# Boeing Alert Service Bulletin 747-57A2367: 747-57A2367-00--RB -BOEING

- Rights: © The Boeing Company. Filed by the FAA in regulations.gov docket FAA-2020-0211, the docket of AD 2021-02-15. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Boeing Alert Service Bulletin 747-57A2367](https://openairdocs.org/service-documents/boeing/747-57a2367.md)
- Title as filed: 747-57A2367-00--RB -BOEING
- Pages: 288
- PDF: https://openairdocs.org/files/sha256/1e/15/1e159cdeb32b338dfd3c77f2cb47d80dab301f5595e9cb37b415ef1eacf5f5b2
- Page: https://openairdocs.org/service-documents/boeing/747-57a2367/file/1e159cdeb32b

## Text

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### Page 1

Commercial 
Airplanes
747
Requirements Bulletin
ALERT
Number: 747-57A2367 RB
Original Issue: November 15, 2019
ATA System: 5752 2751
SUBJECT: WINGS - Flaps - Trailing Edge - Inboard Foreflap Assembly Change and Inspection
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:
Copyright © 2019 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Unpublished Work.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, KC-46, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8, 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.
Original Issue: November 15, 2019
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Original Issue: November 15, 2019
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Table of Contents
1 . E F F E C T I V I T Y  ................................................ 7
A. Airplanes ................................................ 7
B . S p a r e s  A f f e c t e d  ........................................... 1 2
2. CONCURRENT REQUIREMENTS .................................... 1 2
3 . C O M P L I A N C E  ............................................... 1 2
4. APPROVAL ................................................ 2 1
5. ACCOMPLISHMENT INSTRUCTIONS .................................. 2 3
A. General Information ......................................... 2 3
B. Work Instructions ........................................... 2 5
FIGURE 1: LEFT SIDE - INBOARD FOREFLAP - INBOARD LINK ASSEMBLY -  R E M O V A L .... 1 0 3
FIGURE 2: LEFT SIDE - INBOARD FOREFLAP - INBOARD LINK ASSEMBLY -  INSTALLATION . . 105
FIGURE 3: LEFT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSEMB LY WITH EXISTING
DOUBLER INSTALLED - REMOVAL [Group 1; Group 2, Configuration 1-2; Group 3, Configuration
1-2; Group 4-8] ........................................ 1 0 8
FIGURE 4: LEFT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSEMB LY WITH EXISTING
D O U B L E R  I N S T A L L E D  -  I N S T A L L A T I O N  [ G r o u p  1 ]  ....................111
FIGURE 5: LEFT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSEMB LY WITH EXISTING
DOUBLER INSTALLED - INSTALLATION [Group 2, Configuration 1-2; Group 3, Configuration
1-2; Group 4-6] ........................................ 1 1 4
FIGURE 6: LEFT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSEMB LY WITH EXISTING
DOUBLER INSTALLED - INSTALLATION [Group 7-8] ................... 1 1 7
FIGURE 7: LEFT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSEMB LY WITHOUT EXISTING
DOUBLER - REMOVAL [Group 2, Configuration 3-4; Group 3, Configu ration 3-4] .... 1 2 0
FIGURE 8: LEFT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSEMB LY WITHOUT EXISTING
DOUBLER - INSTALLATION [Group 2, Configuration 3-4; Group 3, Co nfiguration 3-4] . 123
FIGURE 9: LEFT SIDE - INBOARD FOREFLAP CARRIAGE ATTACHMENT - CEN TER TOGGLE ROLLER
-  R E M O V A L .......................................... 1 3 0
FIGURE 10: LEFT SIDE - INBOARD FOREFLAP CARRIAGE ATTACHMENT - CENTER TOGGLE ROLLER
- INSTALLATION ....................................... 1 3 3
FIGURE 11: LEFT SIDE - INBOARD TRAILING EDGE FLAP TRACKS NUMBER 3 AND 4 - STOP - REMOVAL
[Group 1-2, Configuration 2; Group 2, Configuration 4; Group 3, Configuration 2, 4; Group 4-5,
Configuration 2] ........................................ 1 3 6
FIGURE 12: LEFT SIDE - INBOARD TRAILING EDGE FLAP - OUTBOARD TRA CK NUMBER 3 - STOP -
INSTALLATION [Group 1-2, Configuration 2; Group 2, Configuration 4; Group 3, Configuration
2, 4; Group 4-5, Configuration 2] ............................... 1 3 9
FIGURE 13: LEFT SIDE - INBOARD TRAILING EDGE FLAP - OUTBOARD TRA CK NUMBER 3 - STOP -
REMOVAL [Group 1-2, Configuration 1; Group 2, Configuration 3; Group 3, Configuration 1, 3;
Group 4-5, Configuration 1; Group 6-8] ........................... 1 4 2
FIGURE 14: LEFT SIDE - INBOARD TRAILING EDGE FLAP - OUTBOARD TRA CK NUMBER 3 - STOP -
INSTALLATION [Group 1-2, Configuration 1; Group 2, Configuration 3; Group 3, Configuration
1, 3; Group 4-5, Configuration 1; Group 6-8] ........................ 1 4 5
FIGURE 15: LEFT SIDE - INBOARD TRAILING EDGE FLAP - INBOARD TRAC K NUMBER 4 - STOP -
REMOVAL [Group 1-2, Configuration 1; Group 2, Configuration 3; Group 4, Configuration 1;
Group 6-7] ........................................... 1 4 8
FIGURE 16: LEFT SIDE - INBOARD TRAILING EDGE FLAP - INBOARD TRAC K NUMBER 4 - STOP -
INSTALLATION [Group 1-2, Configuration 2; Group 2, Configuration 4; Group 4, Configuration
2 ]  ................................................ 1 5 1
Export Controlled ECCN: 9E991
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REQUIREMENTS BULLETIN 747-57A2367
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FIGURE 17: LEFT SIDE - INBOARD TRAILING EDGE FLAP - INBOARD TRAC K NUMBER 4 - STOP -
INSTALLATION [Group 3, Configuration 2, 4; Group 5, Configurati o n  2 ]  ......... 1 5 4
FIGURE 18: LEFT SIDE - INBOARD TRAILING EDGE FLAP - INBOARD TRAC K NUMBER 4 - STOP -
INSTALLATION [Group 1-2, Configuration 1; Group 2, Configuration 3; Group 4, Configuration
1; Group 6-7] ......................................... 1 5 7
FIGURE 19: LEFT SIDE - INBOARD FOREFLAP - STOP LUG ATTACHMENT BO LTS - REMOVAL . 160
FIGURE 20: LEFT SIDE - INBOARD FOREFLAP - STOP LUG ATTACHMENT BO LTS - INSTALLATION
................................................. 1 6 3
FIGURE 21: LEFT SIDE - INBOARD FOREFLAP FLAP TRACK - ROLLERS - R E M O V A L ...... 1 6 6
FIGURE 22: LEFT SIDE - INBOARD FOREFLAP FLAP TRACK - ROLLERS - I NSTALLATION .... 1 7 0
FIGURE 23: LEFT SIDE - INBOARD FOREFLAP ASSEMBLY - DETAILED INSP ECTIONS ...... 1 7 4
FIGURE 24: LEFT SIDE - INBOARD FOREFLAP AND MIDFLAP ASSEMBLY - D ETAILED INSPECTIONS
................................................. 1 7 8
FIGURE 25: LEFT SIDE - INBOARD FOREFLAP AND MIDFLAP ASSEMBLY - D ETAILED INSPECTIONS
................................................. 1 8 1
FIGURE 26: RIGHT SIDE - INBOARD FOREFLAP - INBOARD LINK ASSEMBLY -  R E M O V A L .... 1 8 4
FIGURE 27: RIGHT SIDE - INBOARD FOREFLAP - INBOARD LINK ASSEMBLY  - INSTALLATION . 186
FIGURE 28: RIGHT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSE MBLY WITH EXISTING
DOUBLER INSTALLED - REMOVAL [Group 1; Group 2, Configuration 1-2; Group 3, Configuration
1-2; Group 4-8] ........................................ 1 8 9
FIGURE 29: RIGHT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSE MBLY WITH EXISTING
DOUBLER INSTALLED - INSTALLATION [Group 1] .................... 1 9 2
FIGURE 30: RIGHT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSE MBLY WITH EXISTING
DOUBLER INSTALLED - INSTALLATION [Group 2, Configuration 1-2; Group 3, Configuration
1-2; Group 4-6] ........................................ 1 9 5
FIGURE 31: RIGHT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSE MBLY WITH EXISTING
DOUBLER INSTALLED - INSTALLATION [Group 7-8] ................... 1 9 8
FIGURE 32: RIGHT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSEMBLY WITHOUT EXISTING
DOUBLER - REMOVAL [Group 2, Configuration 3-4; Group 3, Configu ration 3-4] .... 2 0 1
FIGURE 33: RIGHT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSEMBLY WITHOUT EXISTING
DOUBLER - INSTALLATION [Group 2, Configuration 3-4; Group 3, Co nfiguration 3-4] . 204
FIGURE 34: RIGHT SIDE - INBOARD FOREFLAP CARRIAGE ATTACHMENT - CENTER TOGGLE ROLLER
-  R E M O V A L .......................................... 2 1 1
FIGURE 35: RIGHT SIDE - INBOARD FOREFLAP CARRIAGE ATTACHMENT - CENTER TOGGLE ROLLER
- INSTALLATION ....................................... 2 1 4
FIGURE 36: RIGHT SIDE - INBOARD TRAILING EDGE FLAP TRACKS NUMBER  5 AND 6 - STOP -
REMOVAL [Group 1-2, Configuration 2; Group 2, Configuration 4; Group 3, Configuration 2, 4;
Group 4-5, Configuration 2] .................................. 2 1 7
FIGURE 37: RIGHT SIDE - INBOARD TRAILING EDGE FLAP - OUTBOARD TR ACK NUMBER 6 - STOP
- INSTALLATION [Group 1-2, Configuration 2; Group 2, Configuration 4; Group 3, Configuration
