing which resulted in the loss of the escape slide.

Boeing Service Related Problem (SRP) 757-SRP-25-0265 is related to this service bulletin.

Boeing Fleet Team Digest article number 757-FTD-25-07001 discussed this issue, providing interim action.

ACTION (PRR 54530-283RS)

Disarm the off-wing escape slide system. Open the off-wing escape slide maintenance access door. Open the

off-wing escape slide compartment door. Remove the access door from the container shroud in the main landing

gear wheel well. Remove and install the off-wing escape slide compartment door latch fittings forward and aft.

Remove and install witness mark placards on the door frame of the off-wing escape slide maintenance access

door. Close the off-wing escape slide compartment door. Close the off-wing escape slide maintenance access

door. Install the access door in the container shroud in the main landing gear wheel well. Arm the off-wing escape

slide system.

EFFECTIVITY

757-200, -200CB and -300 Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes.

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COMPLIANCE

The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service

bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin

mandatory.

Boeing recommends that the change, given in this service bulletin be done within 60 months, after the date on

this service bulletin.

INDUSTRY SUPPORT INFORMATION

Boeing warranty remedies are not available for the configuration changes or repair procedures given in this

service bulletin.

MANPOWER

Airplanes Total Task Hours Elapsed Hours

Each Airplane 7.00 3.50

MATERIAL INFORMATION

Boeing Supplied Kits/Parts.

Refer to Paragraph 2.A., Material - Price and Availability.

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BOEING SERVICE BULLETIN 757-25-0298

BLANK PAGE
Commercial 

Airplane

Group 757

Service Bulletin

SPECIAL ATTENTION

Number: 757-25-0298

Date: October 16, 2008

ATA System: 2565

SUBJECT: EQUIPMENT / FURNISHINGS - Emergency Equipment - Off-Wing Escape System -

Change Escape Slide Compartment Door Latch Fittings and Maintenance Access Door

Witness Mark Placards

BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.

1. PLANNING INFORMATION

A. Effectivity

1. Airplanes

Refer to Service Bulletin Index Document D624N001 Part 3 for Airplane Variable Number, Line

Number, and Serial Number data.

This service bulletin is for the airplanes shown below. An equivalent change is on subsequent

production airplanes. Refer to PRR 5430-283RS for data about this change.

GROUP CONFIGURATION DESCRIPTION

757-200, -200CB and -300 Airplanes with off-wing escape slide

systems.

1 -

Airplane Models:

757-200, 757-200CB, 757-300

Variable Number Group

NA501 - NA586 1

NB001 - NB004 1

ND001 - ND007 1

ND011 - ND059 1

ND111 - ND113 1

ND161 - ND199 1

ND201 - ND203 1

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Variable Number Group

ND221 - ND225 1

ND241 - ND248 1

ND301 - ND322 1

ND401 1

ND891 1

ND895 1

NE001 - NE008 1

NE011 - NE088 1

NE091 - NE094 1

NE141 - NE150 1

NE161 - NE177 1

NE201 - NE204 1

NE301 - NE302 1

NE311 - NE325 1

NL001 - NL002 1

NL006 - NL017 1

NL101 - NL109 1

NL141 1

NL601 - NL616 1

NN001 - NN002 1

NN051 - NN052 1

NT701 - NT769 1

NT791 - NT796 1

NT861 - NT862 1

NT881 - NT885 1

NT901 - NT916 1

NT971 - NT985 1

NU031 - NU038 1

NU701 - NU705 1

NU721 - NU728 1

NU731 - NU732 1

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BOEING SERVICE BULLETIN 757-25-0298
2. Spares Affected

Examine your spares supply for the parts or components identified in Paragraph 2.C., Parts

Necessary for Each Airplane. If any parts or components are found, refer to Paragraph 2.C. for

the recommended use.

