# Boeing Special Attention Service Bulletin 747-25-3428: U.S. DOT/FAA - Boeing Service Bulletin

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- Document: [Boeing Special Attention Service Bulletin 747-25-3428](https://openairdocs.org/service-documents/boeing/sb-747-25-3428.md)
- Title as filed: U.S. DOT/FAA - Boeing Service Bulletin
- Pages: 104
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## Text

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### Page 1

Commercial 
Airplanes
747
Service Bulletin
SPECIAL ATTENTION
Number: 747-25-3428
Original Issue: January 31, 2008
Revision 4: February 25, 2013
ATA System: 2560
SUBJECT: EQUIPMENT/FURNISHINGS - Emergency Equipment - Escape Slide/Raft Latch
Replacement
Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15
CFR 300-774). 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.
9E991ECCN:
BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET
Copyright © 2008 Boeing.
Unpublished Work. All Rights Reserved.
Treatment of this document and its content is governed by contract with Boeing. Rights to use this document
are licensed on a per aircraft basis and such rights may not be transferable. For more information, contact The
Boeing Company.
Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner™,
BBJ, DC-8, DC-9, DC-10, KC-10, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, Poseidon and Boeing
liveries 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. BOEING is a trademark of Boeing Management
Company.
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747-25-3428Revision 4: February 25, 2013
1 of 104
3.0