2, 4; Group 4-5, Configuration 2] ............................... 2 2 0
FIGURE 38: RIGHT SIDE - INBOARD TRAILING EDGE FLAP - OUTBOARD TR ACK NUMBER 6 - STOP
- REMOVAL [Group 1-2, Configuration 1; Group 2, Configuration 3; Group 3, Configuration 1,
3; Group 4-5, Configuration 1; Group 6-8] .......................... 2 2 3
FIGURE 39: RIGHT SIDE - INBOARD TRAILING EDGE FLAP - OUTBOARD TR ACK NUMBER 6 - STOP
- INSTALLATION [Group 1-2, Configuration 1; Group 2, Configuration 3; Group 3, Configuration
1, 3; Group 4-5, Configuration 1; Group 6-8] ........................ 2 2 6
FIGURE 40: RIGHT SIDE - INBOARD TRAILING EDGE FLAP - INBOARD TRA CK NUMBER 5 - STOP -
REMOVAL [Group 1-2, Configuration 1; Group 2, Configuration 3; Group 4, Configuration 1;
Group 6-7] ........................................... 2 2 9
Export Controlled ECCN: 9E991
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REQUIREMENTS BULLETIN 747-57A2367
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FIGURE 41: RIGHT SIDE - INBOARD TRAILING EDGE FLAP - OUTBOARD TR ACK NUMBER 5 - STOP
- INSTALLATION [Group 1-2, Configuration 2; Group 2, Configuration 4; Group 4, Configuration
2 ]  ................................................ 2 3 2
FIGURE 42: RIGHT SIDE - INBOARD TRAILING EDGE FLAP - INBOARD TRA CK NUMBER 5 - STOP -
INSTALLATION [Group 3, Configuration 2, 4; Group 5, Configurati o n  2 ]  ......... 2 3 5
FIGURE 43: RIGHT SIDE - INBOARD TRAILING EDGE FLAP - INBOARD TRA CK NUMBER 5 - STOP -
INSTALLATION [Group 1-2, Configuration 1; Group 2, Configuration 3; Group 4, Configuration
1; Group 6-7] ......................................... 2 3 8
FIGURE 44: RIGHT SIDE - INBOARD FOREFLAP - STOP LUG ATTACHMENT B OLTS - REMOVAL . 241
FIGURE 45: RIGHT SIDE - INBOARD FOREFLAP - STOP LUG ATTACHMENT B OLTS - INSTALLATION
................................................. 2 4 4
FIGURE 46: RIGHT SIDE - INBOARD FOREFLAP FLAP TRACK - ROLLERS - R E M O V A L ...... 2 4 7
FIGURE 47: RIGHT SIDE - INBOARD FOREFLAP FLAP TRACK - ROLLERS - INSTALLATION . . . 251
FIGURE 48: LEFT SIDE - INBOARD TRAILING EDGE FLAP - INBOARD TRAC K NUMBER 4 - STOP -
REMOVAL [Group 3, Configuration 1, 3; Group 5, Configuration 1;  G r o u p  8 ]  ....... 2 5 5
FIGURE 49: LEFT SIDE - INBOARD TRAILING EDGE FLAP - INBOARD TRAC K NUMBER 4 - STOP -
INSTALLATION [Group 3, Configuration 1, 3; Group 5, Configurati o n  1 ;  G r o u p  8 ]  .... 2 5 8
FIGURE 50: RIGHT SIDE - INBOARD TRAILING EDGE FLAP - INBOARD TRA CK NUMBER 5 - TRACK -
STOP - REMOVAL [Group 3, Configuration 1, 3; Group 5, Configura tion 1; Group 8] . . 261
FIGURE 51: RIGHT SIDE - INBOARD TRAILING EDGE FLAP - INBOARD TRA CK NUMBER 5 - STOP -
INSTALLATION [Group 3, Configuration 1, 3; Group 5, Configurati o n  1 ;  G r o u p  8 ]  .... 2 6 4
FIGURE 52: RIGHT SIDE - INBOARD FOREFLAP ASSEMBLY - DETAILED INS P E C T I O N S ..... 2 6 7
FIGURE 53: RIGHT SIDE - INBOARD FOREFLAP AND MIDFLAP ASSEMBLY - DETAILED INSPECTIONS
................................................. 2 7 1
FIGURE 54: RIGHT SIDE - INBOARD FOREFLAP AND MIDFLAP ASSEMBLY - DETAILED INSPECTIONS
................................................. 2 7 4
FIGURE 55: LEFT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSEMBLY - LUBRICATION . 277
FIGURE 56: RIGHT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSE MBLY - LUBRICATION
................................................. 2 8 0
FIGURE 57: LEFT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSEM BLY - GENERAL VISUAL
INSPECTION ......................................... 2 8 3
FIGURE 58: RIGHT SIDE - INBOARD FOREFLAP - OUTBOARD FITTING ASSEMBLY - GENERAL VISUAL
INSPECTION ......................................... 2 8 6
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Commercial 
Airplanes
747
Requirements Bulletin
ALERT
Number: 747-57A2367 RB
Original Issue: November 15, 2019
ATA System: 5752 2751
SUBJECT: WINGS - Flaps - Trailing Edge - Inboard Foreflap Assembly Change and Inspection
THIS DOCUMENT IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN
PARAGRAPH 1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS DOCUMENT
TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS DOCUMENT TO THE
NEW OWNER. THIS IS AN ENHANCED REQUIRED FOR COMPLIANCE DOCUMENT. THE BOEING
PROCESSES USED TO CREATE THE SERVICE BULLETIN (SB) AND THE REQUIREMENTS BULLETIN
(RB) ENSURE THAT THE INFORMATION BETWEEN "RC START" AND "RC END" IN THE SB ARE IDENTICAL
TO THE INFORMATION IN THE SAME SECTIONS (COMPLIANCE, WORK INSTRUCTIONS…) OF THE RB
WHICH THE SB REFERS TO AS THE RELATED DOCUMENT.
1. Effectivity
A. Airplanes
This bulletin is applicable to 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F,
747-300, 747-400, 747-400D, 747-400F, 747SR Airplane(s), line number(s) 1-264, 266-267, 269,
271-272, 274, 276-277, 279, 281, 283, 285, 287, 289, 291-292, 294-297, 299-300, 302-303, 305,
308-324, 326-328, 330, 332-366, 368-370, 372, 374-404, 406-412, 414, 416-432, 434-438, 440,
442-444, 446, 448-454, 456-466, 468-472, 474-500, 502-504, 506, 508-528, 530-533, 535-536,
538-559, 561-563, 565-566, 568-668, 670-675, 677-1419 in 8 Group(s). Where the effectivity is
presented with hyphens between line numbers, the airplane applicability means "through" and
"inclusive", e.g. line numbers 1-9 means line numbers 1 through 9 inclusive.
DESCRIPTIONCONFIGURATIONGROUP
747-100/-200B/-200C/-200F/-747SR Airplanes.-1
Airplanes that have replaced stop and attachment bolts in accordance
with 747-57-2218.
1
Airplanes that have not replaced stop and attachment bolts in
accordance with 747-57-2218.
2
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DESCRIPTIONCONFIGURATIONGROUP
747-100/-200B/-200C/-200F Airplanes.-2
Airplanes that have completed terminating action in 747-57-2218,
and have installed a doubler under the inboard flap sequence carriage
attachment fitting in accordance with 747-57-2302.
1
Airplanes that have not completed terminating action in 747-57-2218,
and have installed a doubler under the inboard flap sequence carriage
attachment fitting in accordance with 747-57-2302.
2
Airplanes that have completed terminating action in 747-57-2218,
and have not installed a doubler under the inboard flap sequence
carriage attachment fitting in accordance with 747-57-2302.
3
Airplanes that have not completed terminating action in 747-57-2218,
and have not installed a doubler under the inboard flap sequence
carriage attachment fitting in accordance with 747-57-2302.
4
747SR Airplanes.-3
Airplanes that have completed terminating action in 747-57-2218,
and have installed a doubler under the inboard flap sequence carriage
attachment fitting in accordance with 747-57-2302.
1
Airplanes that have not completed terminating action in 747-57-2218,
and have installed a doubler under the inboard flap sequence carriage
attachment fitting in accordance with 747-57-2302.
2
Airplanes that have completed terminating action in 747-57-2218,
and have not installed a doubler under the inboard flap sequence
carriage attachment fitting in accordance with 747-57-2302.
3
Airplanes that have not completed terminating action in 747-57-2218,
and have not installed a doubler under the inboard flap sequence
carriage attachment fitting in accordance with 747-57-2302.
4
747-100/-100B/-200B/-200C/-200F Airplanes.-4
Airplanes that have completed terminating action in 747-57-2218.1
Airplanes that have not completed terminating action in 747-57-2218.2
747-100B/-747SR Airplanes.-5
Airplanes that have completed terminating action in 747-57-2218.1
Airplanes that have not completed terminating action in 747-57-2218.2
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DESCRIPTIONCONFIGURATIONGROUP
747-100B/-100B
SUD/-200B/-200C/-200F/-300/-400/-400D/-400F/-747SR Airplanes.
-6
747-400 Airplanes.-7
747-400/-400F Airplanes.-8
Airplane Models:
747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D,
747-400F, 747SR
GroupVariable Number
1RA001 - RA034
1RA101 - RA115
1RA161 - RA164
1RA201 - RA203
1RA216 - RA217
1RA245 - RA246
1RA251 - RA262
2RA263 - RA264
4RA265 - RA266
1RA301 - RA315
2RA316 - RA317
4RA318
1RA351 - RA360
1RA369 - RA373
1RA401 - RA418
1RA501 - RA502
1RA521 - RA527
4RA528
1RA532 - RA540
2RA541 - RA542
4RA543 - RA548
1RA551 - RA552
GroupVariable Number
1RA559 - RA561
1RA581 - RA582
1RA585
1RA601 - RA602
1RA631 - RA635
1RA651 - RA652
1RA671 - RA677
1RA701 - RA702
1RA721 - RA724
4RA725 - RA731
1RA741 - RA744
2RA745
2RA749
4RA750
1RA761 - RA762
1RA781 - RA783
4RA784
1RA901 - RA916
1RB001 - RB006
2RB007 - RB009
4RB010 - RB012
1RB013 - RB014
GroupVariable Number
2RB015
4RB016
1RB041 - RB044
1RB071 - RB075
1RB101 - RB102
6RB411 - RB413