B. Concurrent Requirements

The service bulletins listed below must be done before or at the same time as this service bulletin:

Company Service Bulletin Description

EQUIPMENT / FURNISHINGS - Emergency

- Off-Wing Escape System - Modification Of

The Door Latch System And The Sensor

Installation

Boeing 757-25-0182 R02

EQUIPMENT / FURNISHINGS - Emergency

- Off-Wing Escape System - Bumper

Assembly And Placards Installation

Boeing 757-25-0200 R01

EQUIPMENT/FURNISHINGS - Emergency

- Off-Wing Escape System - Bumper

Assembly And Placard Installation

Boeing 757-25-0219 R00

C. Reason

This service bulletin gives instructions to change the latch fittings to provide positive locking of the

off-wing escape slide compartment door and change the witness mark placards on the door frame of

the maintenance access door. If the change given in this service bulletin is not done, unavailability of

escape slide during a critical-time emergency evacuation could lead passengers to a serious or fatal

injury.

Since May 2005, four operators have reported seven events of off-wing escape slide EICAS messages

with in-flight loss of the off-wing escape slide. The off-wing escape slides did not inflate however the

carrier rotated onto the wing which resulted in the loss of the escape slide.

Boeing Service Related Problem (SRP) 757-SRP-25-0265 is related to this service bulletin.

D. Description

Disarm the off-wing escape slide system. Open the off-wing escape slide maintenance access door.

Open the off-wing escape slide compartment door. Remove the access door from the container shroud

in the main landing gear wheel well. Remove and install the off-wing escape slide compartment door

latch fittings forward and aft. Remove and install witness mark placards on the door frame of the off-wing

escape slide maintenance access door. Close the off-wing escape slide compartment door. Close the

off-wing escape slide maintenance access door. Install the access door in the container shroud in the

main landing gear wheel well. Arm the off-wing escape slide system.

NOTE: Service bulletin 757-25-0188 has similar access requirements as this service bulletin.

The work in this service bulletin is done in the maintenance zone(s) given below.

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BOEING SERVICE BULLETIN 757-25-0298
Affected Maintenance Zones

Model Zone

757-200, 757-200CB, 757-300 195, 196

E. Compliance

The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to

this service bulletin.The Airworthiness Directive will make the compliance tasks and times given in this

service bulletin mandatory.

Boeing recommends that the change, given in this service bulletin be done within 60 months, after the

date on this service bulletin.

F. Approval

This service bulletin was examined by the Federal Aviation Administration (FAA).The changes specified

in this service bulletin comply with the applicable regulations and are FAA approved, as well as European

Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/JAA approved

airplanes listed in the service bulletin effectivity. This service bulletin and its approval were based on

the airplane in its original Boeing delivery configuration or as modified by other approved Boeing

changes.

If an airplane has a non-Boeing modification or repair that affects a component or system also affected

by this service bulletin, the operator is responsible for obtaining appropriate regulatory agency approval

before incorporating this service bulletin.

G. Manpower

The table below shows an estimate of the task hours necessary to do this service bulletin for each

airplane. This estimate is for direct labor only, done by an experienced crew. Adjust the estimate with

operator task hour data if necessary.The estimate does not include lost time.These are some examples

of lost time:

• Time to adjust to the workplace

• Time to schedule the work

• Time to inspect the work

• Time to cure the materials

• Time to make the parts

• Time to find the tools.

Left Side and Right Side - Change Door Latch Fitting and Witness Placard of Off-Wing

Escape Slide Compartment Door

Number of Task Hours Elapsed Hours

Persons

Task

Open Access 2 0.20 0.10

Figure 1 2 0.60 0.30

Figure 2 2 1.00 0.50

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BOEING SERVICE BULLETIN 757-25-0298
Left Side and Right Side - Change Door Latch Fitting and Witness Placard of Off-Wing

Escape Slide Compartment Door

Number of Task Hours Elapsed Hours

Persons

Task

Figure 3 2 1.20 0.60

Figure 4 2 0.50 0.25

Figure 5 2 0.60 0.30

Figure 6 2 1.00 0.50

Figure 7 2 1.20 0.60

Figure 8 2 0.50 0.25

Close Access 2 0.20 0.10

TOTAL FOR EACH AIRPLANE 7.00 * 3.50 *

* Time to incorporate Boeing Service bulletins 757-25-0182, 757-25-0200, and

757-25-0219 is not included.