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Table of Contents
Revision Transmittal Sheet ............................................ 5
Summary ...................................................... 7
1. PLANNING INFORMATION ........................................ 1 3
A. Effectivity ............................................... 1 3
1. Airplanes ............................................ 1 3
2. Spares Affected ........................................ 2 7
B. Concurrent Requirements ...................................... 2 7
C. Reason ................................................ 2 7
D. Description .............................................. 2 9
E. Compliance .............................................. 3 2
F. Approval ............................................... 3 2
G. Manpower .............................................. 3 3
H. Weight and Balance Changes .................................... 3 7
I. Electrical Load Data ......................................... 3 7
J. References .............................................. 3 7
1. Existing Data: ......................................... 3 7
2. Data Supplied with this Service Bulletin: ........................... 3 9
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 3 9
K. Publications Affected ........................................ 3 9
L. Interchangeability and Intermixability of Parts ........................... 3 9
M. Software Accomplishment Summary ................................ 3 9
2. MATERIAL INFORMATION ........................................ 4 1
A. Material - Price and Availability ................................... 4 1
B. Industry Support Information .................................... 4 1
C. Parts Necessary for Each Airplane ................................. 4 2
1. Kits/Parts: ........................................... 4 2
2. Parts and Materials Supplied by the Operator: ........................ 4 2
3. Parts Modified and Reidentified: ............................... 4 3
4. Parts Removed and Not Replaced: .............................. 4 5
D. Parts Necessary to Change Spares ................................. 4 5
E. Special Tooling - Price and Availability ............................... 4 6
F. Special Tooling Necessary to do this Service Bulletin ....................... 4 6
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 4 7
A. GENERAL INFORMATION ..................................... 4 7
B. WORK INSTRUCTIONS ....................................... 4 7
FIGURE 1: DOORS 1, 2, 3, AND 4 ESCAPE SLIDE/RAFT PACK ASSEMBLY REMOVAL [Group 1-2] . 53
FIGURE 2: DOORS 1, 2, 4, AND 5 ESCAPE SLIDE/RAFT PACK ASSEMBLY REMOVAL [Group 3,
Configuration 3-4; Group 5-7, 10-23] ............................. 5 5
FIGURE 3: DOORS 1, 2, 4, AND 5 ESCAPE SLIDE/RAFT PACK ASSEMBLY REMOVAL [Group 8] . 57
FIGURE 4: DOOR 3 ESCAPE SLIDE PACK ASSEMBLY REMOVAL [Group 3, Configuration 1, 3; Group
4-6, Configuration 1; Group 7; Group 9-10, 13-17, 21-23, Configuration 1] ......... 5 9
FIGURE 5: DOOR 3 ESCAPE SLIDE PACK ASSEMBLY REMOVAL [Group 8] ............ 6 1
FIGURE 6: ESCAPE SLIDE/RAFT LATCH ASSEMBLY REMOVAL [Group 1-2; Group 3, Configuration 4;
Group 5-6, 10, Configuration 2; Group 11-12; Group 13-15, Configuration 2; Group 15,
Configuration 3; Group 16, Configuration 2-3; Group 17, Configuration 2-3; Group 18-20; Group
21-22, Configuration 2; Group 22, Configuration 3; Group 23, Configuration 2] ....... 6 3
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FIGURE 7: ESCAPE SLIDE LATCH ASSEMBLY REMOVAL [Group 3-4, 9, Configuration 1] ..... 6 5
FIGURE 8: ESCAPE SLIDE/RAFT AND ESCAPE SLIDE LATCH ASSEMBLY REMOVAL [Group 3,
Configuration 3; Group 5-6, Configuration 1; Group 7; Group 10, 13-17, 21-23, Configuration 1]
.................................................. 6 6
FIGURE 9: ESCAPE SLIDE/RAFT AND ESCAPE SLIDE LATCH ASSEMBLY REMOVAL [Group 8] . 68
FIGURE 10: ESCAPE SLIDE/RAFT AND ESCAPE SLIDE LATCH REPLACEMENT .......... 7 0
FIGURE 11: ESCAPE SLIDE/RAFT LATCH ASSEMBLY INSTALLATION [Group 1-2; Group 3, Configuration
4; Group 5-6, 10, Configuration 2; Group 11-12; Group 13-15, Configuration 2; Group 15,
Configuration 3; Group 16, Configuration 2-3; Group 17, Configuration 2-3; Group 18-20; Group
21-22, Configuration 2; Group 22, Configuration 3; Group 23, Configuration 2] ....... 7 1
FIGURE 12: ESCAPE SLIDE LATCH ASSEMBLY INSTALLATION [Group 3-4, 9, Configuration 1] . . 73
FIGURE 13: ESCAPE SLIDE/RAFT AND ESCAPE SLIDE LATCH ASSEMBLY INSTALLATION [Group 3,
Configuration 3; Group 5-6, Configuration 1; Group 7; Group 10, 13-17, 21-23, Configuration 1]
.................................................. 7 5
FIGURE 14: ESCAPE SLIDE/RAFT AND ESCAPE SLIDE LATCH ASSEMBLY INSTALLATION [Group 8]
.................................................. 7 7
FIGURE 15: DOORS 1, 2, 3, AND 4 ESCAPE SLIDE/RAFT PACK ASSEMBLY INSTALLATION [Group 1-2]
.................................................. 7 9
FIGURE 16: DOORS 1, 2, 4, AND 5 ESCAPE SLIDE/RAFT PACK ASSEMBLY INSTALLATION [Group 3,
Configuration 3-4; Group 5-7, 10-23] ............................. 8 1
FIGURE 17: DOORS 1, 2, 4, AND 5 ESCAPE SLIDE/RAFT PACK ASSEMBLY INSTALLATION [Group 8]
.................................................. 8 3
FIGURE 18: DOOR 3 ESCAPE SLIDE PACK ASSEMBLY INSTALLATION [Group 3, Configuration 1, 3;
Group 4-6, Configuration 1; Group 7; Group 9-10, 13-17, 21-23, Configuration 1] ..... 8 5
FIGURE 19: DOOR 3 ESCAPE SLIDE PACK ASSEMBLY INSTALLATION [Group 8] .......... 8 7
FIGURE 20: ESCAPE SLIDE/RAFT AND ESCAPE SLIDE LATCH REPLACEMENT .......... 8 9
FIGURE 21: ESCAPE SLIDE/RAFT LATCH ASSEMBLY - REWORK [Group 1-2; Group 3, Configuration 1,
3-4; Group 4, Configuration 1; Group 5-8; Group 9, Configuration 1; Group 10-23] .... 9 0
FIGURE 22: ESCAPE SLIDE/RAFT LATCH ASSEMBLY - REPLACE [Group 1-2; Group 3, Configuration 1,
3-4; Group 4, Configuration 1; Group 5-8; Group 9, Configuration 1; Group 10-23] .... 9 4
FIGURE 23: ESCAPE SLIDE/RAFT LATCH ASSEMBLY - REWORK OR REPLACE [Group 24] .... 9 6
FIGURE 24: ESCAPE SLIDE/RAFT LATCH ASSEMBLY - REPLACE [Group 24] ........... 1 0 1
Appendix A: CORRECTLY ASSEMBLED SS112A1, SS112A11 OR SS112A12 LATCH DETERMINATION.
................................................. 1 0 4
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Commercial 
Airplanes
747
Service Bulletin
SPECIAL ATTENTION
Revision Transmittal SheetNumber: 747-25-3428Original Issue: January 31, 2008
Revision 4: February 25, 2013
ATA System: 2560
SUBJECT: EQUIPMENT/FURNISHINGS - Emergency Equipment - Escape Slide/Raft Latch
Replacement
This revision includes all pages of the service bulletin.
COMPLIANCE INFORMATION RELATED TO THIS REVISION
No more work is necessary on the airplane(s) changed in accordance with Revision 3 of this service bulletin.
More work is necessary on the airplane(s) changed in accordance with the original issue, Revision 1, or Revision
2 of this service bulletin.
REASON FOR REVISION
This revision is sent to change a reference to the Component Maintenance Manual (CMM) and add optional
part numbers from previously incorporated service bulletins. Also, to remove recently converted 747-400BCF
Airplanes, RT061, RT530, RT654, RT691, and RT692, from the effectivity of this service bulletin.
These sections were changed:
1. In Paragraph 1.A.1., Airplanes, removed Airplanes, RT061, RT530, RT654, RT691, and RT692, from
the effectivity of this service bulletin.
2. In Paragraph 1.J.1., Existing Data, added two service bulletins.
3. In Paragraph 2.A., Material - Price and Availability, the existing pricing is correct for this revision.
4. In Paragraph 2.C.3., Parts Modified and Reidentified, clarified existing part numbers.
5. In FIGURE 3 and FIGURE 5, clarfied existing part numbers.
6. In FIGURE 11, FIGURE 12 and FIGURE 13, added optional part number.
7. In FIGURE 14, added optional part number and changed more data reference.
8. In FIGURE 15, FIGURE 16, FIGURE 17, FIGURE 18 and FIGURE 19, added optional part numbers
and clarified more data.
9. In FIGURE 23 and FIGURE 24, added optional part numbers.
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Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity, to show the location
of important changes.
Pages with no vertical lines have no important changes.
REVISION HISTORY
January 31, 2008Original Issue:
August 21, 2008Revision 1:
March 04, 2010Revision 2:
June 14, 2012Revision 3:
February 25, 2013Revision 4:
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Commercial 
Airplanes
747
Service Bulletin
SPECIAL ATTENTION
SummaryNumber: 747-25-3428Original Issue: January 31, 2008
Revision 4: February 25, 2013
ATA System: 2560
SUBJECT: EQUIPMENT/FURNISHINGS - Emergency Equipment - Escape Slide/Raft Latch
Replacement
BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.
CONCURRENT REQUIREMENTS
Group 1, 5, 10, 13:
For airplanes in Groups 1, 5, 10, and 13, the changes in this service bulletin cannot be made unless the changes
given in Boeing service bulletin 747-25-2425, Revision 01, or the original issue are made.
Group 1, 5, 10, 13:
Service Bulletin 747-25-2425 describes procedures to install a new improved packboard latch, eliminate problems
with the remote warning pressure vessel pressure gauge installed in doors, and to provide a packboard installation
of improved design to reduce abrasion and punctures of slide/rafts from capnuts within the packboard. The
changes given in service bulletin 747-25-2425 were made on Groups 2, 3, 6, 7, 11-12, 14-23 airplanes before
delivery.
The related Goodrich service bulletin is Goodrich Aerospace SB 25-367 Revision 1. The changes in this service
bulletin cannot be made unless the changes given in Goodrich Aerospace SB 25-367Revision 1 are made.
Goodrich Aerospace SB 25-367 Revision 1 describes procedures to remove, open/unpack the escape slide
pack assembly and restore it after the packboard latch is changed.
BACKGROUND
This service bulletin is prepared to replace worn or not correctly assembled latches on main deck escape
slide/rafts and the escape slides installed on airplane doors. A worn or not correctly assembled latch mechanism
can allow an escape slide/raft or escape slide to disconnect from a door. If this service bulletin is not done,
operators may experience incidents of a latch hook moving from the closed to the open position. A slide/raft or
slide with a latch hook in the open position could possibly not deploy correctly. A free item of mass could release
or inflate in the cabin and cause injury to passengers and personnel. Also, a slide/raft or slide that accidentally
deploys will not be available in an emergency.
The installed main deck escape slide/raft and escape slide latch use friction to keep the latch hook in the closed
position. Corrosion and worn parts reduce friction between the parts of the latch that keep it in its closed position.
The new latch uses a retention feature for the latch to make sure it stays in the closed position.
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The vendor earlier disclosed that a limited number of SS112A1 and SS112A11 latches had not been correctly
assembled. Service Bulletin 747-25-3402 inspected and replaced latches by date of manufacture. The vendor
has since disclosed that any SS112A1 or SS112A11 latch may not be correctly assembled. This bulletin makes
sure latches are correctly assembled and replaces any that are not.
In response to 747 passenger fleet operator reports that main deck door escape slide/raft and ramp/slide latches
have been observed to not be in the fully closed position in service, Boeing released Service Bulletin 747-25-3428
Revision 2 to add positive latch handle retention blocks to the latch handle in the closed position. Unfortunately,
Boeing has received subsequent reports that the latch handles are still being observed in a partially open position
after the positive latch handle retention block features had been installed. Therefore, Boeing 747-SRP-25-0300
was initiated to correct this anomaly. Service Bulletin 747-25-3428 Revision 3 was issued to resolve the escape
slide/raft or ramp/slide latch handle migration issue.
Boeing Service Related Problems (SRP) 747/747OP-SRP-25-0253 and 747-SRP-25-0274 are related to this
service bulletin.
This table is provided to operators for planning purposes only. Refer to the applicable sections for more
information.
ReferenceAffectedPlanning Data
Paragraph 1.A.2., Spares AffectedYesSpares Affected
Paragraph 1.E., ComplianceYesAD Related
Paragraph 1.H., Weight and Balance ChangesYesWeight and Balance Change
Paragraph 1.I., Electrical Load DataNoElectrical Load Changed
Paragraph 1.K., Publications AffectedYesPublications Affected
Paragraph 1.K., Publications AffectedNoAirplane Flight Operations Affected (Flight Crew
Operations Manual and/or FAA Approved Air-
plane Flight Manual)
Paragraph 2.C.1., Kits/PartsYesKits/Parts Required
Paragraph 2.C.2., Parts and Materials Supplied
by the Operator
YesOperator Supplied Material
Paragraph 2.F., Special Tooling Necessary to
do this Service Bulletin
NoSpecial Tooling Required
ACTION (PRR 85901-115RS)
Group 3-4, 9, Configuration 2:
No work is necessary.
Group 1-2; Group 3, Configuration 1, 3-4; Group 4, Configuration 1; Group 5-8; Group 9, Configuration
1; Group 10-24:
Option 1 - Rework/Assemble Latch Assembly
1. Remove the escape slide/raft and/or the escape slide pack assembly.
2. Make sure the latch is correctly assembled.
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3. Remove the escape slide/raft and/or the escape slide latch assembly.
Condition 1 - Latch Correctly Assembled (Rework Latch Assembly)
Condition 2 - Latch Not Correctly Assembled (Assemble Latch Assembly)
4. Install the changed escape slide/raft and/or the escape slide latch assembly on the packboard assembly.
5. Install the escape slide/raft and/or the escape slide pack assembly.
Group 1-2; Group 3, Configuration 1, 3-4; Group 4, Configuration 1; Group 5-8; Group 9, Configuration
1; Group 10-24:
Option 2 - Replace Latch Assembly
1. Remove the escape slide/raft and/or the escape slide pack assembly.
2. Replace the escape slide/raft and/or the escape slide latch assembly.
3. Install the changed escape slide/raft and/or the escape slide latch assembly on the packboard assembly.
4. Install the escape slide/raft and/or the escape slide pack assembly.
EFFECTIVITY
747-100/100B/100B SUD/200B/200C/-300/400/400D/SP airplanes. Refer to Paragraph 1.A., Effectivity, for the
list of affected airplanes.
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 operators accomplish the change given in this service bulletin within 48 months after the
Revision 3 date of this service bulletin.
INDUSTRY SUPPORT INFORMATION
Boeing warranty remedies are available for 747 airplanes in warranty as of April 15, 2005. For man-hour
reimbursement for airplanes in warranty as of that date, send a warranty claim to Boeing Warranty & Product
Assurance Contracts. The kits for airplanes in warranty as of that date will be supplied at no charge. Send a
purchase order for the kits (parts) to Boeing Spares. Please refer to this service bulletin number and reference
the airplane variable number(s) in your purchase order. Warranty remedies are only available for airplanes which
have incorporated original issue, Revision 1, or 2 of this service bulletin.
MANPOWER
Refer to Paragraph 1.G., Manpower.
MATERIAL INFORMATION
Boeing/Operator Supplied Parts.
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BOEING SERVICE BULLETIN 747-25-3428
Refer to Paragraph 2.A., Material - Price and Availability.
D3R
D4R
- D4L
D2R
• D3L
D1R
D1L
D2L
GROUPS 1-2
REMOVE ESCAPE SLIDE/RAFTS. DETERMINE
D4R  D5R  IF LATCHES ARE CORRECTLY ASSEMBLED
REPLACE LATCHES THAT ARE NOT CORRECTLY
ASSEMBLED. REWORK OR REPLACE LATCH
ASSEMBLIES TO ADD NEW CLIP. INSTALL LATCH
￾ D5L  ASSEMBLIES. INSTALL ESCAPE SLIDE/RAFTS.
D2R
D4L
D1R
D1L  D2L
GROUPS 3, 5-7, 10-23
REMOVE ESCAPE SLIDE/RAFTS. DETERMINE
IF LATCHES ARE CORRECTLY ASSEMBLED
REPLACE LATCHES THAT ARE NOT CORRECTLY
ASSEMBLED. REWORK OR REPLACE LATCH
ASSEMBLIES TO ADD NEW CLIP. INSTALL LATCH
ASSEMBLIES. INSTALL ESCAPE SLIDE/RAFTS.
D3R
• D3L
GROUPS 3-7, 9, 10, 13-17, 21-23
REMOVE ESCAPE SLIDE/RAFTS. DETERMINE
IF LATCHES ARE CORRECTLY ASSEMBLED
REPLACE LATCHES THAT ARE NOT CORRECTLY
ASSEMBLED. REWORK OR REPLACE LATCH
ASSEMBLIES TO ADD NEW CLIP. INSTALL LATCH
ASSEMBLIES. INSTALL ESCAPE SLIDE/RAFTS.
1307886
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BOEING SERVICE BULLETIN 747-25-3428
D4R  D5R
D1L
D3R
D5l
D2R
• D4L
- D3L
D1R
D1L  D2L
GROUP 8
REMOVE ESCAPE SLIDE/RAFTS. DETERMINE
IF LATCHES ARE CORRECTLY ASSEMBLED
REPLACE LATCHES THAT ARE NOT CORRECTLY
ASSEMBLED. REWORK OR REPLACE LATCH
ASSEMBLIES TO ADD CLIP. INSTALL LATCH
ASSEMBLIES. INSTALL ESCAPE SLIDE/RAFTS.
GROUP 24
REMOVE ESCAPE SLIDE/RAFT. DETERMINE
IF LATCH ARE CORRECTLY ASSEMBLED
REPLACE LATCH IF NOT CORRECTLY ASSEMBLED
REWORK OR REPLACE LATCH ASSEMBLIES TO ADD
CLIP. INSTALL LATCH ASSEMBLIES. INSTALL ESCAPE
SLIDE/RAFTS.
ESCAPE SLIDE/RAFT
LATCH REPLACEMENT
LATCH
ASSEMBLY
ESCAPE
SLIDE/RAFT
1309989
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Export Controlled ECCN: 9E991 - BOEING
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BLANK PAGE