6RB421
1RB601
3RB602 - RB606
5RB607
5RB681 - RB696
6RB697
4RB711
5RB721 - RB722
6RB723
4RB741 - RB748
1RD001 - RD002
2RD003
4RD004
1RD021 - RD022
1RD041 - RD042
2RD043
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GroupVariable Number
4RD044 - RD059
1RD071 - RD072
4RD081 - RD083
4RD091 - RD092
1RD101 - RD102
2RD103 - RD104
4RD121 - RD127
4RD131 - RD144
6RD166 - RD167
4RD171 - RD172
4RD181 - RD183
4RD201 - RD204
4RD221 - RD224
6RD225 - RD227
6RD231 - RD235
4RD241 - RD243
4RD251 - RD257
6RD258 - RD262
4RD271 - RD272
6RD291 - RD292
6RD301 - RD302
6RD311
4RD351 - RD356
6RD357 - RD358
4RD361 - RD365
6RD366
4RD381 - RD383
4RD411 - RD414
4RD421 - RD426
4RD431 - RD435
4RD441 - RD442
4RD451 - RD454
6RD455 - RD456
GroupVariable Number
4RD461
4RD471 - RD475
4RD513 - RD519
4RD531 - RD533
4RD551
4RD561
4RD571
4RD581 - RD583
4RD591 - RD593
4RD601 - RD607
4RD621 - RD623
4RD641 - RD649
4RD651 - RD658
6RD659
4RD661
4RD671
4RD681 - RD682
4RD691 - RD692
4RD701 - RD702
4RD721 - RD722
4RD741 - RD742
4RD751 - RD753
6RD754 - RD755
4RD761
6RD771 - RD775
6RD781 - RD783
6RD791 - RD792
4RE001
8RF001 - RF006
1RJ131 - RJ132
2RJ133
4RJ151 - RJ152
4RJ301 - RJ303
GroupVariable Number
6RJ322
4RJ331 - RJ333
8RL401 - RL403
8RL411 - RL436
8RL451 - RL456
8RL461 - RL462
8RL471 - RL481
8RL491 - RL492
8RL501 - RL502
8RL511 - RL516
8RL521 - RL522
8RL531 - RL534
8RL551
8RL561 - RL568
8RL571 - RL572
8RL576 - RL577
8RL579
8RL581 - RL586
8RL651 - RL655
8RL671 - RL675
8RL681 - RL684
8RL751 - RL752
7RM001 - RM007
7RM010 - RM013
7RM021 - RM024
7RM026 - RM030
7RM036 - RM045
7RM051 - RM053
7RM071
7RM081 - RM084
7RM091
7RM096 - RM097
7RM116 - RM117
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GroupVariable Number
7RM126 - RM132
7RM136 - RM147
7RM156 - RM157
8RM158
7RM166 - RM177
7RM191 - RM192
7RM231 - RM233
7RM241 - RM246
7RM261 - RM264
7RM316 - RM318
7RM331 - RM333
7RM341
7RM351 - RM355
7RM366 - RM367
7RM401 - RM403
7RM426
7RM431
7RM441 - RM443
7RM445
7RM801 - RM803
7RM811 - RM813
8RM851 - RM859
8RM861 - RM863
8RM871 - RM899
8RM901 - RM906
8RM911
4RR001 - RR005
4RR021 - RR023
6RR024 - RR025
4RR031
1RR201
4RR202 - RR203
6RR204 - RR206
GroupVariable Number
2RR221
4RR222 - RR226
2RR261
4RR262 - RR264
6RR265 - RR267
2RR301
4RR302 - RR306
6RR307 - RR310
4RR331 - RR332
4RR336
4RR341 - RR345
4RR361 - RR362
4RR421 - RR422
6RR431 - RR432
6RR441 - RR442
6RR451
4RR501 - RR504
4RR521
6RR522
6RR526
4RR531
6RR551 - RR556
4RR561
6RR566
6RR701
6RR721 - RR722
8RR723 - RR724
6RR746 - RR748
6RR851 - RR856
6RR861
8RR862
6RR951 - RR952
6RS001 - RS002
GroupVariable Number
6RS201
6RS211 - RS212
6RS221 - RS222
6RS231 - RS241
6RS251 - RS259
6RS263
6RS265 - RS268
6RS271 - RS276
6RS291 - RS292
6RS301 - RS306
6RS311 - RS320
6RS331 - RS333
6RS341 - RS342
6RS699
6RS701 - RS703
6RS711 - RS713
6RS721 - RS722
6RS731 - RS732
6RS741 - RS743
6RS751 - RS752
6RS761 - RS762
6RS771
6RS781 - RS782
6RS786
6RT001 - RT013
7RT014
6RT021 - RT022
6RT031 - RT034
7RT035
6RT041 - RT047
6RT061
6RT071 - RT075
6RT101 - RT103
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GroupVariable Number
6RT121
6RT131 - RT136
7RT137
6RT151 - RT152
6RT161 - RT168
6RT401 - RT412
6RT431 - RT446
7RT447
6RT451 - RT469
6RT471 - RT499
6RT501 - RT535
6RT551 - RT568
6RT571 - RT591
6RT601 - RT627
7RT628 - RT630
6RT631 - RT637
7RT638 - RT640
GroupVariable Number
6RT641 - RT657
6RT671 - RT673
6RT681 - RT682
6RT691 - RT699
6RT701 - RT704
6RT711 - RT717
6RT741 - RT755
7RT756 - RT757
6RT776 - RT777
6RT781 - RT784
6RT801 - RT802
7RT803
6RT811 - RT814
6RT831 - RT837
6RT861 - RT864
6RT876 - RT880
6RT931 - RT932
GroupVariable Number
6RT945 - RT949
6RT951 - RT954
7RT955
6RT966 - RT967
6RU001 - RU006
6RU016
7RU017
6RU031 - RU032
6RU051 - RU052
6RU059 - RU062
6RU081 - RU083
6RU101
7RU102
6RU121 - RU129
7RU130 - RU132
6RU801 - RU809
6RU831 - RU841
B. Spares Affected
None.
2. CONCURRENT REQUIREMENTS
None.
3. COMPLIANCE
The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this
Requirements Bulletin 747-57A2367 RB. The Airworthiness Directive will make the compliance tasks and
times given in this Requirements Bulletin 747-57A2367 RB mandatory.
Accomplish the required actions, based on the applicable conditions in Tables 1 to 4 , in accordance with
Paragraph 3. Accomplishment Instructions.
When more than one OPTION is given for a CONDITION, do only one of the OPTION numbers. When
more than one ACTION is given for a CONDITION or an OPTION, do all of the ACTION numbers for that
CONDITION or OPTION.
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Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Repeat Interval
(Not to Exceed)
Compliance Time (Whichever
Occurs Later)
ActionCondition
-Within 1,960
flight cycles af-
ter the original
issue date of
Requirements
Bulletin 747-
57A2367 RB.
Within 2 years
after the origi-
nal issue date
of Require-
ments Bulletin
747-57A2367
RB.
ACTION 1:
Do a replacement of the in-
board foreflap inboard link as-
sembly, outboard fitting assem-
bly, and center toggle roller.
All airplanes.
ACTION 2:
Do a general visual inspection
of the inboard foreflap assem-
bly stop, stop attachment
bolts, stop lug attachment
bolts, and rollers in the midflap
to identify the parts production
configuration.
-Before further flight.CONDITION 1 (ACTION 1):CONDITION 1:
Do a replacement of any affect-
ed inboard foreflap assembly
part.
STOP, STOP ATTACH-
MENT BOLTS, STOP
LUG ATTACHMENT
BOLTS, OR ROLLERS
IN THE MIDFLAP ARE
NOT THE LATEST
PRODUCTION CONFIG-
URATION.
5,880 flight cycles
or 6 years,
whichever occurs
first.
-CONDITION 1 (ACTION 2):
Repeat the replacement of the
inboard foreflap inboard link
assembly, outboard fitting as-
sembly, and center toggle
roller.
(a)
5,880 flight cycles
or 6 years,
whichever occurs
first.
-Repeat the replacement of the
inboard foreflap inboard link
assembly, outboard fitting as-
sembly, and center toggle
roller.
CONDITION 2:
STOP, STOP ATTACH-
MENT BOLTS, STOP
LUG ATTACHMENT
BOLTS, OR ROLLERS
IN THE MIDFLAP ARE
THE LATEST PRODUC-
TION CONFIGURA-
TION.
(a)
(a) Boeing recommends that the inspections in Compliance Table 4 are done at the same time as the replace-
ment of the inboard foreflap inboard link assembly, outboard fitting assembly, and center toggle roller.
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Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Repeat Interval
(Not to Exceed)
Compliance TimeActionCondition
-Within 6 months after the original
issue date of Requirements Bul-
letin 747-57A2367 RB.
Do a detailed inspection of the
sequence carriage for broken,
binding, loose or missing
rollers; outboard fitting assem-
bly and inboard link assembly
for any crack or bearing migra-
tion; stop for any crack; stop
lug and stop for any loose or
missing attachment bolts.
All airplanes.
-Before further flight.CONDITION 3 (ACTION 1):CONDITION 3:
Do a replacement or installa-
tion of any affected roller.
ANY BROKEN, BIND-
ING, LOOSE OR MISS-
ING ROLLER FOUND.
(a) -Before further flight.CONDITION 3 (ACTION 2):Do the lubrication of the out-
board fitting assembly.
(b)
-Before further flight.CONDITION 3 (ACTION 3):
Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease.
(b)
-Before further flight.CONDITION 4 (ACTION 1):CONDITION 4:
Do a replacement of any affect-
ed outboard fitting assembly
or inboard link assembly of the
inboard foreflap.
ANY CRACK OR
BEARING MIGRATION
FOUND IN THE OUT-
BOARD FITTING AS-
SEMBLY OR INBOARD
LINK ASSEMBLY. (a)
(c)
-Before further flight.CONDITION 4 (ACTION 2):
Do the lubrication of the out-
board fitting assembly.
(b)
-Before further flight.CONDITION 4 (ACTION 3):
Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease.
(b)
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Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Repeat Interval
(Not to Exceed)
Compliance TimeActionCondition
-Before further flight.CONDITION 5 (ACTION 1):CONDITION 5:
Do a replacement of the in-
board foreflap assembly affect-
ed stop lug attachment bolts.
ANY LOOSE OR MISS-
ING STOP LUG AT-
TACHMENT BOLTS
FOUND. (a) -Before further flight.CONDITION 5 (ACTION 2):
Do the lubrication of the out-
board fitting assembly.
(b)
-Before further flight.CONDITION 5 (ACTION 3):
Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease.
(b)
-Before further flight.CONDITION 6 (ACTION 1):CONDITION 6:
Do a replacement of any affect-
ed stop or attachment bolt(s).
ANY CRACK FOUND
ON THE STOP, OR
ANY LOOSE OR MISS-
ING STOP ATTACH-
MENT BOLTS. (a)
-Before further flight.CONDITION 6 (ACTION 2):
Do the lubrication of the out-
board fitting assembly.
(b)
-Before further flight.CONDITION 6 (ACTION 3):
Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease.
(b)
-Before further flight.CONDITION 7 (ACTION 1):CONDITION 7:
Do the lubrication of the out-
board fitting assembly.
NO BROKEN, BINDING,
LOOSE OR MISSING
ROLLER; NO CRACK
OR BEARING MIGRA-
TION; NO LOOSE OR
MISSING ATTACH-
MENT BOLTS FOUND.
(b)
-Before further flight.CONDITION 7 (ACTION 2):
Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease.
(b)
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Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Repeat Interval
(Not to Exceed)
Compliance TimeActionCondition
6 months.-Repeat the detailed inspection
of the sequence carriage for
broken, binding, loose or
missing rollers; outboard fitting
assembly and inboard link as-
sembly for any crack or bear-
ing migration; stop for any
crack; stop lug and stop for
any loose or missing attach-
ment bolts.
CONDITION 8:
ANY GREASE FOUND
EXUDING FROM THE
OUTBOARD FITTING
ASSEMBLY.
-Before further flight.CONDITION 9 (ACTION 1):CONDITION 9:
Do a replacement of the out-
board fitting assembly of the
inboard foreflap.
NO GREASE FOUND
EXUDING FROM THE
OUTBOARD FITTING
ASSEMBLY. 6 months.-CONDITION 9 (ACTION 2):
Repeat the detailed inspection
of the sequence carriage for
broken, binding, loose or
missing rollers; outboard fitting
assembly and inboard link as-
sembly for any crack or bear-
ing migration; stop for any
crack; stop lug and stop for
any loose or missing attach-
ment bolts.
(a) More than one condition can be applicable to each airplane.
(b) If more than one condition is found it is only necessary to do the lubrication and general visual inspection
of the outboard fitting assembly once.
(c) If the outboard fitting assembly was replaced it is only necessary to do the lubrication of the outboard fitting
assembly once.
Table 3: Left and Right Side Inboard Foreflap Assembly Sequence Carriage, Foreflap Attachment Fittings,
and Midflap Inspection
Repeat Interval
(Not to Exceed)
Compliance TimeActionCondition
-Within 18 months after the origi-
nal issue date of Requirements
Bulletin 747-57A2367 RB.
Do a detailed inspection of the
inboard foreflap sequence
carriage lugs for any crack or
bushing migration; sequence
carriage toggle for any crack
or gouge; midflap for any bro-
ken, binding or missing rollers.
All airplanes.
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Table 3: Left and Right Side Inboard Foreflap Assembly Sequence Carriage, Foreflap Attachment Fittings,
and Midflap Inspection
Repeat Interval
(Not to Exceed)
Compliance TimeActionCondition
-Before further flight.CONDITION 10 (ACTION 1):CONDITION 10:
Do a replacement of the se-
quence carriage.
ANY CRACK OR
BUSHING MIGRATION
FOUND ON THE SE-
QUENCE CARRIAGE.
(a)
18 months.-CONDITION 10 (ACTION 2):
Repeat the detailed inspection
of the inboard foreflap se-
quence carriage lugs for any
crack or bushing migration;
sequence carriage toggle for
any crack or gouge; midflap
for any broken, binding or
missing rollers.
-Before further flight.CONDITION 11 (ACTION 1):CONDITION 11:
Do a replacement of the toggle
or sequence carriage.
ANY CRACK OR
GOUGE FOUND ON
THE TOGGLE. (a) 18 months.-CONDITION 11 (ACTION 2):
Repeat the detailed inspection
of the inboard foreflap se-
quence carriage lugs for any
crack or bushing migration;
sequence carriage toggle for
any crack or gouge; midflap
for any broken, binding or
missing rollers.
-Before further flight.CONDITION 12 (ACTION 1):CONDITION 12:
Do a replacement of the affect-
ed roller in the midflap assem-
bly.
ANY BROKEN, BIND-
ING OR MISSING
ROLLERS FOUND. (a)
18 months.-CONDITION 12 (ACTION 2):
Repeat the detailed inspection
of the inboard foreflap se-
quence carriage lugs for any
crack or bushing migration;
sequence carriage toggle for
any crack or gouge; midflap
for any broken, binding or
missing rollers.
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Table 3: Left and Right Side Inboard Foreflap Assembly Sequence Carriage, Foreflap Attachment Fittings,
and Midflap Inspection
Repeat Interval
(Not to Exceed)
Compliance TimeActionCondition
18 months.-Repeat the detailed inspection
of the inboard foreflap se-
quence carriage lugs for any
crack or bushing migration;
sequence carriage toggle for
any crack or gouge; midflap
for any broken, binding or
missing rollers.
CONDITION 13:
NO CRACK, GOUGE,
BUSHING OR BEAR-
ING MIGRATION
FOUND; NO BROKEN,
BINDING OR MISSING
ROLLERS FOUND.
(a) More than one condition can be applicable to each airplane.
Table 4: Left and Right Side Inboard Foreflap Assembly Inspection
Repeat Interval
(Not to Exceed)
Compliance TimeActionCondition
-Within 2 years after the original
issue date of Requirements Bul-
letin 747-57A2367 RB.
Do a detailed inspection of the
inboard foreflap spar, rib and
skin assemblies, inboard fore-
flap track, inboard foreflap
track lever, and inboard fore-
flap track lever attachment fit-
ting for any crack or corrosion.
All airplanes.
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Table 4: Left and Right Side Inboard Foreflap Assembly Inspection
Repeat Interval
(Not to Exceed)
Compliance TimeActionCondition
-Before further flight.CONDITION 14, OPTION 1
(ACTION 1):
CONDITION 14:
ANY CRACK OR COR-
ROSION FOUND ON
THE INBOARD FORE-
FLAP SPAR, RIB OR
SKIN ASSEMBLY. (a)
Do a repair of any affected in-
board foreflap spar, rib or skin
assembly.
5,880 flight cycles
or 6 years,
whichever occurs
first.
CONDITION 14, OPTION 1
(ACTION 2):
Repeat the detailed inspection
of the inboard foreflap spar,
rib and skin assemblies, in-
board foreflap track, inboard
foreflap track lever, and in-
board foreflap track lever at-
tachment fitting for any crack
or corrosion.
-Before further flight.CONDITION 14, OPTION 2
(ACTION 1):
Do a replacement of any affect-
ed inboard foreflap assembly
with a serviceable inboard
foreflap assembly.
5,880 flight cycles
or 6 years,
whichever occurs
first.
-CONDITION 14, OPTION 2
(ACTION 2):
Repeat the detailed inspection
of the inboard foreflap spar,
rib and skin assemblies, in-
board foreflap track, inboard
foreflap track lever, and in-
board foreflap track lever at-
tachment fitting for any crack
or corrosion.
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Table 4: Left and Right Side Inboard Foreflap Assembly Inspection
Repeat Interval
(Not to Exceed)
Compliance TimeActionCondition
-Before further flight.CONDITION 15, OPTION 1
(ACTION 1):
CONDITION 15:
ANY CRACK OR COR-
ROSION FOUND ON
THE INBOARD FORE-
FLAP TRACK, IN-
BOARD FOREFLAP
TRACK LEVER, OR IN-
BOARD FOREFLAP
TRACK LEVER AT-
TACHMENT FITTING.
(a)
Do a replacement of any affect-
ed inboard foreflap track lever
attachment fitting or flap track
lever, or any affected inboard
foreflap track.
5,880 flight cycles
or 6 years,
whichever occurs
first.
-CONDITION 15, OPTION 1
(ACTION 2):
Repeat the detailed inspection
of the inboard foreflap spar,
rib and skin assemblies, in-
board foreflap track, inboard
foreflap track lever, and in-
board foreflap track lever at-
tachment fitting for any crack
or corrosion.
-Before further flight.CONDITION 15, OPTION 2
(ACTION 1):
Do a replacement of any affect-
ed inboard foreflap track lever
attachment fitting or flap track
lever and do a repair of any
affected inboard foreflap track.
5,880 flight cycles
or 6 years,
whichever occurs
first.
-CONDITION 15, OPTION 2
(ACTION 2):
Repeat the detailed inspection
of the inboard foreflap spar,
rib and skin assemblies, in-
board foreflap track, inboard
foreflap track lever, and in-
board foreflap track lever at-
tachment fitting for any crack
or corrosion.
5,880 flight cycles
or 6 years,
whichever occurs
first.
-Repeat the detailed inspection
of the inboard foreflap spar,
rib and skin assemblies, in-
board foreflap track, and in-
board foreflap track lever at-
tachment fitting for any crack
or corrosion.
CONDITION 16:
NO CRACK OR COR-
ROSION FOUND.
(a) More than one condition can be applicable to each airplane.
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4. APPROVAL
This Requirements Bulletin was examined by the Federal Aviation Administration (FAA). The changes
specified in this document 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 document and its approval were based on the airplane
in its original Boeing delivery configuration or as modified by other Boeing changes.
If an airplane has a non-Boeing modification or repair that affects a component or system also affected by
this Requirements Bulletin, the operator is responsible for obtaining appropriate regulatory agency approval
before incorporating this Requirements Bulletin.
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### Page 23