H. Weight and Balance Changes

Change in Moment

(Pound-Inches)

Change in Weight

Airplane (Pounds)

Negligible

Pound-Inches

All Negligible Pounds

I. Electrical Load Data

Not changed.

J. References

1. Existing Data

a. Engineering Change Memo PRR 54530-283RS

b. Service Related Problem (SRP) 757-SRP-25-0265

c. Standard Overhaul Practices Manual (SOPM) 20-30-03, 20-50-05

d. 757 Aircraft Maintenance Manual (AMM) 25-65-00, 25-65-01, 25-65-09

e. Boeing Service Bulletin 757-25-0182

f. Boeing Service Bulletin 757-25-0188

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BOEING SERVICE BULLETIN 757-25-0298
g. Boeing Service Bulletin 757-25-0200

h. Boeing Service Bulletin 757-25-0219

i. Boeing Fleet Team Digest 757-FTD-25-07001

2. Data supplied with this Service Bulletin

None.

3. Installation Drawings Used in the Preparation of this Service Bulletin

None..

K. Publications Affected

Publication Chapter-Section

757 Maintenance Manual 11-21, 25-65

757 Illustrated Part Catalog 25-65

Component Maintenance Manual 25-65

Overhaul Manual 25-65

L. Interchangeability and Intermixability of Parts

Refer to Paragraph 2.C., Parts Necessary for Each Airplane, for interchangeability and intermixability

information.

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BOEING SERVICE BULLETIN 757-25-0298
2. MATERIAL INFORMATION

A. Material - Price and Availability

Boeing can supply the kits/parts shown in Paragraph 2.C., Parts Necessary for Each Airplane , as

shown below. If there is a limit in the quantity (QTY) of kits/parts, a supply sequence is given by Spares.

Unit Price thru

December 31, 2008

Kit/Part Number Name Date QTY

Top Kit - Door Latch Fitting 03/16/2009 25 $1,365.00

and Witness Mark Placard

012N8928-121

Top Kit - Door Latch Fitting 03/23/2009 25 $1,365.00

and Witness Mark Placard

012N8928-121

The kits/parts are subject to the terms and conditions of the Boeing standard purchase order

acknowledgment. After the Unit Price date, new price and ROLT data is applicable. Prices are in United

States dollars. Terms: Net 30 days.

Reference this service bulletin and submit your purchase order by one of the methods that

follow:

1. Order on-line via ATA Spec 2000 or Boeing Part Page

2. Fax to (206) 662-7145

3. Spares Customer Support - MC 36-65

Boeing Spares Department

P.O. Box 3707

Seattle, Washington 98124-2207 USA

B. Industry Support Information

Boeing warranty remedies are not available for the configuration changes or repair procedures given

in this service bulletin.

C. Parts Necessary For Each Airplane

1. Kits/Parts

To get the kits/parts shown below, refer to Paragraph 2.A., Material - Price and Availability.

NOTE: One top kit and the items shown in Paragraph 2.C.2., Parts and Materials Supplied by

the Operator, are necessary for each airplane.

Top Kit Number 012N8928-121

New Part Number QTY Name Existing Part Number Notes

416N2623-75 2 Door Latch Fitting 416N2623-71 (a), (b)

416N2623-76 2 Door Latch Fitting 416N2623-71 (a), (b)

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BOEING SERVICE BULLETIN 757-25-0298
Top Kit Number 012N8928-121

New Part Number QTY Name Existing Part Number Notes

BAC27NBY103 2 Witness Mark Placard BAC29PPS37740 (a), (b), (c)

BAC27NBY104 2 Witness Mark Placard BAC29PPS37741 (a), (b), (d)

(a) You cannot use the existing part to replace the new or changed part.

(b) Discard the existing part.

(c) New part number BAC27NBY103 quantity is 2 and existing part number BAC29PPS37740 quantity is

1.

(d) New part number BAC27NBY104 quantity is 2 and existing part number BAC29PPS37741 quantity is

1.

2. Parts and Materials Supplied by the Operator

Part Number / Specification QTY Name Notes

BMS 11-7, Type 1 or Type 2 16 oz. Solvent (a)

BMS 10-26, Type 7, Grade A 4 oz. Polyester (a)

(a) See the Qualified Products List at the end of the Boeing Material Specification (BMS) for supplier

data.