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Commercial 
Airplanes
747
Service Bulletin
SPECIAL ATTENTION
Number: 747-25-3428
Original Issue: January 31, 2008
Revision 4: February 25, 2013
ATA System: 2560
SUBJECT: EQUIPMENT/FURNISHINGS - Emergency Equipment - Escape Slide/Raft Latch
Replacement
BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.
1.    PLANNING INFORMATION
A. Effectivity
1. Airplanes
Refer to Service Bulletin Index Document D6-30300 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 PRRs 85901-76S and 85901-115S for data about this change.
DESCRIPTIONCONFIGURATIONGROUP
747SP passenger airplanes that have slide/rafts stored at Doors 1,
2, 3, 4, have done 747-25-2425, and require a new latch at Doors 1,
2, 3, 4.
-1
747SP passenger airplanes that have slide/rafts stored at Doors 1,
2, 3, 4, and require a new latch at Doors 1, 2, 3, 4.
-2
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DESCRIPTIONCONFIGURATIONGROUP
747-200B passenger airplanes that have a cool gas generator slide
stored at Doors 1, 2, 4, 5, and have a two piece slide stored at Door
3.
-3
747-200B passenger airplanes that have not done 747-25-2455, but
have done 747-25-2666 and require a new latch at Door 3.
1
747-200B passenger airplanes that have not done 747-25-2455 and
747-25-2666, and do not require a new latch at Doors 1, 2, 3, 4, 5.
2
747-200B passenger airplanes that have slide/rafts at Doors 1, 2, 4,
5 by doing 747-25-2455, a one piece slide at Door 3 by doing
747-25-2666, and require a new latch at all doors.
3
747-200B passenger airplanes that have a slide/rafts stored at Doors
1, 2, 4, 5 by doing 747-25-2455, have not done 747-25-2666, and
do not require a new latch at Door 3.
4
747-100, -200B, -200C passenger airplanes that have a two piece
slide stored at Door 3.
-4
747-100, -200B, -200C passenger airplanes that have a one piece
slide stored at Door 3 by doing 747-25-2666, and require a new latch
at Door 3.
1
747-100, -200B, -200C passenger airplanes that have not done
747-25-2666 and do not require a new latch at Door 3.
2
747-100, -200B, -200C passenger airplanes that have slide/rafts
stored at Doors 1, 2, 4, 5, have done 747-25-2425, require a new
latch, and have a two piece slide stored at Door 3.
-5
747-100, -200B, -200C passenger airplanes that have slide/rafts
stored at Doors 1, 2, 4, 5, have a one piece slide stored at Door 3
by doing 747-25-2666, and require a new latch at all doors.
1
747-100, -200B, -200C passenger airplanes that have slide/rafts
stored at Doors 1, 2, 4, 5, have not done 747-25-2666 and do not
require a new latch at Door 3.
2
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DESCRIPTIONCONFIGURATIONGROUP
747-100B, -100B SUD, -200B, -200C, -300 passenger airplanes that
have slide/rafts stored at Doors 1, 2, 4, 5, require a new latch, and
have a two piece slide stored at Door 3.
-6
747-100B, -100B SUD, -200B, -200C, -300 passenger airplanes that
have slide/rafts stored at Doors 1, 2, 4, 5, have a one piece slide
stored at Door 3 by doing 747-25-2666, and require a new latch at
all doors.
1
747-100B, -100B SUD, -200B, -200C, -300 passenger airplanes that
have slide/rafts stored at Doors 1, 2, 4, 5, have not done 747-25-2666,
and do not require a new latch at Door 3.
2
747-200B, -200C, -300 passenger airplanes that have slide/rafts
stored at Doors 1, 2, 4, 5, have a one-piece slide stored at Door 3,
and require a new latch at all doors.
-7
747-400, -400D passenger airplanes that have slide/rafts stored at
Doors 1, 2, 4, 5, have a one-piece slide stored at Door 3, and require
a new latch at all doors.
-8
747-100, -200B passenger airplanes that have a two piece slide
stored at Door 3.
-9
747-100, -200B passenger airplanes that have a one piece slide
stored at Door 3 by doing 747-25-3045, and require a new latch at
Door 3.
1
747-100, -200B passenger airplanes that have not done 747-25-3045
and do not require a new latch at Door 3.
2
747-100, -200B passenger airplanes that have slide/rafts stored at
Doors 1, 2, 4, 5, have done 747-25-2425, require a new latch, and
have a two piece slide stored at Door 3 or have Door 3 deactivated.
-10
747-100, -200B passenger airplanes that have slide/rafts stored at
Doors 1, 2, 4, 5, have a one piece slide stored at Door 3 by doing
747-25-3045, and require a new latch at all doors.
1
747-100, -200B passenger airplanes that have slide/rafts stored at
Doors 1, 2, 4, 5, have not done 747-25-3045 and do not require a
new latch at Door 3.
2
747-100, -200B passenger airplanes that have slide/rafts stored at
Doors 1, 2, 4, 5, have deactivated Door 3 by doing 747-25-2678, and
do not require a new latch at Door 3.
-11
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### Page 16

DESCRIPTIONCONFIGURATIONGROUP
747-100, -200B passenger airplanes that have slide/rafts stored at
Doors 1, 2, 4, 5, have deactivated Door 3 by doing 747-25-2653, and
do not require a new latch at Door 3.
-12
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have done 747-25-2425, require a new latch, and have a
two piece slide stored at Door 3.
-13
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have a one piece slide stored at Door 3 by doing
747-25-2798, and require a new latch at all doors.
1
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have not done 747-25-2798, and do not require a new latch
at Door 3.
2
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, require a new latch, and have a two piece slide stored at
Door 3.
-14
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have a one piece slide stored at Door 3 by doing
747-25-2798, and require a new latch at all doors.
1
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have not done 747-25-2798, and do not require a new latch
at Door 3.
2
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, and Door 3 is either deactivated or reactivated.
-15
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have reactivated Door 3 by doing 747-25-2974, and require
a new latch at all doors.
1
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have done 747-25-2974, and do not require a new latch
at Door 3
2
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have deactivated Door 3 by doing 747-25-2649, and do
not require a new latch at Door 3.
3
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### Page 17

DESCRIPTIONCONFIGURATIONGROUP
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, and Door 3 is either deactivated or reactivated.
-16
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have reactivated Door 3 by doing 747-25-2798, and require
a new latch at all doors.
1
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have not done 747-25-2798, and do not require a new latch
at Door 3.
2
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have deactivated Door 3 by doing 747-25-2658, and do
not require a new latch at Door 3.
3
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, and Door 3 is either deactivated or reactivated.
-17
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have reactivated Door 3 by doing 747-25-2798, and require
a new latch at all doors.
1
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have not done 747-25-2798, and do not require a new latch
at Door 3.
2
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have deactivated Door 3 by doing 747-25-2654, and do
not require a new latch at Door 3.
3
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have deactivated Door 3 by doing 747-25-2654, and do
not require a new latch at Door 3.
-18
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have deactivated Door 3 by doing 747-25-2678, and require
a new latch at Doors 1, 2, 4, 5.
-19
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have deactivated Door 3 by doing 747-25-2653, and require
a new latch at Doors 1, 2, 4, 5.
-20
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### Page 18

DESCRIPTIONCONFIGURATIONGROUP
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, and have a two piece slide at Door 3.
-21
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have a one piece slide at Door 3 by doing 747-25-3045,
and require a new latch at all doors.
1
747-200B passenger airplanes that have slide/rafts stored at Doors
1, 2, 4, 5, have not done 747-25-3045, and do not require a new latch
at Door 3.
2
747-300 passenger airplanes that have slide/rafts stored at Doors 1,
2, 4, 5, and Door 3 is either deactivated or reactivated.
-22
747-300 passenger airplanes that have slide/rafts stored at Doors 1,
2, 4, 5, have reactivated Door 3 by doing 747-25-2798, and require
a new latch at all doors.
1
747-300 passenger airplanes that have slide/rafts stored at Doors 1,
2, 4, 5, have not done 747-25-2798, and do not require a new latch
at Door 3.
2
747-300 passenger airplanes that have slide/rafts stored at Doors 1,
2, 4, 5, have deactivated Door 3 by doing 747-25-2636, and do not
require a new latch at Door 3.
3
747-300 passenger airplanes that have slide/rafts stored at Doors 1,
2, 4, 5, and have two piece slide stored at Door 3.
-23
747-300 passenger airplanes that have slide/rafts stored at Doors 1,
2, 4, 5, have a one piece slide at Door 3 by doing Bulletin
747-25-2973, and require a new latch at all doors.
1
747-300 passenger airplanes that have slide/rafts stored at Doors 1,
2, 4, 5, have not done 747-25-2973, and do not require a new latch
at Door 3.
2
747-400 Large Cargo Freighters that have slide/rafts stored at Door
1L.
-24
Airplane Models:
747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-300, 747-400, 747-400D,
747SP
GroupVariable Number
4RA001 - RA006
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### Page 19

GroupVariable Number
4RA008 - RA012
4RA014
4RA016 - RA025
4RA030 - RA032
4RA034
4RA104 - RA110
4RA114 - RA115
4RA164
4RA201 - RA203
4RA216 - RA217
4RA245 - RA246
4RA251 - RA252
4RA254 - RA265
5RA266
9RA301 - RA303
4RA304
9RA305 - RA308
4RA309
9RA310
4RA311
9RA312 - RA317
10RA318
4RA351 - RA360
4RA369 - RA373
4RA406 - RA418
4RA501 - RA502
4RA521 - RA523
4RA525 - RA528
4RA532 - RA543
6RA544 - RA548
4RA551 - RA552
4RA559 - RA561
4RA581 - RA582
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### Page 20

GroupVariable Number
4RA585
4RA601 - RA602
4RA651 - RA652
3RA671 - RA675
4RA676
3RA677
4RA701 - RA702
4RA721 - RA724
5RA725
5RA727
6RA728 - RA731
4RA741 - RA745
4RA749
6RA750
4RA761 - RA762
4RA781 - RA783
4RA903 - RA909
4RB001 - RB009
5RB010 - RB012
4RB013 - RB016
4RB042
4RB044
5RB071 - RB075
4RB101 - RB102
21RB411 - RB412
6RB711
6RB721 - RB723
6RB741 - RB748
4RD001 - RD004
4RD021 - RD022
5RD045 - RD047
6RD048 - RD050
6RD052 - RD053
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### Page 21