5.    ACCOMPLISHMENT INSTRUCTIONS
A. GENERAL INFORMATION
NOTE: 1. This is an Enhanced Required for Compliance document. There w ill be a separate
Service Bulletin (SB) and a separate Requirements Bulletin (RB). If an RB is mandated
by an Airworthiness Directive (AD), then all applicable requirements specified in the
RB must be done. For the related SB, some locations are marked RC Start and RC
End to identify the requirements that are restated from the RB. For the related SB,
the areas between RC Start and RC End, including sub-steps and any figures
identified between RC Start and RC End, must be done to comply with the AD.
Therefore, an Alternative Method of Compliance (AMOC) is required for any deviations
to steps between RC Start and RC End, including substeps and identified figures.
For the related SB, the steps not between RC Start and RC End may be deviated
from using accepted methods in accordance with the operator's maintenance or
inspection program without obtaining approval of an AMOC; this is provided that the
steps between RC Start and RC End, including sub-steps and identified figures, can
still be done as specified, and the airplane can be put back in an airworthy condition.
Figures not required for compliance are omitted from the RB.
2. This is an Enhanced Required for Compliance document. The Boe ing processes
used to create the Service Bulletin (SB) and the Requirements Bulletin (RB) ensure
that the information between "RC Start" and "RC End" in the SB are identical to the
information in the same sections (Compliance, Work Instructions...) of the RB which
the SB refers to as the related document.
3. The compliance times for the actions in WORK INSTRUCTIONS are  in Compliance.
4. Boeing Service Letter 747-SL-51-048, Damage Reporting and Rep air Plan/Design
Guidelines, is an acceptable procedure to request information from Boeing for
additional structural repair instructions. The Service Letter describes what information
must be provided to Boeing before a structural repair can be provided.
5. Unless shown differently, these dimensions and tolerances are  used:
– Linear dimensions are in inches
– Tolerance on linear dimensions, other than rivet and bolt edge  margins, is plus
or minus 0.03 inch
– Tolerance on rivet and bolt edge margin is plus or minus 0.05 inch
– Angular tolerance is plus or minus 2 degrees
– Hole dimensions for standard solid rivets and fasteners are in  Structural Repair
Manual (SRM) Chapter 51
– Torque Values:
— Values for structural fasteners are given in 747 Structural Repair Manual,
Chapter 51.
— Values for airframe maintenance tasks are included in Chapter 20 of 747
Aircraft Maintenance Manual (AMM).
— Values for electrical maintenance tasks are included in Chapter 20 of
Standard Wiring Practices Manual (SWPM).
— Values for engine maintenance tasks are included in Chapter 70 of 747
Aircraft Maintenance Manual (AMM).
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— Non-standard torque values for maintenance tasks are included in the
applicable installation step.
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 "in
accordance with" are included in the instruction, the procedure in the Boeing document
must be used.
7. Where the work instructions include installation of a kept pa rt, a new or serviceable
part with the same part number can be installed as an alternative to the kept part.
8. If it is necessary to remove more parts for access, you can r emove those parts. If
you can get access without removing identified parts, it is not necessary to remove
all of the identified parts. Jacking and shoring limitations must be observed.
9. Use the approved fastener, process and material substitutions  in accordance with
SRM Chapter 51.
10. A Detailed Inspection is defined as: An intensive examinatio n of a specific item,
installation or assembly to detect damage, failure or irregularity. This could include
tactile assessment in which a component or assembly can be checked for
tightness/security. Available lighting is normally supplemented with a direct source
of good lighting at an intensity deemed appropriate. Inspection aids such as mirrors
and magnifying lenses may be necessary. Surface cleaning and elaborate access
procedures may be required.
11. A General Visual Inspection is defined as: A visual examinat ion of an interior or
exterior area, installation or assembly to detect obvious damage, failure or irregularity.
This level of inspection is made from within touching distance, unless otherwise
specified. A mirror may be necessary to enhance visual access to all exposed surfaces
in the inspection area. This level of inspection is made under normally available
lighting conditions such as daylight, hangar lighting, flashlight or drop-light and may
require removal or opening of access panels or doors. Stands, ladders or platforms
may be required to gain proximity to the area being checked. Basic cleaning may be
required to ensure appropriate visibility.
12. When more than one OPTION is given for a CONDITION, do only one of the OPTION
numbers. When more than one ACTION is given for a CONDITION or an OPTION,
do all of the ACTION numbers for that CONDITION or OPTION.
13. The instructions in Work Instructions and the figures can in clude operation of tools
or test equipment. Boeing Engineering Tool Drawings, the Illustrated Tool and
Equipment Manual, and the Special Tool and Ground Handling Drawing Index contain
data on versions of the tools or test equipment that you can use. It is permitted to
use replaced tools. It is not permitted to use superseded tools.
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14. If the length of any fastener specified in this service bull etin 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. Refer to SOPM 20-50-01 for alternate
full threaded fasteners (screws) needed for installation in this service bulletin.
15. A serviceable inboard foreflap assembly is defined as an inb oard foreflap assembly
that has been modified in accordance with Table 1.
16. The latest production configuration is defined as the follow ing list of parts and part
numbers:
– Stop Attachment Bolts - BACB30US7K()
– Stop Attachment Nuts - BACN10HR7CD
– Stop - 65B26459-3
– Stop Lug Attachment Bolts - BACB30UU()K()
– Dead Weight Roller - 10-60516-530
B. WORK INSTRUCTIONS
1. Requirements
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Group 1:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 1:-ACTION 1:All airplanes.
GET ACCESS.Do a replacement of the in-
board foreflap inboard link
assembly, outboard fitting
assembly, and center toggle
roller.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 4.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 29.
Do PART 3:Left side center toggle roller:
PREPARATION.FIGURE 9 and FIGURE 10.
Do PART 4:
RESTORATION.
Do PART 3:Right side center toggle roller:
PREPARATION.FIGURE 34 and FIGURE 35.
Do PART 4:
RESTORATION.
Do PART 2:-ACTION 2 :
PART NUMBER
CONFIGURATION
IDENTIFICATION.
Do a general visual inspec-
tion of the inboard foreflap
assembly stop, stop attach-
ment bolts, stop lug attach-
ment bolts, and rollers in the
midflap to identify the parts
production configuration.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
26 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 27