3. Parts Modified and Reidentified

None.

4. Parts Removed and Not Replaced

None.

D. Parts Necessary to Change Spares

None.

E. Special Tooling - Price and Availability

None.

F. Special Tooling Necessary to do this Service Bulletin

No special tools or equipment are necessary to do the change in this service bulletin. But, maintenance

and overhaul tools in the manuals given in Paragraph 1.J., References, can be necessary. Examine

operator tool supply to make sure all necessary tools are available.

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BOEING SERVICE BULLETIN 757-25-0298
3. ACCOMPLISHMENT INSTRUCTIONS

A. GENERAL INFORMATION

CAUTION: KEEP THE WORK AREA, WIRES AND ELECTRICAL BUNDLES CLEAN OF METAL

PARTICLES OR CONTAMINATION WHEN YOU USE TOOLS. UNWANTED MATERIAL,

METAL PARTICLES OR CONTAMINATION CAUGHT IN WIRE BUNDLES CAN CAUSE

DAMAGE TO THE BUNDLES. DAMAGED WIRE BUNDLES CAN CAUSE SPARKS OR

OTHER ELECTRICAL DAMAGE.

NOTE: 1. The instructions identified in Paragraph 3.B., Work Instructions and the Figures give

the recommended sequence of steps. The sequence of steps to do this service

bulletin can be changed.

2. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for

definition of the acronyms.

3. Obey all of the warnings and cautions given in the specified manual sections.

4. Unless shown differently, these dimensions and tolerances are used:

– Torque limits to tighten nuts and bolts are given in 757 SRM, Chapter 51

5. For approved fastener and process material substitutions, refer to 757 SRM, Chapter

51. Alternate fasteners are given in 757 SRM Chapter 51.

6. These work instructions refer to procedures included in other Boeing documents.

When the words "refer to" are used and the operator has an accepted alternative

procedure, the accepted alternative procedure can be used. When the words "as

given in" are included in the instruction, the procedure in the Boeing document must

be used.

B. WORK INSTRUCTIONS

1. Disarm the off-wing escape slide system. Refer to 757 AMM 25-65-00 as an accepted procedure.

2. Open these circuit breakers and attach DO-NOT-CLOSE identifiers:

PANEL P6 CIRCUIT BREAKER LOCATION

EVAC SIGNAL * C4435 C004

EMER ESCAPE - L C4343 C005

EMER ESCAPE - R C4344 C006

* If installed.

PANEL P11 CIRCUIT BREAKER LOCATION

EMER ESCAPE TEST C4320 C001

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BOEING SERVICE BULLETIN 757-25-0298
DOOR IND C4144 R033

WARNING: DO NOT WORK NEAR THE SLIDE COMPARTMENT DOOR UNTIL THE SYSTEM IS

FULLY DISARMED ELECTRICALLY AND MECHANICALLY. IF THE ESCAPE SLIDE

ACCIDENTALLY INFLATES, INJURY OR DAMAGE CAN OCCUR.

3. Left side - Off -Wing escape slide system.

a. Open the off-wing escape slide maintenance access door. Refer to 757 AMM 25-65-00 as an

accepted procedure.

b. Open the off-wing escape slide compartment door. Refer to 757 AMM 25-65-09 as an accepted

procedure.

c. Remove the access door from the container shroud as given in Figure 1.

d. Change the off-wing escape slide door latch fittings as given in Figure 2.

e. Change the off-wing escape slide system witness mark placards as given in Figure 3.

f. Close the off-wing escape slide compartment door. Refer to 757 AMM 25-65-09 as an accepted

procedure.

g. Close the off-wing escape slide maintenance access door. Refer to 757 AMM 25-65-00 as

an accepted procedure.

h. Install the access door in the container shroud as given in Figure 4.