GroupVariable Number
6RD056 - RD057
4RD071 - RD072
19RD081
6RD091 - RD092
5RD121
6RD122 - RD127
10RD131 - RD137
21RD138 - RD141
21RD143
7RD166 - RD167
6RD181 - RD183
5RD201 - RD202
6RD203 - RD204
6RD221 - RD224
6RD226
7RD231 - RD232
6RD241 - RD243
6RD251 - RD257
7RD260 - RD262
6RD271 - RD272
6RD291 - RD292
21RD311
15RD351 - RD357
16RD381
14RD382 - RD383
6RD413 - RD414
6RD421 - RD424
6RD431 - RD435
6RD451 - RD455
7RD456
6RD471 - RD475
5RD513 - RD516
6RD517 - RD519
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### Page 22

GroupVariable Number
5RD531
6RD532 - RD533
11RD551
6RD561
5RD591
13RD601 - RD603
17RD604
18RD605 - RD606
6RD607
5RD621
5RD644
6RD645
6RD649
12RD651 - RD653
20RD654 - RD657
5RD661
5RD671
5RD681 - RD682
6RD701 - RD702
6RD721 - RD722
6RD741 - RD742
6RD761
6RD775
7RD783
6RD791
5RD792
6RE001
8RF001 - RF006
1RG005
2RG008 - RG009
2RG095
1RG101 - RG103
2RG104
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GroupVariable Number
1RG121 - RG125
1RG141 - RG142
2RG161 - RG164
1RG171
2RG172 - RG174
2RG191 - RG193
2RG211 - RG213
2RG221 - RG222
1RH101
2RH102
2RH111 - RH112
2RH121 - RH122
4RJ131 - RJ133
5RJ151 - RJ152
5RJ301 - RJ302
6RJ303
7RJ321
6RJ331 - RJ333
8RM001 - RM007
8RM010 - RM013
8RM021 - RM024
8RM026 - RM030
8RM036 - RM045
8RM051 - RM053
8RM071
8RM081 - RM084
8RM091
8RM096 - RM097
8RM116 - RM117
8RM126 - RM127
8RM129 - RM132
8RM136 - RM147
8RM156 - RM158
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GroupVariable Number
8RM166 - RM177
8RM191 - RM192
8RM231 - RM233
8RM241 - RM246
8RM261 - RM264
8RM316 - RM318
8RM331 - RM333
8RM341
8RM351 - RM355
8RM366 - RM367
8RM401 - RM403
8RM426
8RM431
8RM441 - RM443
8RM445
8RM801 - RM803
8RM811 - RM813
6RS001 - RS002
6RS201
6RS211 - RS212
6RS221 - RS222
6RS231 - RS237
7RS238 - RS241
6RS251 - RS259
7RS263
6RS265 - RS268
6RS271 - RS276
6RS291
7RS292
23RS301 - RS306
7RS311 - RS320
7RS331 - RS333
7RS341 - RS342
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### Page 25

GroupVariable Number
6RS699
6RS701 - RS702
7RS703
22RS711 - RS712
7RS713
7RS731 - RS732
7RS742
6RS751 - RS752
7RS761
7RS781 - RS782
8RT001 - RT014
8RT034 - RT035
8RT041 - RT047
8RT073 - RT074
8RT101 - RT103
8RT121
8RT131 - RT137
8RT151 - RT152
8RT162 - RT163
8RT165 - RT168
8RT401 - RT412
8RT431 - RT447
8RT451 - RT455
8RT457 - RT460
8RT462 - RT469
8RT471 - RT499
8RT502 - RT505
8RT511 - RT512
8RT514 - RT515
8RT517
8RT521 - RT523
8RT525
8RT527
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### Page 26

GroupVariable Number
8RT529
8RT531 - RT535
8RT551 - RT568
8RT571
8RT580 - RT591
8RT601 - RT630
24RT631 - RT632
8RT633 - RT641
8RT643 - RT653
8RT671 - RT673
8RT681 - RT682
8RT693 - RT699
8RT701 - RT704
8RT711 - RT717
8RT741 - RT742
24RT743
8RT744 - RT750
8RT753 - RT757
8RT776 - RT777
8RT783 - RT784
8RT801 - RT803
8RT811 - RT814
8RT831 - RT836
8RT861 - RT864
24RT876
8RT877 - RT880
8RT931 - RT932
8RT945 - RT949
8RT951 - RT955
8RT966
8RU001 - RU006
8RU016 - RU017
8RU031 - RU032
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### Page 27

GroupVariable Number
8RU051 - RU052
8RU059 - RU062
8RU081 - RU083
8RU101 - RU102
8RU121 - RU132
8RU801 - RU809
8RU831 - RU841
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., Parts
Necessary for Each Airplane for the recommended use.
B. Concurrent Requirements
Group 1, 5, 10, 13:
For airplanes in Groups 1, 5, 10, and 13, the changes in this service bulletin cannot be made unless
the changes given in service bulletin 747-25-2425, Revision 01, or the original issue, are made.
Group 1, 5, 10, 13:
Service Bulletin 747-25-2425 describes procedures to eliminate problems with the remote warning
pressure vessel pressure gauge installed in doors and to provide a packboard installation of improved
design to reduce abrasion and punctures of slide rafts from capnuts within the packboard. The changes
given in service bulletin 747-25-2425 were made on Groups 2, 3, 6, 7, 11-12, 14-23 airplanes before
delivery.
The related Goodrich service bulletin is Goodrich Aerospace SB 25-367, Revision 1. The changes in
this service bulletin cannot be made unless the changes given in Goodrich Aerospace SB 25-367
Revision 1 are made.
Goodrich Aerospace SB 25-367 Revision 1 describes procedures to remove, open/unpack the escape
slide pack assembly and restore it after the packboard latch is changed.
C. Reason
This service bulletin is prepared to replace worn or not correctly assembled latches on main deck
escape slide/rafts and the escape slides installed on airplane doors. A worn or not correctly assembled
latch mechanism can allow an escape slide/raft or escape slide to disconnect from a door. If this service
bulletin is not done, operators may experience incidents of a latch hook moving from the closed to the
open position. A slide/raft or slide with a latch hook in the open position could possibly not deploy
correctly. A free item of mass could release or inflate in the cabin and cause injury to passengers and
personnel. Also, a slide/raft or slide that accidentally deploys will not be available in an emergency.
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### Page 28

The installed main deck escape slide/raft and escape slide latch use friction to keep the latch hook in
the closed position. Corrosion and worn parts reduce friction between the parts of the latch that keep
it in its closed position. The new latch uses a retention feature for the latch to make sure it stays in the
closed position.
The vendor earlier disclosed that a limited number of SS112A1 and SS112A11 latches had not been
correctly assembled. Service bulletin 747-25-3402 inspected and replaced latches by date of
manufacture. The vendor has since disclosed that any SS112A1 or SS112A11 latch may not be correctly
assembled. This bulletin makes sure latches are correctly assembled and replaces any that are not.
In response to 747 passenger fleet operator reports that main deck door escape slide/raft and ramp/slide
latches have been observed to not be in the fully closed position in service, Boeing released Service
Bulletin 747-25-3428 Revision 2 to add positive latch handle retention blocks to the latch handle in the
closed position. Unfortunately, Boeing has received subsequent reports that the latch handles are still
being observed in a partially open position after the positive latch handle retention block features had
been installed. Therefore, 747-SRP-25-0300 was initiated to correct this anomaly. Service Bulletin
747-25-3428 Revision 3 was issued to resolve the escape slide/raft or ramp/slide latch handle migration
issue.
Revision 1 was sent to add the requirement to make sure SS112A1, SS112A11 latches were correctly
assembled. SS112A1, SS112A11 latches that were not correctly assembled can not be changed to
SS112A12 latches and must be replaced. SS112A12 latches made from SS112A1 and SS112A11
latches as given in the initial release of this service bulletin must be replaced if made from SS112A1
and SS112A11 latches were not correctly assembled.
These sections were changed:
1. SUMMARY Manpower: Group Configuration applicability updated.
2. 1.A.1. PLANNING INFORMATION: Effectivity; Airplanes: the Group Configuration tables were
changed to include configurations based on having done the original issue of this service bulletin
3. 1.G. MANPOWER: Group Configuration applicability updated.
4. 2.A. MATERIAL INFORMATION - Price and Availability: Added SS112A12 latch information.
5. 2.C.1. MATERIAL INFORMATION - Parts Necessary For Each Airplane - Kits/Parts: Added
SS11A12 Latch
6. 2.C.3. MATERIAL INFORMATION - Parts Necessary For Each Airplane - Updated group
configuration applicability.
7. 3.B. ACCOMPLISHMENT INSTRUCTIONS - Work Instructions: Added requirement to make sure
the SS112A1 and SS112A11 latches are correctly assembled. Added instructions for latch assembly
change when a new SS112A12 is needed. Added addition work required when the initial release
of this service bulletin has been accomplished. Updated group configuration applicability.
8. Figures 1 through 19: Updated group configuration applicability.
9. Added Figure 20.
10. Added Appendix A.
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### Page 29

Boeing Service Related Problems (SRP) 747/747OP-SRP-25-0253 and 747-SRP-25-0274 are related
to this service bulletin.
Revision 2 is sent to inform operators of Group 8 airplanes that a packboard assembly marked as
416U6030-9044 that is part of slide pack assembly 416U5021-34 is the same as packboard assembly
416U6030-44.
These sections were changed:
1. Paragraph 1.A.., Effectivity; Airplanes RT071-RT072, RT075, RT161 and RT164 have been
removed from this service bulletin.
2. Paragraph 1.D., Description; added Affected Maintenance Zones.
3. Paragraph 1.K., Publications Affected; the Damage Tolerance Based Structural Inspections
paragraph has been added.
4. Paragraph 2.C.3., Parts Modified and Reidentified; added Note (e).
5. FIGURE 17; added Note (a).
Revision 3 is sent to provide new instructions for options to rework or replace the latch because the
replacement provided in the original issue, Revision 1, and Revision 2 of this service bulletin were
potentially ineffective.
Revision 4 is sent to change a reference to the Component Maintenance Manual (CMM) and add
optional part numbers from previously incorporated service bulletins. Also, to remove recently converted
747-400BCF Airplanes, RT061, RT530, RT654, RT691, and RT692, from the effectivity of this service
bulletin.
D. Description
Group 3-4, 9, Configuration 2:
No work is necessary.
Group 1-2; Group 3, Configuration 1, 3-4; Group 4, Configuration 1; Group 5-8; Group 9,
Configuration 1; Group 10-24:
Option 1 - Rework/Assemble Latch Assembly
1. Remove the escape slide/raft and/or the escape slide pack assembly.
2. Make sure the latch is correctly assembled.
3. Remove the escape slide/raft and/or the escape slide latch assembly.
Condition 1 - Latch Correctly Assembled (Rework Latch Assembly)
Condition 2 - Latch Not Correctly Assembled (Assemble Latch Assembly)
4. Install the changed escape slide/raft and/or the escape slide latch assembly on the packboard
assembly.
5. Install the escape slide/raft and/or the escape slide pack assembly.
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### Page 30