Group 1:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Number 3 flap track stop and attach-
ment bolts:
CONDITION 1 (ACTION 1):
Do a replacement of any af-
fected inboard foreflap assem-
bly part.
CONDITION 1:
STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE NOT
THE LATEST PRO-
DUCTION CONFIGU-
RATION.
Group 1, Configuration 1:
FIGURE 13 and FIGURE 14.
Group 1, Configuration 2:
FIGURE 11 and FIGURE 12.
-Number 4 flap track stop and attach-
ment bolts:
Group 1, Configuration 1:
FIGURE 15 and FIGURE 18.
Group 1, Configuration 2:
FIGURE 11 and FIGURE 16.
-Number 5 flap track stop and attach-
ment bolts:
Group 1, Configuration 1:
FIGURE 40 and FIGURE 43.
Group 1, Configuration 2:
FIGURE 36 and FIGURE 41.
-Number 6 flap track stop and attach-
ment bolts:
Group 1, Configuration 1:
FIGURE 38 and FIGURE 39.
Group 1, Configuration 2:
FIGURE 36 and FIGURE 37.
-Left side stop lug attachment bolts:
FIGURE 19 and FIGURE 20.
-Right side stop lug attachment bolts:
FIGURE 44 and FIGURE 45.
-Left side flap track dead weight
rollers (split roller bushings):
FIGURE 21 and FIGURE 22.
-Right side flap track dead weight
rollers (split roller bushings):
FIGURE 46 and FIGURE 47.
Do PART 7:--
CLOSE ACCESS.
Do PART 1:-CONDITION 1 (ACTION 2):
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
27 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 28