4. Right side - Off -Wing escape slide system.

a. Open the off-wing escape slide maintenance access door. Refer to 757 AMM 25-65-00 as an

accepted procedure.

b. Open the off-wing escape slide compartment door. Refer to 757 AMM 25-65-09 as an accepted

procedure.

c. Remove the access door from the container shroud as given in Figure 5.

d. Change the off-wing escape slide door latch fittings as given in Figure 6.

e. Change the off-wing escape slide system witness mark placards as given in Figure 7.

f. Close the off-wing escape slide compartment door. Refer to 757 AMM 25-65-09 as an accepted

procedure.

g. Close the off-wing escape slide maintenance access door. Refer to 757 AMM 25-65-00 as

an accepted procedure.

h. Install the access door in the container shroud as given in Figure 8.

5. Close these circuit breakers, and remove DO-NOT-CLOSE identifiers:

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BOEING SERVICE BULLETIN 757-25-0298
PANEL P6 CIRCUIT BREAKER LOCATION

EVAC SIGNAL * C4435 C004

EMER ESCAPE - L C4343 C005

EMER ESCAPE - R C4344 C006

* If installed.

PANEL P11 CIRCUIT BREAKER LOCATION

EMER ESCAPE TEST C4320 C001

DOOR IND C4144 R033

6. Arm the off-wing escape slide system. Refer to 757 AMM 25-65-00 as an accepted procedure.

7. Put the airplane back to a serviceable condition.

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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BOEING SERVICE BULLETIN 757-25-0298
FIGURE 1: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - REMOVAL

(SHEET 1 OF 2)

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BOEING SERVICE BULLETIN 757-25-0298
The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for one side of airplane.

STEP TASK NAME IDENTIFICATION QTY MORE DATA

Refer to 757 AMM 25-65-01 as

an accepted procedure.

BACB30NN3K5 or 18

BACB30NN3K7

1 Remove/Keep Bolt

Access Door 140N0811-3 1

FIGURE 1: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - REMOVAL

(SHEET 2 OF 2)

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BOEING SERVICE BULLETIN 757-25-0298
FIGURE 2: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - OFF-WING ESCAPE SLIDE COMPARTMENT

DOOR - CHANGE THE DOOR LATCH FITTINGS

(SHEET 1 OF 3)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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BOEING SERVICE BULLETIN 757-25-0298
The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for one side of airplane.

STEP TASK NAME IDENTIFICATION QTY MORE DATA

1 Remove/Keep Nut - 2

Washer - 2

Remove Door Latch Fitting 416N2623-71 1

Note: If shim is installed. Keep shim in original position.

2 Remove/Keep Nut - 2

Washer - 2

Remove Door Latch Fitting 416N2623-71 1

Note: If shim is installed. Keep shim in original position.

Refer to SOPM 20-30-03 as an

accepted procedure.

BMS 11-7, Type 1 or 16 oz.

Type 2

3 Clean Surfaces

FIGURE 2: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - OFF-WING ESCAPE SLIDE COMPARTMENT

DOOR - CHANGE THE DOOR LATCH FITTINGS

(SHEET 2 OF 3)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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BOEING SERVICE BULLETIN 757-25-0298
STEP TASK NAME IDENTIFICATION QTY MORE DATA

4 Install (new) Door Latch Fitting 416N2623-75 1

Install (Kept) Washer - 2

Nut - 2

Note: If shim is installed, shim to remain in original position.

5 Install (new) Door Latch Fitting 416N2623-76 1

Install (Kept) Washer - 2

Nut - 2

Note: If shim is installed, shim to remain in original position.

6 Adjust Door Latch Fitting 416N2623-75 1 As given in Appendix A.

416N2623-76 1

FIGURE 2: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - OFF-WING ESCAPE SLIDE COMPARTMENT

DOOR - CHANGE THE DOOR LATCH FITTINGS

(SHEET 3 OF 3)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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BOEING SERVICE BULLETIN 757-25-0298
FIGURE 3: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - MAINTENANCE ACCESS DOOR - WITNESS

MARK PLACARD CHANGE

(SHEET 1 OF 3)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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BOEING SERVICE BULLETIN 757-25-0298
FIGURE 3: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - MAINTENANCE ACCESS DOOR - WITNESS

MARK PLACARD CHANGE

(SHEET 2 OF 3)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

October 16, 2008

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BOEING SERVICE BULLETIN 757-25-0298
The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for one side of airplane.