Group 1-2; Group 3, Configuration 1, 3-4; Group 4, Configuration 1; Group 5-8; Group 9,
Configuration 1; Group 10-24:
Option 2 - Replace Latch Assembly
1. Remove the escape slide/raft and/or the escape slide pack assembly.
2. Replace the escape slide/raft and/or the escape slide latch assembly.
3. Install the changed escape slide/raft and/or the escape slide latch assembly on the packboard
assembly.
4. Install the escape slide/raft and/or the escape slide pack assembly.
Revision 1: More work is necessary on airplanes changed as shown in the original issue of this service
bulletin. Airplanes changed as shown in the original issue must make sure the SS112A1 and SS112A11
latches were correctly assembled before they were changed to SS112A12 latches. SS112A1 and
SS112A11 latches that were not correctly assembled before they were changed to SS112A12 latches
must be replaced.
Revision 2 - No more work is necessary on airplanes changed in accordance with the original issue
and Revision 1 of this service bulletin.
Revision 3 - More work is necessary on the airplane(s) changed in accordance with the original issue,
Revision 1, or Revision 2 of this service bulletin.
Revision 4 -
– No more work is necessary on the airplane(s) changed in accordance with Revision 3 of this service
bulletin.
– More work is necessary on the airplane(s) changed in accordance with the original issue, Revision
1, or Revision 2 of this service bulletin.
The work in this service bulletin is done in the maintenance zone(s) given below.
Group 1-2:
Affected Maintenance Zones
ZoneModel
831, 832, 833, 834, 841, 842, 843, 844747SP
Group 3, 13-17, 21:
Affected Maintenance Zones
ZoneModel
831, 832, 833, 834, 835, 841, 842, 843, 844, 845747-200B
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Group 4:
Affected Maintenance Zones
ZoneModel
833, 843747-100, 747-200B, 747-200C
Group 5:
Affected Maintenance Zones
ZoneModel
831, 832, 833, 834, 835, 841, 842, 843, 844, 845747-100, 747-200B, 747-200C
Group 6:
Affected Maintenance Zones
ZoneModel
831, 832, 833, 834, 835, 841, 842, 843, 844, 845747-100B, 747-100B SUD, 747-
200B, 747-200C, 747-300
Group 7:
Affected Maintenance Zones
ZoneModel
831, 832, 833, 834, 835, 841, 842, 843, 844, 845747-200B, 747-200C, 747-300
Group 8:
Affected Maintenance Zones
ZoneModel
831, 832, 833, 834, 835, 841, 842, 843, 844, 845747-400, 747-400D
Group 9:
Affected Maintenance Zones
ZoneModel
833, 843747-100
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Group 10:
Affected Maintenance Zones
ZoneModel
831, 832, 833, 834, 835, 841, 842, 843, 844, 845747-100, 747-200B
Group 11-12, 18-20:
Affected Maintenance Zones
ZoneModel
831, 832, 834, 835, 841, 842, 844, 845747-200B
Group 22-23:
Affected Maintenance Zones
ZoneModel
831, 832, 833, 834, 835, 841, 842, 843, 844, 845747-300
Group 24:
Affected Maintenance Zones
ZoneModel
831747-400
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 operators accomplish the change given in this service bulletin within 48 months
after the Revision 3 date of 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.
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G. Manpower
The table below shows an estimate of the task-hours necessary to do this change 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 examine the work
— Time to cure the materials
— Time to make the parts
— Time to find the tools.
Group 3-4, 9, Configuration 2:
Elapsed HoursTask-HoursNumber of PersonsTask
No work is necessary.
Group 1-2:
Option 1, Condition 1 or 2 - Rework/Assemble Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
2.004.002FIGURE 1
1.002.002FIGURE 6
3.006.002FIGURE 21 or FIG-
URE 22
1.002.002FIGURE 11
2.254.502FIGURE 16
9.2518.50TOTAL FOR EACH AIRPLANE
Group 1-2:
Option 2 - Replace Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
2.004.002FIGURE 1
1.002.002FIGURE 6
1.002.002FIGURE 11
2.254.502FIGURE 16
6.2512.50TOTAL FOR EACH AIRPLANE
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Group 3-4, 9, Configuration 1:
Option 1, Condition 1 or 2 - Rework/Assemble Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
0.501.002FIGURE 4
0.250.502FIGURE 7
0.751.502FIGURE 21 or FIG-
URE 22
0.250.502FIGURE 12
0.751.502FIGURE 18
2.505.00TOTAL FOR EACH AIRPLANE
Group 3-4, 9, Configuration 1:
Option 2 - Replace Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
0.501.002FIGURE 4
0.250.502FIGURE 7
0.250.502FIGURE 12
0.751.502FIGURE 18
1.753.50TOTAL FOR EACH AIRPLANE
Group 3, Configuration 3; Group 5-6, Configuration 1; Group 7; Group 10, 13-17, 21-23,
Configuration 1:
Option 1, Condition 1 or 2 - Rework/Assemble Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
2.004.002FIGURE 2
0.501.002FIGURE 4
1.252.502FIGURE 8
3.757.502FIGURE 21 or FIG-
URE 22
1.252.502FIGURE 13
0.551.102FIGURE 16
2.204.402FIGURE 18
12.5023.50TOTAL FOR EACH AIRPLANE
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Group 3, Configuration 3; Group 5-6, Configuration 1; Group 7; Group 10, 13-17, 21-23,
Configuration 1:
Option 1, Condition 1 or 2 - Rework/Assemble Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
2.004.002FIGURE 2
0.501.002FIGURE 4
1.252.502FIGURE 8
1.252.502FIGURE 13
0.551.102FIGURE 16
2.204.402FIGURE 18
7.7515.50TOTAL FOR EACH AIRPLANE
Group 3, Configuration 4; Group 5-6, 10, Configuration 2; Group 11-12; Group 13-15, Config-
uration 2; Group 15, Configuration 3; Group 16, Configuration 2-3; Group 17, Configuration
2-3; Group 18-20; Group 21-22, Configuration 2; Group 22, Configuration 3; Group 23, Con-
figuration 2:
Option 1, Condition 1 or 2 - Rework/Assemble Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
2.004.002FIGURE 2
1.002.002FIGURE 6
3.006.002FIGURE 21 or FIG-
URE 22
1.002.002FIGURE 11
1.501.501FIGURE 18
8.5015.50TOTAL FOR EACH AIRPLANE
Group 3, Configuration 4; Group 5-6, 10, Configuration 2; Group 11-12; Group 13-15, Config-
uration 2; Group 15, Configuration 3; Group 16, Configuration 2-3; Group 17, Configuration
2-3; Group 18-20; Group 21-22, Configuration 2; Group 22, Configuration 3; Group 23, Con-
figuration 2:
Option 1, Condition 1 or 2 - Rework/Assemble Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
2.004.002FIGURE 2
1.002.002FIGURE 6
1.002.002FIGURE 11
2.254.502FIGURE 18
6.2512.50TOTAL FOR EACH AIRPLANE
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Group 5-6, 10, Configuration 2; Group 11-12; Group 13-15, Configuration 2; Group 15, Con-
figuration 3; Group 16, Configuration 2-3; Group 17, Configuration 2-3; Group 18-21; Group
22, Configuration 2-3; Group 23, Configuration 2:
Option 1, Condition 1 or 2 - Rework/Assemble Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
2.004.002FIGURE 2
1.002.002FIGURE 6
3.757.502FIGURE 21 or FIG-
URE 22
1.002.002FIGURE 11
2.254.502FIGURE 16
12.2023.15TOTAL FOR EACH AIRPLANE
Group 5-6, 10, Configuration 2; Group 11-12; Group 13-15, Configuration 2; Group 15, Con-
figuration 3; Group 16, Configuration 2-3; Group 17, Configuration 2-3; Group 18-21; Group
22, Configuration 2-3; Group 23, Configuration 2:
Option 2 - Replace Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
2.004.002FIGURE 2
1.002.002FIGURE 6
1.002.002FIGURE 11
2.254.502FIGURE 16
6.2512.50TOTAL FOR EACH AIRPLANE
Group 8:
Option 1, Condition 1 or 2 - Rework/Assemble Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
2.004.002FIGURE 3
0.501.002FIGURE 5
1.252.502FIGURE 9
2.505.001FIGURE 21 or FIG-
URE 22
1.252.502FIGURE 14
2.204.402FIGURE 17
0.551.102FIGURE 19
10.2520.50TOTAL FOR EACH AIRPLANE
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Group 8:
Option 2 - Replace Latch Assemblies
Elapsed HoursTask-HoursNumber of PersonsTask
2.004.002FIGURE 3
0.501.002FIGURE 5
1.252.502FIGURE 9
1.252.502FIGURE 14
2.204.402FIGURE 17
1.251.251FIGURE 19
8.4515.65TOTAL FOR EACH AIRPLANE
Group 24:
Option 1 - Rework/Assemble Latch Assembly
Elapsed HoursTask-HoursNumber of PersonsTask
4.104.101FIGURE 23
4.104.10TOTAL FOR EACH AIRPLANE
Group 24:
Option 2 - Replace Latch Assembly
Elapsed HoursTask-HoursNumber of PersonsTask
3.103.101FIGURE 24
3.103.10TOTAL FOR EACH AIRPLANE
This estimate does not include the task-hour data given in prior service bulletins in Summary/Concurrent
Requirements and Paragraph 1.B., Concurrent Requirements.
The change to the escape slide/raft latch as given in Goodrich Aerospace SB 25-367 Revision 1 is not
included.
H. Weight and Balance Changes
None.
I. Electrical Load Data
Not applicable.
J. References
1. Existing Data:
a. Engineering Change Memos PRR 85901-76S and PRR 85901-115S
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b. 747-SP Structural Repair Manual (SRM) 51-00-00
c. 747-100/200/300 Aircraft Maintenance Manual (AMM) 25-65-16, 25-69-01
d. 747-100/200/300 Structural Repair Manual (SRM) 51-00-00
e. 747-400 Aircraft Maintenance Manual (AMM) 25-65-16, 25-69-01
f. 747-400 Structural Repair Manual (SRM) 51-00-00
g. Component Maintenance Manual (CMM) 25-65-17, 25-65-24
h. Standard Overhaul Practices Manual (SOPM) 20-50-10, 20-50-12
i. Boeing Service Related Problem (SRP) 747/747OP-SRP-25-0253
j. Boeing Service Related Problem (SRP) 747-SRP-25-0274
k. Boeing Service Related Problem (SRP) 747-SRP-25-0300
l. Boeing Service Bulletin 747-25-2425, Slide/Raft Packboard Improvements and Pressure
Vessel Viewing Provisions
m. Boeing Service Bulletin 747-25-2455, Main Entry Door No. 1, 2, 4, and 5 Escape Slide/Raft
Provisions Installation
n. Boeing Service Bulletin 747-25-2636, Door 3 Deactivation
o. Boeing Service Bulletin 747-25-2649, Door 3 Deactivation
p. Boeing Service Bulletin 747-25-2653, Door 3 Deactivation
q. Boeing Service Bulletin 747-25-2654, Door 3 Deactivation
r. Boeing Service Bulletin 747-25-2658, Door 3 Deactivation
s. Boeing Service Bulletin 747-25-2666, Door Three Escape Slide - One Piece Escape Ramp/Slide
Installation
t. Boeing Service Bulletin 747-25-2678, Door 3 Deactivation
u. Boeing Service Bulletin 747-25-2701, Door 3 Reactivation
v. Boeing Service Bulletin 747-25-2702, Door 3 Reactivation
w. Boeing Service Bulletin 747-25-2797, Door 3 Reactivation
x. Boeing Service Bulletin 747-25-2798, Door 3 Reactivation
y. Boeing Service Bulletin 747-25-2973, Door 3 Reactivation
z. Boeing Service Bulletin 747-25-2974, Door 3 Reactivation
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aa. Boeing Service Bulletin 747-25-3045, Door 3 Reactivation
ab. Boeing Service Bulletin 747-25-3402, Mis-assembled Latch
ac. Goodrich Aerospace Service Bulletin 25-367, Revision 1
NOTE: The supplier was told to send copies of the service bulletin to each operator.
ad. Boeing Service Bulletin 747-25A2889, Packboard Modification
ae. Boeing Service Bulletin 747-25-2885, Packboard Change
2. Data Supplied with this Service Bulletin:
None.
3. Installation Drawings Used in the Preparation of this Service Bulletin:
None.
K. Publications Affected
1. Publications:
Chapter-SectionPublication
25-65, 25-69747 Aircraft Maintenance Manual
25-69747 Illustrated Parts Catalog
25-65Component Maintenance Manual
2. Damage Tolerance Based Structural Inspections:
Boeing has evaluated this service bulletin for effects on Fatigue Critical Structure (FCS) and for
changes to Damage Tolerance Inspections (DTI) required in the Maintenance Program. This
service bulletin does not affect FCS, therefore DTIs are not necessary.
L. Interchangeability and Intermixability of Parts
Refer to Paragraph 2.C., Parts Necessary for Each Airplane, for interchangeability and intermixability
information.
M. Software Accomplishment Summary
Not affected.
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BLANK PAGE