Group 1:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
GET ACCESS.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
(a) FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 4.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 29.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
Do PART 7:--CONDITION 2:
CLOSE ACCESS.STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE THE
LATEST PRODUC-
TION CONFIGURA-
TION.
Do PART 1:
GET ACCESS.
-Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
(a)
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 4.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 29.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
(a) Boeing recommends that the inspections in Compliance Table 4 are done at the same time as the replace-
ment of the inboard foreflap inboard link assembly, outboard fitting assembly, and center toggle roller.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
28 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 29

Group 2:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 1:-ACTION 1:All airplanes.
GET ACCESS.Do a replacement of the in-
board foreflap inboard link
assembly, outboard fitting
assembly, and center toggle
roller.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
Group 2, Configuration 1-2:
FIGURE 3 and FIGURE 5.
Group 2, Configuration 3-4:
FIGURE 7 and FIGURE 8.
-Right side outboard fitting assembly:
Group 2, Configuration 1-2:
FIGURE 28 and FIGURE 30.
Group 2, Configuration 3-4:
FIGURE 32 and FIGURE 33.
Do PART 3:Left side center toggle roller:
PREPARATION.FIGURE 9 and FIGURE 10.
Do PART 4:
RESTORATION.
Do PART 3:Right side center toggle roller:
PREPARATION.FIGURE 34 and FIGURE 35.
Do PART 4:
RESTORATION.
Do PART 2:-ACTION 2 :
PART NUMBER
CONFIGURATION
IDENTIFICATION.
Do a general visual inspec-
tion of the inboard foreflap
assembly stop, stop attach-
ment bolts, stop lug attach-
ment bolts, and rollers in the
midflap to identify the parts
production configuration.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
29 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 30

Group 2:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Number 3 flap track stop and attach-
ment bolts:
CONDITION 1 (ACTION 1):
Do a replacement of any af-
fected inboard foreflap assem-
bly part.
CONDITION 1:
STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE NOT
THE LATEST PRO-
DUCTION CONFIGU-
RATION.
Group 2, Configuration 1, 3:
FIGURE 13 and FIGURE 14.
Group 2, Configuration 2, 4:
FIGURE 11 and FIGURE 12.
-Number 4 flap track stop and attach-
ment bolts:
Group 2, Configuration 1, 3:
FIGURE 15 and FIGURE 18.
Group 2, Configuration 2, 4:
FIGURE 11 and FIGURE 16.
-Number 5 flap track stop and attach-
ment bolts:
Group 2, Configuration 1, 3:
FIGURE 40 and FIGURE 43.
Group 2, Configuration 2, 4:
FIGURE 36 and FIGURE 41.
-Number 6 flap track stop and attach-
ment bolts:
Group 2, Configuration 1, 3:
FIGURE 38 and FIGURE 39.
Group 2, Configuration 2, 4:
FIGURE 36 and FIGURE 37.
-Left side stop lug attachment bolts:
FIGURE 19 and FIGURE 20.
-Right side stop lug attachment bolts:
FIGURE 44 and FIGURE 45.
-Left side flap track dead weight
rollers (split roller bushings):
FIGURE 21 and FIGURE 22.
-Right side flap track dead weight
rollers (split roller bushings):
FIGURE 46 and FIGURE 47.
Do PART 7:--
CLOSE ACCESS.
Do PART 1:-CONDITION 1 (ACTION 2):
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
30 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 31

Group 2:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
GET ACCESS.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
(a) FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
Group 2, Configuration 1-2:
FIGURE 3 and FIGURE 5.
Group 2, Configuration 3-4:
FIGURE 7 and FIGURE 8.
-Right side outboard fitting assembly:
Group 2, Configuration 1-2:
FIGURE 28 and FIGURE 30.
Group 2, Configuration 3-4:
FIGURE 32 and FIGURE 33.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
31 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 32

Group 2:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 7:--CONDITION 2:
CLOSE ACCESS.STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE THE
LATEST PRODUC-
TION CONFIGURA-
TION.
Do PART 1:
GET ACCESS.
-Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
(a)
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
Group 2, Configuration 1-2:
FIGURE 3 and FIGURE 5.
Group 2, Configuration 3-4:
FIGURE 7 and FIGURE 8.
-Right side outboard fitting assembly:
Group 2, Configuration 1-2:
FIGURE 28 and FIGURE 30.
Group 2, Configuration 3-4:
FIGURE 32 and FIGURE 33.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
(a) Boeing recommends that the inspections in Compliance Table 4 are done at the same time as the replace-
ment of the inboard foreflap inboard link assembly, outboard fitting assembly, and center toggle roller.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
32 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 33

Group 3:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 1:-ACTION 1:All airplanes.
GET ACCESS.Do a replacement of the in-
board foreflap inboard link
assembly, outboard fitting
assembly, and center toggle
roller.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
Group 3, Configuration 1-2:
FIGURE 3 and FIGURE 5.
Group 3, Configuration 3-4:
FIGURE 7 and FIGURE 8.
-Right side outboard fitting assembly:
Group 3, Configuration 1-2:
FIGURE 28 and FIGURE 30.
Group 3, Configuration 3-4:
FIGURE 32 and FIGURE 33.
Do PART 3:Left side center toggle roller:
PREPARATION.FIGURE 9 and FIGURE 10.
Do PART 4:
RESTORATION.
Do PART 3:Right side center toggle roller:
PREPARATION.FIGURE 34 and FIGURE 35.
Do PART 4:
RESTORATION.
Do PART 2:-ACTION 2 :
PART NUMBER
CONFIGURATION
IDENTIFICATION.
Do a general visual inspec-
tion of the inboard foreflap
assembly stop, stop attach-
ment bolts, stop lug attach-
ment bolts, and rollers in the
midflap to identify the parts
production configuration.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
33 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 34