STEP TASK NAME IDENTIFICATION QTY MORE DATA

Refer to SOPM 20-50-05 as an

accepted procedure.

Witness Mark BAC29PPS37740 1

Placard

1 Remove

Refer to SOPM 20-30-03 as an

accepted procedure.

BMS 11-7, Type 1 or 16 oz.

Type 2

2 Clean Surfaces

(a). Refer to SOPM 20-50-05 as

an accepted procedure.

Witness Mark BAC27NBY103 2

Placard

3 Install (new)

Refer to SOPM 20-50-05 as an

accepted procedure.

BMS 10-26, Type 7, 4 oz.

Grade A

Continuous Edge

Seal

4 Apply

Refer to SOPM 20-50-05 as an

accepted procedure.

BMS 10-26, Type 7, 4 oz.

Grade A

5 Apply Clear Overcoat

(a) Placards aligned with inner edge of the door frame of the maintenance access door.Yellow band on

placard aligned with actuator crank handle in the fully down and locked position.

FIGURE 3: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - MAINTENANCE ACCESS DOOR - WITNESS

MARK PLACARD CHANGE

(SHEET 3 OF 3)

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BOEING SERVICE BULLETIN 757-25-0298
FIGURE 4: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - INSTALLATION

(SHEET 1 OF 2)

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BOEING SERVICE BULLETIN 757-25-0298
he step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for one side of airplane.

STEP TASK NAME IDENTIFICATION QTY MORE DATA

Refer to 757 AMM 25-65-01 as

an accepted procedure.

1 Install (Kept) Access Door 140N0811-3 1

BACB30NN3K5 or 18

BACB30NN3K7

Bolt

FIGURE 4: LEFT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - INSTALLATION

(SHEET 2 OF 2)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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BOEING SERVICE BULLETIN 757-25-0298
FIGURE 5: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - REMOVAL

(SHEET 1 OF 2)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

October 16, 2008

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BOEING SERVICE BULLETIN 757-25-0298
he step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for one side of airplane.

STEP TASK NAME IDENTIFICATION QTY MORE DATA

Refer to 757 AMM 25-65-01 as

an accepted procedure.

BACB30NN3K5 or 18

BACB30NN3K7

1 Remove/Keep Bolt

Access Door 140N0811-4 1

FIGURE 5: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - REMOVAL

(SHEET 2 OF 2)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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BOEING SERVICE BULLETIN 757-25-0298
FIGURE 6: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - OFF-WING ESCAPE SLIDE COMPARTMENT

DOOR - CHANGE THE DOOR LATCH FITTINGS

(SHEET 1 OF 3)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

October 16, 2008

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BOEING SERVICE BULLETIN 757-25-0298
he step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for one side of airplane.

STEP TASK NAME IDENTIFICATION QTY MORE DATA

1 Remove/Keep Nut - 2

Washer - 2

Remove Door Latch Fitting 416N2623-71 1

Note: If shim is installed. Keep shim in original position.

2 Remove/Keep Nut - 2

Washer - 2

Remove Door Latch Fitting 416N2623-71 1

Note: If shim is installed. Keep shim in original position.

Refer to SOPM 20-30-03 as an

accepted procedure.

BMS 11-7, Type 1 or 16 oz.

Type 2

3 Clean Surfaces

FIGURE 6: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - OFF-WING ESCAPE SLIDE COMPARTMENT

DOOR - CHANGE THE DOOR LATCH FITTINGS

(SHEET 2 OF 3)

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BOEING SERVICE BULLETIN 757-25-0298
STEP TASK NAME IDENTIFICATION QTY MORE DATA

4 Install (new) Door Latch Fitting 416N2623-75 1

Install (Kept) Washer - 2

Nut - 2

Note: If shim is installed, shim to remain in original position.

5 Install (new) Door Latch Fitting 416N2623-76 1

Install (Kept) Washer - 2

Nut - 2

Note: If shim is installed, shim to remain in original position.