### Page 41

2.    MATERIAL INFORMATION
A. Material - Price and Availability
Boeing can supply the kits/parts for each passenger door shown in Paragraph 2.C., Parts Necessary
for Each Airplane, and Paragraph 2.D., Parts Necessary to Change Spares. Operators are encouraged
to share schedule requirements with Boeing for incorporation of the service bulletin. The kits/parts are
subject to the terms and conditions of the Boeing standard purchase order acknowledgment. Prices
are in United States Dollars. Terms: Net 30 days.
Reference this service bulletin and submit your purchase order by one of these methods:
1. Order on-line via ATA Spec 2000 or The Boeing PART Page
2. Fax to (206) 662-7145
REFER TO THE BOEING PART PAGE ON MYBOEINGFLEET.COM OR CONTACT FIRST RESPONDER
AT FR@BOEING.COM FOR THE LATEST REORDER LEAD TIME (ROLT) AND PRICE INFORMATION
Unit Price as of
the Revision 4
date of this Ser-
vice Bulletin (US
Dollars)
ROLT as of the
Revision 4 date of
this Service Bul-
letin (Calendar
Days)
QTYDateNameKit/Part Number
$286.00402100Jun 19/12TOP KIT - PACK
BOARD & COVER AS-
SY-SLIDE/RAFT
015U1922-1 (a)
(a) Option 1 - Condition 1: Latch Correctly Assembled
NOTE: If you choose to rework the latch assembly by using the top kit, you may need to replace the
latch SS112A12, if it is determined it was not assembled correctly. Refer to Paragraph 2.C.2.,
Parts and Materials Supplied by the Operator for latch information.
B. Industry Support Information
Boeing warranty remedies are available for 747 airplanes in warranty as of April 15, 2005. For man-hour
reimbursement for airplanes in warranty as of that date, send a warranty claim to Boeing Warranty &
Product Assurance Contracts. The kits for airplanes in warranty as of that date will be supplied at no
charge. Send a purchase order for the kits (parts) to Boeing Spares. Please refer to this service bulletin
number and reference the airplane variable number(s) in your purchase order. Warranty remedies are
only available for airplanes which have incorporated Original Issue, 1, or 2 of this service bulletin.
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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 passenger door.
Group 3-4, 9, Configuration 2:
None.
Group 1-2; Group 3, Configuration 1, 3-4; Group 4, Configuration 1; Group 5-8; Group 9, Config-
uration 1; Group 10-24:
Option 1 - Condition 1: Latch Correctly Assembled (Rework Latch Assembly)
Kit 015U1922
NotesExisting Part
Number
NameQTYNew Part Number
-1
TOP KIT - PACK BOARD & COVER
ASSY-SLIDE/RAFT
-015U1922-1
LATCH BASEPLATE169B55465-801
LATCH HANDLE RETENTION CLIP169B55465-802
(a)RIVET, 100 DEG4BACR15BA4D7C
(a)RIVET, 100 DEG4BACR15BA5D7C
(a)RIVET, 100 DEG4BACR15BA6D7C
MACHINE SCREWS4NAS514P1032-5
(a) There are more parts than are necessary.
2. Parts and Materials Supplied by the Operator:
Group 3-4, 9, Configuration 2:
None.
Group 1-2; Group 3, Configuration 1, 3-4; Group 4, Configuration 1; Group 5-8; Group 9, Config-
uration 1; Group 10-24:
Option 1: Condition 1 or 2
NotesNameQTYNew Part Number
(a)THREAD RETAINING COM-
POUND
1 OzLoctite 222MS(MIL-S-46163A
Type II Grade M)
(a) Quantity necessary is for each latch reworked.
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Group 1-2; Group 3, Configuration 1, 3-4; Group 4, Configuration 1; Group 5-8; Group 9, Config-
uration 1; Group 10-24:
Option 1 - Condition 2: Latch Not Correctly Assembled (Assemble Latch Assembly)
NotesExisting Part NumberNameQTYNew Part Number
(a)SS112A1, SS112A11 or
SS112A12
Latch(a)SS112A12
(a) This part is needed when the existing latch is found to be not correctly assembled. Option
1 - Condition 2 latch is intended to be used with Option 1 - Condition 1 Top Kit.
Group 1-2; Group 3, Configuration 1, 3-4; Group 4, Configuration 1; Group 5-8; Group 9, Config-
uration 1; Group 10-24:
Option 2: Replace Latch Assembly
NotesExisting Part NumberNameQTYNew Part Number
69B55465-1, -4, -7 or -9Latch Assembly169B55465-803
3. Parts Modified and Reidentified:
The parts shown below are changed as shown in this service bulletin. The quantity (QTY) is the
number of parts changed on each airplane. Components or subassembly parts are indented. The
quantity of the indented part is the number of parts used on the next higher assembly.
Group 3-4, 9, Configuration 2:
None.
Group 3-4, 9, Configuration 1:
Option 1 - Condition 1: Latch Correctly Assembled (Rework Latch Assembly)
NotesNew Part NumberNameQTYExisting Part Number
(a)(b)Latch Assembly269B55465-1, -4 or -7
..or
(c)69B55465-80369B55465-9
(a)(b)SLIDE PACK ASSEMBLY265B57391-()
(a) Make the change given in this service bulletin.
(b) There is no equivalent Boeing part number for the changed part. Identify on the part that
the change given in this service bulletin was made.
(c) The equivalent production part number is 69B55465-803.
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Group 1-2; Group 3, Configuration 4; Group 5-6, 10, Configuration 2; Group 11-12; Group 14-15,
Configuration 2; Group 15, Configuration 3; Group 16, Configuration 2-3; Group 17, Configuration
2-3; Group 18-20; Group 21-22, Configuration 2; Group 22, Configuration 3; Group 23, Configuration
2:
NotesNew Part NumberNameQTYExisting Part Number
(a)(b)Latch Assembly869B55465-1, -4 or -7
..or
(c)69B55465-80369B55465-9
(a)(b)SLIDE PACK ASSEMBLY865B57391-()
(a) Make the change given in this service bulletin.
(b) There is no equivalent Boeing part number for the changed part. Identify on the part that
the change given in this service bulletin was made.
(c) The equivalent production part number is 69B55465-803.
Group 3, Configuration 3; Group 5-6, Configuration 1; Group 7; Group 10, 13-17, Configuration
1; Group 21; Group 22-23, Configuration 1:
NotesNew Part NumberNameQTYExisting Part Number
(a)(b)Latch Assembly1069B55465-1, -4 or -7
..or
(c)69B55465-80369B55465-9
(a)(b)SLIDE PACK ASSEMBLY1065B57391-()
(a) Make the change given in this service bulletin.
(b) There is no equivalent Boeing part number for the changed part. Identify on the part that
the change given in this service bulletin was made.
(c) The equivalent production part number is 69B55465-803.
Group 8:
NotesNew Part NumberNameQTYExisting Part Number
(a)(b)Latch Assembly1069B55465-7
..or
(c) (d)69B55465-80369B55465-9
(a)(b)SLIDE PACK ASSEMBLY10416U5021-() or
015U0516-( ) or
015U0483-( )
(a) Make the change given in this service bulletin.
(b) There is no equivalent Boeing part number for the changed part. Identify on the part that
the change given in this service bulletin was made.
(c) This is the part number after the change given in this service bulletin.
(d) This part is used in production.
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### Page 45