6 Adjust Door Latch Fitting 416N2623-75 1 As given in Appendix A.

416N2623-76 1

FIGURE 6: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - OFF-WING ESCAPE SLIDE COMPARTMENT

DOOR - CHANGE THE DOOR LATCH FITTINGS

(SHEET 3 OF 3)

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BOEING SERVICE BULLETIN 757-25-0298
FIGURE 7: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - MAINTENANCE ACCESS DOOR - WITNESS

MARK PLACARD CHANGE

(SHEET 1 OF 3)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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BOEING SERVICE BULLETIN 757-25-0298
FIGURE 7: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - MAINTENANCE ACCESS DOOR - WITNESS

MARK PLACARD CHANGE

(SHEET 2 OF 3)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

October 16, 2008

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BOEING SERVICE BULLETIN 757-25-0298
he step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for one side of airplane.

STEP TASK NAME IDENTIFICATION QTY MORE DATA

Refer to SOPM 20-50-05 as an

accepted procedure.

Witness Mark BAC29PPS37741 1

Placard

1 Remove

Surfaces. Refer to SOPM

20-30-03 as an accepted

procedure.

BMS 11-7, Type 1 or 16 oz.

Type 2

2 Clean

(a). Refer to SOPM 20-50-05 as

an accepted procedure.

Witness Mark BAC27NBY104 2

Placard

3 Install (new)

Refer to SOPM 20-50-05 as an

accepted procedure.

BMS 10-26, Type 7, 4 oz.

Grade A

Continuous Edge

Seal

4 Apply

Refer to SOPM 20-50-05 as an

accepted procedure.

BMS 10-26, Type 7, 4 oz.

Grade A

5 Apply Clear Overcoat

(a) Placards aligned with inner edge of the door frame of the maintenance access door.Yellow band on

placard aligned with actuator crank handle in the fully down and locked position.

FIGURE 7: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - MAINTENANCE ACCESS DOOR - WITNESS

MARK PLACARD CHANGE

(SHEET 3 OF 3)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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BOEING SERVICE BULLETIN 757-25-0298
FIGURE 8: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - INSTALLATION

(SHEET 1 OF 2)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

October 16, 2008

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BOEING SERVICE BULLETIN 757-25-0298
he step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for one side of airplane.

STEP TASK NAME IDENTIFICATION QTY MORE DATA

Refer to 757 AMM 25-65-01 as

an accepted procedure.

1 Install (Kept) Access Door 140N0811-4 1

BACB30NN3K5 or 18

BACB30NN3K7

Bolt

FIGURE 8: RIGHT SIDE OFF-WING ESCAPE SLIDE SYSTEM - ACCESS DOOR - INSTALLATION

(SHEET 2 OF 2)

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BOEING SERVICE BULLETIN 757-25-0298
1. This is a two person operation.

(a) Person 1 - Locate person 1 on wing trailing edge by the off-wing escape slide system to get access to the

escape slide compartment door.

(b) Person 2 - Locate person 2 at the escape slide maintenance access door and as needed in the main landing

gear wheel well at the access door for the escape slide pack.

2. Person 2 - Open maintenance access door and make sure yellow crank handle is in the up and unlocked

position.

3. Person 1 - With the escape slide compartment door in the closed position, make sure the exterior side of the

door is flush with the fuselage at the lower forward and aft sides

4. Person 2 - Make sure the door latch fittings are not engaged with the door latch tube studs.

5. Person 1 - Release pressure on the door and make sure the lower forward and aft side remain ajar. If the

door does not remain ajar, have door latch fittings adjusted. Tighten screws.

6. Person 1 - With the escape slide compartment door in the closed position, make sure the exterior side of the

door is flush with the fuselage at the lower forward and aft sides.

7. Person 2 - Open maintenance access door, lift the release trigger and move the yellow crank handle to the

fully down and locked position. Make sure the door latch fittings are fully engaged with the door latch tube studs.

8. Person 2 - Move the yellow crank handle to the to the fully up and unlocked position and make sure the escape

slide compartment door opens. If the slide compartment door does not open freely, repeat step 5.

APPENDIX A: ADJUST DOOR LATCH FITTING

(SHEET 1 OF 1)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

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BOEING SERVICE BULLETIN 757-25-0298