Group 24:
NotesNew Part NumberNameQTYExisting Part
Number
(b)(a)Latch Assembly1069B55465-7
..or
(c) (d)69B55465-80369B55465-9
(b)(a)SLIDE PACK ASSEMBLY1416U5021-( ) or
015U0516-( ) or
015U0483-( )
(a) There is no equivalent Boeing part number for the changed part. Identify on the part that
the change given in this service bulletin was made.
(b) Make the change given in this service bulletin.
(c) This is the part number after the change given in this service bulletin.
(d) This part is used in production.
4. Parts Removed and Not Replaced:
Group 3-4, 9, Configuration 2:
None.
Group 1-2; Group 3, Configuration 1, 3-4; Group 4, Configuration 1; Group 5-8; Group 9, Config-
uration 1; Group 10-24:
Option 1 - Condition 1: Latch Correctly Assembled (Rework Latch Assembly)
NotesQTYNameExisting Part Number
1RIVET SPACER or DOUBLER and
PLATE SPACER
69B55465-3 OR 69B55465-5
AND -6
D. Parts Necessary to Change Spares
Kit 015U1922
NotesNameQTYNew Part Number
-1
TOP KIT - PACK BOARD & COVER ASSY-
SLIDE/RAFT
-015U1922-1
LATCH BASEPLATE169B55465-801
LATCH HANDLE RETENTION CLIP169B55465-802
(a)RIVET, 100 DEG4BACR15BA4D7C
(a)RIVET, 100 DEG4BACR15BA5D7C
(a)RIVET, 100 DEG4BACR15BA6D7C
MACHINE SCREWS4NAS514P1032-5
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Kit 015U1922
NotesNameQTYNew Part Number
-1
(a) There are more parts than are necessary.
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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### Page 47

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.
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. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for
definition of the acronyms.
2. Obey all of the warnings and cautions given in the specified manual sections.
3. Unless shown differently, these dimensions and tolerances are used:
– Tolerance on rivet and bolt edge margin is plus or minus 0.05 inch
– Hole dimensions for standard solid rivets and fasteners are in 747-SP SRM
51-00-00, 747-100/200/300 SRM 51-00-00, and 747-400 SRM 51-00-00.
4. If the length of any fastener specified in this service bulletin does not meet installation
standards given in SRM Chapter 51, then a fastener of the same specification, or
an approved substitute, with a length which meets the installation standards given
in SRM Chapter 51 may be used. In addition, washers may be installed for fastener
grip length in accordance with SRM Chapter 51.
5. 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 "in
accordance with" are included in the instruction, the procedure in the Boeing document
must be used.
B. WORK INSTRUCTIONS
Group 3-4, 9, Configuration 2:
No work is necessary.
Group 1-2:
1. Make the change to the escape slide/raft pack assemblies using one of these two Options.
Option 1 - Rework/Assemble Latch Assembly
a. Remove the escape slide/raft pack assembly at Doors 1, 2, 3, and 4 in accordance with
FIGURE 1.
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: January 31, 2008
747-25-3428Revision 4: February 25, 2013
47 of 104
BOEING SERVICE BULLETIN 747-25-3428

### Page 48

b. Make sure latches are correctly assembled in accordance with APPENDIX A.
c. Remove escape slide/raft latch assembly at Doors 1, 2, 3, and 4 in accordance with FIGURE
6.
Condition 1 - Latch Correctly Assembled (Rework Latch Assembly)
(1) Rework latch assembly in accordance with FIGURE 21.
Condition 2 - Latch Not Correctly Assembled (Assemble Latch Assembly)
(1) Get a correctly assembled latch assembly SS112A12.
(2) Assemble latch assembly in accordance with FIGURE 22.
d. Install escape slide/raft latch assembly at Doors 1, 2, 3, and 4 in accordance with FIGURE
11.
e. Install the escape slide/raft pack assembly at Doors 1, 2, 3, and 4 in accordance with FIGURE
15.
f. Put the airplane back to a serviceable condition.
Option 2 - Replace Latch Assembly
a. Remove the escape slide/raft pack assembly at Doors 1, 2, 3, and 4 in accordance with
FIGURE 1.
b. Remove escape slide/raft latch assembly at Doors 1, 2, 3, and 4 in accordance with FIGURE
6.
c. Install escape slide/raft latch assembly at Doors 1, 2, 3, and 4 in accordance with FIGURE
11.
d. Install the escape slide/raft pack assembly at Doors 1, 2, 3, and 4 in accordance with FIGURE
15.
e. Put the airplane back to a serviceable condition.
Group 3-4, 9, Configuration 1:
1. Make the change to the escape slide/raft pack assemblies using one of these two Options.
Option 1 - Rework/Assemble Latch Assembly
a. Remove the escape slide pack assembly at Door 3 in accordance with FIGURE 4.
b. Make sure latches are correctly assembled in accordance with APPENDIX A.
c. Remove escape slide latch assembly at Door 3 in accordance with FIGURE 7.
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: January 31, 2008
747-25-3428Revision 4: February 25, 2013
48 of 104
BOEING SERVICE BULLETIN 747-25-3428

### Page 49

Condition 1 - Latch Correctly Assembled (Rework Latch Assembly)
(1) Rework latch assembly in accordance with FIGURE 21.
Condition 2 - Latch Not Correctly Assembled (Assemble Latch Assembly)
(1) Get a correctly assembled latch assembly SS112A12.
(2) Assemble latch assembly in accordance with FIGURE 22.
d. Install escape slide latch assembly at Door 3 in accordance with FIGURE 12.
e. Install the escape slide pack assembly at Door 3 in accordance with FIGURE 18.
f. Put the airplane back to a serviceable condition.
Option 2 - Replace Latch Assembly
a. Remove the escape slide pack assembly at Door 3 in accordance with FIGURE 4.
b. Remove the escape slide latch assembly at Door 3 in accordance with FIGURE 7.
c. Install escape slide latch assembly at Door 3 in accordance with FIGURE 12.
d. Install the escape slide pack assembly at Door 3 in accordance with FIGURE 18.
e. Put the airplane back to a serviceable condition.
Group 3, Configuration 3; Group 5-6, Configuration 1; Group 7; Group 10, 13-17, Configuration
1; Group 18; Group 21-23, Configuration 1:
1. Make the change to the escape slide/raft pack assemblies using one of these two Options.
Option 1 - Rework/Assemble Latch Assembly
a. Remove the escape slide/raft pack assembly at Doors 1, 2, 4, and 5 in accordance with
FIGURE 2.
b. Remove the escape slide pack assembly at Door 3 in accordance with FIGURE 4.
c. Make sure latches are correctly assembled in accordance with APPENDIX A.
d. Remove escape slide/raft latch assembly at Doors 1, 2, 3, 4, and 5 in accordance with FIGURE
8.
Condition 1 - Latch Correctly Assembled (Rework Latch Assembly)
(1) Rework latch assembly in accordance with FIGURE 21.
Condition 2 - Latch Not Correctly Assembled (Assemble Latch Assembly)
(1) Get a correctly assembled latch assembly SS112A12.
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: January 31, 2008
747-25-3428Revision 4: February 25, 2013
49 of 104
BOEING SERVICE BULLETIN 747-25-3428

### Page 50

(2) Assemble latch assembly in accordance with FIGURE 22.
e. Install escape slide/raft and the escape slide latch assembly at Doors 1, 2, 3, 4, and 5 in
accordance with FIGURE 13.
f. Install the escape slide/raft pack assembly at Doors 1, 2, 4, and 5 in accordance with FIGURE
16.
g. Install the escape slide pack assembly at Door 3 in accordance with FIGURE 18.
h. Put the airplane back to a serviceable condition.
Option 2 - Replace Latch Assembly
a. Remove the escape slide/raft pack assembly at Doors 1, 2, 4, and 5 in accordance with
FIGURE 2.
b. Remove the escape slide pack assembly at Door 3 in accordance with FIGURE 4.
c. Remove escape slide/raft and escape slide latch assembly at Doors 1, 2, 3, 4, and 5 in
accordance with FIGURE 8.
d. Install escape slide/raft and the escape slide latch assemblies at Doors 1, 2, 3, 4, and 5 in
accordance with FIGURE 13.
e. Install the escape slide/raft pack assembly at Doors 1, 2, 4, and 5 in accordance with FIGURE
16.
f. Install the escape slide pack assembly at Door 3 in accordance with FIGURE 18.
g. Put the airplane back to a serviceable condition.
Group 3, Configuration 4; Group 5-6, 10, Configuration 2; Group 11-12; Group 13-15, Configuration
2; Group 15, Configuration 3; Group 16, Configuration 2-3; Group 17, Configuration 2-3; Group
18-20; Group 21-22, Configuration 2; Group 22, Configuration 3; Group 23, Configuration 2:
1. Make the change to the escape slide/raft pack assemblies using one of these two Options.
Option 1 - Rework/Assemble Latch Assembly
a. Remove the escape slide/raft pack assembly at Doors 1, 2, 4, and 5 in accordance with
FIGURE 2.
b. Make sure latches are correctly assembled in accordance with APPENDIX A.
c. Remove escape slide/raft latch assembly at Doors 1, 2, 4, and 5 in accordance with FIGURE
6.
Condition 1 - Latch Correctly Assembled (Rework Latch Assembly)
(1) Rework latch assembly in accordance with FIGURE 21.
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: January 31, 2008
747-25-3428Revision 4: February 25, 2013
50 of 104
BOEING SERVICE BULLETIN 747-25-3428

### Page 51

Condition 2 - Latch Not Correctly Assembled (Assemble Latch Assembly)
(1) Get a correctly assembled latch assembly SS112A12.
(2) Assemble latch assembly in accordance with FIGURE 22.
d. Install escape slide/raft latch assembly at Doors 1, 2, 4, and 5 in accordance with FIGURE
11.
e. Install the escape slide pack assembly at Doors 1, 2, 4, and 5 in accordance with FIGURE
16.
f. Put the airplane back to a serviceable condition.
Option 2 - Replace Latch Assembly
a. Remove the escape slide/raft pack assembly at Doors 1, 2, 4, and 5 in accordance with
FIGURE 2.
b. Remove escape slide/raft latch assembly at Doors 1, 2, 4, and 5 in accordance with FIGURE
6.
c. Install escape slide/raft latch assembly at Doors 1, 2, 4, and 5 in accordance with FIGURE
11.
d. Install the escape slide pack assembly at Doors 1, 2, 4, and 5 in accordance with FIGURE
16.
e. Put the airplane back to a serviceable condition.
Group 8:
1. Make the change to the escape slide/raft pack assemblies using one of these three Options.
Option 1 - Rework/Assemble Latch Assembly
a. Remove the escape slide/raft pack assembly at Doors 1, 2, 4, and 5 in accordance with
FIGURE 3.
b. Remove the escape slide pack assembly at Door 3 in accordance with FIGURE 5.
c. Make sure latches are correctly assembled in accordance with APPENDIX A.
d. Remove escape slide/raft and escape slide latch assemblies at Doors 1, 2, 3, 4, and 5 in
accordance with FIGURE 9.
Condition 1 - Latch Correctly Assembled (Rework Latch Assembly)
(1) Rework latch assembly in accordance with FIGURE 21.
Condition 2 - Latch Not Correctly Assembled (Assemble Latch Assembly)
(1) Get a correctly assembled latch assembly SS112A12.
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: January 31, 2008
747-25-3428Revision 4: February 25, 2013
51 of 104
BOEING SERVICE BULLETIN 747-25-3428

### Page 52

(2) Assemble latch assembly in accordance with FIGURE 22.
e. Install escape slide/raft and the escape slide latch assembly at Doors 1, 2, 3, 4, and 5 in
accordance with FIGURE 14.
f. Install the escape slide/raft pack assembly at Doors 1, 2, 4, and 5 in accordance with FIGURE
17.
g. Install the escape slide pack assembly at Door 3 in accordance with FIGURE 19.
h. Put the airplane back to a serviceable condition.
Option 2 - Replace Latch Assembly
a. Remove the escape slide/raft pack assembly at Doors 1, 2, 4, and 5 in accordance with
FIGURE 3.
b. Remove the escape slide pack assembly at Door 3 in accordance with FIGURE 5.
c. Remove escape slide/raft and escape slide latch assembly at Doors 1, 2, 3, 4, and 5 in
accordance with FIGURE 9.
d. Install escape slide/raft and the escape slide latch assembly at Doors 1, 2, 3, 4, and 5 in
accordance with FIGURE 14.
e. Install the escape slide/raft pack assembly at Doors 1, 2, 4, and 5 in accordance with FIGURE
17.
f. Install the escape slide pack assembly at Door 3 in accordance with FIGURE 19.
g. Put the airplane back to a serviceable condition.
Group 24:
1. Make the change to the escape slide/raft pack assemblies using one of these three Options.
Option 1 - Rework/Assemble Latch Assembly
a. Rework or replace latch assembly in accordance with FIGURE 23.
b. Put the airplane back to a serviceable condition.
Option 2 - Replace Latch Assembly
a. Replace latch assembly in accordance with FIGURE 24.
b. Put the airplane back to a serviceable condition.
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: January 31, 2008
747-25-3428Revision 4: February 25, 2013
52 of 104
BOEING SERVICE BULLETIN 747-25-3428

### Page 53 (OCR)

BOEING SERVICE BULLETIN 747-25-3428
This Figure applies only to: Group 1-2.
DOOR 4R
SEE A
DOOR 3R
SEE
DOOR 2R
SEE  - DOOR 4L
DOOR 3L  SEE 1
DOOR 1R
SEE
SEE
DOOR 2L
DOOR 1L  SEE A
SEE A
FWD
1307359
FIGURE 1: DOORS 1, 2, 3, AND 4 ESCAPE SLIDE/RAFT PACK ASSEMBLY REMOVAL
(SHEET 1 OF 2)
Original Issue: January 31, 2008
Revision 4 February 25, 2013  PROPRIETARY - Copyright © Unpublished  Export Controlled ECCN: 9E991 - BOEING  747-25-3428
Work - See page 1 for details.  53 of 104

### Page 54

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 each airplane.
MORE DATAQTYIDENTIFICATIONNAMETASKSTEP
Refer to 747-100/200/300 AMM
25-69-01 as an accepted proce-
dure.
865B57391-()SLIDE PACK ASSYRemove/Keep1
and unpack in accordance with
Goodrich Aerospace SB 25-367
Revision 1.
8NONESLIDE/RAFT ASSYLoosen2
FIGURE 1: DOORS 1, 2, 3, AND 4 ESCAPE SLIDE/RAFT PACK ASSEMBLY REMOVAL
(SHEET 2 OF 2)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: January 31, 2008
747-25-3428Revision 4 February 25, 2013
54 of 104
BOEING SERVICE BULLETIN 747-25-3428

### Page 55 (OCR)

BOEING SERVICE BULLETIN 747-25-3428
This Figure applies only to: Group 3, Configuration 3-4; Group 5-7, 10-23.
DOOR 5R
SEE
DOOR 4R
DOOR 2R
SEE
SEE
- DOOR 5L
SEE (A
DOOR 1R  - DOOR 4L
SEE  SEE
DOOR 2L
DOOR 1L  SEE A
SEE A
FWD <
1307940
FIGURE 2: DOORS 1, 2, 4, AND 5 ESCAPE SLIDE/RAFT PACK ASSEMBLY REMOVAL
(SHEET 1 OF 2)
Original Issue: January 31, 2008
Revision 4 February 25, 2013  PROPRIETARY - Copyright © Unpublished  Export Controlled ECCN: 9E991 - BOEING  747-25-3428
Work - See page 1 for details.  55 of 104

### Page 56

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 each airplane.
MORE DATAQTYIDENTIFICATIONNAMETASKSTEP
Refer to 747-100/200/300 AMM
25-69-01 as an accepted proce-
dure.
865B57391-()SLIDE PACK AS-
SY
Remove/Keep1
and unpack in accordance with
Goodrich Aerospace SB 25-367
Revision 1.
8NONESLIDE/RAFT ASSYLoosen2
FIGURE 2: DOORS 1, 2, 4, AND 5 ESCAPE SLIDE/RAFT PACK ASSEMBLY REMOVAL
(SHEET 2 OF 2)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: January 31, 2008
747-25-3428Revision 4 February 25, 2013
56 of 104
BOEING SERVICE BULLETIN 747-25-3428

### Page 57 (OCR)

BOEING SERVICE BULLETIN 747-25-3428
This Figure applies only to: Group 8.
DOOR 5R
SEE
DOOR 4R
DOOR 2R
SEE
SEE
- DOOR 5L
SEE A
DOOR 1R  DOOR 4L
SEE  SEE
DOOR 2L
DOOR 1L  SEE A
SEE A
FWD A
1307976
FIGURE 3: DOORS 1, 2, 4, AND 5 ESCAPE SLIDE/RAFT PACK ASSEMBLY REMOVAL
(SHEET 1 OF 2)
Original Issue: January 31, 2008
Revision 4 February 25, 2013  Export Controlled ECCN: 9E991 - BOEING  747-25-3428
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.  57 of 104

### Page 58

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 each airplane.
MORE DATAQTYIDENTIFICATIONNAMETASKSTEP
Refer to 747-400 AMM 25-69-
01 as an accepted procedure.
8416U5021-() or
015U0516-( ) or
015U0483-()
SLIDE PACK AS-
SY
Remove/Keep1
and unpack in accordance with
Goodrich Aerospace SB 25-367
Revision 1.
8NONESLIDE/RAFT ASSYLoosen2
FIGURE 3: DOORS 1, 2, 4, AND 5 ESCAPE SLIDE/RAFT PACK ASSEMBLY REMOVAL
(SHEET 2 OF 2)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: January 31, 2008
747-25-3428Revision 4 February 25, 2013
58 of 104
BOEING SERVICE BULLETIN 747-25-3428

### Page 59 (OCR)

BOEING SERVICE BULLETIN 747-25-3428
This Figure applies only to: Group 3, Configuration 1, 3; Group 4-6, Configuration 1; Group 7; Group
9-10, 13-17, 21-23, Configuration 1.
DOOR 3R
SEE
DOOR 3L
SEE (A
FWD
1307986
FIGURE 4: DOOR 3 ESCAPE SLIDE PACK ASSEMBLY REMOVAL
(SHEET 1 OF 2)
Original Issue: January 31, 2008
Revision 4 February 25, 2013  PROPRIETARY - Copyright © Unpublished  Export Controlled ECCN: 9E991 - BOEING  747-25-3428
Work - See page 1 for details.  59 of 104

### Page 60

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 each airplane.
MORE DATAQTYIDENTIFICATIONNAMETASKSTEP
Refer to 747-100/200/300 AMM
25-65-16 as an accepted proce-
dure.
265B57391-()SLIDE PACK AS-
SY
Remove/Keep1
and unpack in accordance with
Goodrich Aerospace SB 25-367
Revision 1.
2NONESLIDE ASSYLoosen2
FIGURE 4: DOOR 3 ESCAPE SLIDE PACK ASSEMBLY REMOVAL
(SHEET 2 OF 2)
Export Controlled ECCN: 9E991 - BOEING
PROPRIETARY - Copyright © Unpublished
Work - See page 1 for details.
Original Issue: January 31, 2008
747-25-3428Revision 4 February 25, 2013
60 of 104
BOEING SERVICE BULLETIN 747-25-3428

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