Group 3:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Number 3 flap track stop and attach-
ment bolts:
CONDITION 1 (ACTION 1):
Do a replacement of any af-
fected inboard foreflap assem-
bly part.
CONDITION 1:
STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE NOT
THE LATEST PRO-
DUCTION CONFIGU-
RATION.
Group 3, Configuration 1, 3:
FIGURE 13 and FIGURE 14.
Group 3, Configuration 2, 4:
FIGURE 11 and FIGURE 12.
-Number 4 flap track stop and attach-
ment bolts:
Group 3, Configuration 1, 3:
FIGURE 48 and FIGURE 49.
Group 3, Configuration 2, 4:
FIGURE 11 and FIGURE 17.
-Number 5 flap track stop and attach-
ment bolts:
Group 3, Configuration 1, 3:
FIGURE 50 and FIGURE 51.
Group 3, Configuration 2, 4:
FIGURE 36 and FIGURE 42.
-Number 6 flap track stop and attach-
ment bolts:
Group 3, Configuration 1, 3:
FIGURE 38 and FIGURE 39.
Group 3, Configuration 2, 4:
FIGURE 36 and FIGURE 37.
-Left side stop lug attachment bolts:
FIGURE 19 and FIGURE 20.
-Right side stop lug attachment bolts:
FIGURE 44 and FIGURE 45.
-Left side flap track dead weight
rollers (split roller bushings):
FIGURE 21 and FIGURE 22.
-Right side flap track dead weight
rollers (split roller bushings):
FIGURE 46 and FIGURE 47.
Do PART 7:--
CLOSE ACCESS.
Do PART 1:-CONDITION 1 (ACTION 2):
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
34 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 35

Group 3:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
GET ACCESS.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
(a) FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
Group 3, Configuration 1-2:
FIGURE 3 and FIGURE 5.
Group 3, Configuration 3-4:
FIGURE 7 and FIGURE 8.
-Right side outboard fitting assembly:
Group 3, Configuration 1-2:
FIGURE 28 and FIGURE 30.
Group 3, Configuration 3-4:
FIGURE 32 and FIGURE 33.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
35 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 36

Group 3:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 7:--CONDITION 2:
CLOSE ACCESS.STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE THE
LATEST PRODUC-
TION CONFIGURA-
TION.
Do PART 1:
GET ACCESS.
-Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
(a)
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
Group 3, Configuration 1-2:
FIGURE 3 and FIGURE 5.
Group 3, Configuration 3-4:
FIGURE 7 and FIGURE 8.
-Right side outboard fitting assembly:
Group 3, Configuration 1-2:
FIGURE 28 and FIGURE 30.
Group 3, Configuration 3-4:
FIGURE 32 and FIGURE 33.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
(a) Boeing recommends that the inspections in Compliance Table 4 are done at the same time as the replace-
ment of the inboard foreflap inboard link assembly, outboard fitting assembly, and center toggle roller.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
36 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 37

Group 4:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 1:-ACTION 1:All airplanes.
GET ACCESS.Do a replacement of the in-
board foreflap inboard link
assembly, outboard fitting
assembly, and center toggle
roller.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 5.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 30.
Do PART 3:Left side center toggle roller:
PREPARATION.FIGURE 9 and FIGURE 10.
Do PART 4:
RESTORATION.
Do PART 3:Right side center toggle roller:
PREPARATION.FIGURE 34 and FIGURE 35.
Do PART 4:
RESTORATION.
Do PART 2:-ACTION 2 :
PART NUMBER
CONFIGURATION
IDENTIFICATION.
Do a general visual inspec-
tion of the inboard foreflap
assembly stop, stop attach-
ment bolts, stop lug attach-
ment bolts, and rollers in the
midflap to identify the parts
production configuration.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
37 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 38

Group 4:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Number 3 flap track stop and attach-
ment bolts:
CONDITION 1 (ACTION 1):
Do a replacement of any af-
fected inboard foreflap assem-
bly part.
CONDITION 1:
STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE NOT
THE LATEST PRO-
DUCTION CONFIGU-
RATION.
Group 4, Configuration 1:
FIGURE 13 and FIGURE 14.
Group 4, Configuration 2:
FIGURE 11 and FIGURE 12.
-Number 4 flap track stop and attach-
ment bolts:
Group 4, Configuration 1:
FIGURE 15 and FIGURE 18.
Group 4, Configuration 2:
FIGURE 11 and FIGURE 16.
-Number 5 flap track stop and attach-
ment bolts:
Group 4, Configuration 1:
FIGURE 40 and FIGURE 43.
Group 4, Configuration 2:
FIGURE 36 and FIGURE 41.
-Number 6 flap track stop and attach-
ment bolts:
Group 4, Configuration 1:
FIGURE 38 and FIGURE 39.
Group 4, Configuration 2:
FIGURE 36 and FIGURE 37.
-Left side stop lug attachment bolts:
FIGURE 19 and FIGURE 20.
-Right side stop lug attachment bolts:
FIGURE 44 and FIGURE 45.
-Left side flap track dead weight
rollers (split roller bushings):
FIGURE 21 and FIGURE 22.
-Right side flap track dead weight
rollers (split roller bushings):
FIGURE 46 and FIGURE 47.
Do PART 7:--
CLOSE ACCESS.
Do PART 1:-CONDITION 1 (ACTION 2):
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
38 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 39

Group 4:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
GET ACCESS.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
(a) FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 5.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 30.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
Do PART 7:--CONDITION 2:
CLOSE ACCESS.STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE THE
LATEST PRODUC-
TION CONFIGURA-
TION.
Do PART 1:
GET ACCESS.
-Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
(a)
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 5.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 30.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
(a) Boeing recommends that the inspections in Compliance Table 4 are done at the same time as the replace-
ment of the inboard foreflap inboard link assembly, outboard fitting assembly, and center toggle roller.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
39 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 40

Group 5:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 1:-ACTION 1:All airplanes.
GET ACCESS.Do a replacement of the in-
board foreflap inboard link
assembly, outboard fitting
assembly, and center toggle
roller.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 5.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 30.
Do PART 3:Left side center toggle roller:
PREPARATION.FIGURE 9 and FIGURE 10.
Do PART 4:
RESTORATION.
Do PART 3:Right side center toggle roller:
PREPARATION.FIGURE 34 and FIGURE 35.
Do PART 4:
RESTORATION.
Do PART 2:-ACTION 2 :
PART NUMBER
CONFIGURATION
IDENTIFICATION.
Do a general visual inspec-
tion of the inboard foreflap
assembly stop, stop attach-
ment bolts, stop lug attach-
ment bolts, and rollers in the
midflap to identify the parts
production configuration.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
40 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 41

Group 5:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Number 3 flap track stop and attach-
ment bolts:
CONDITION 1 (ACTION 1):
Do a replacement of any af-
fected inboard foreflap assem-
bly part.
CONDITION 1:
STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE NOT
THE LATEST PRO-
DUCTION CONFIGU-
RATION.
Group 5, Configuration 1:
FIGURE 13 and FIGURE 14.
Group 5, Configuration 2:
FIGURE 11 and FIGURE 12.
-Number 4 flap track stop and attach-
ment bolts:
Group 5, Configuration 1:
FIGURE 48 and FIGURE 49.
Group 5, Configuration 2:
FIGURE 11 and FIGURE 17.
-Number 5 flap track stop and attach-
ment bolts:
Group 5, Configuration 1:
FIGURE 50 and FIGURE 51.
Group 5, Configuration 2:
FIGURE 36 and FIGURE 42.
-Number 6 flap track stop and attach-
ment bolts:
Group 5, Configuration 1:
FIGURE 38 and FIGURE 39.
Group 5, Configuration 2:
FIGURE 36 and FIGURE 37.
-Left side stop lug attachment bolts:
FIGURE 19 and FIGURE 20.
-Right side stop lug attachment bolts:
FIGURE 44 and FIGURE 45.
-Left side flap track dead weight
rollers (split roller bushings):
FIGURE 21 and FIGURE 22.
-Right side flap track dead weight
rollers (split roller bushings):
FIGURE 46 and FIGURE 47.
Do PART 7:--
CLOSE ACCESS.
Do PART 1:-CONDITION 1 (ACTION 2):
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
41 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 42

Group 5:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
GET ACCESS.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
(a) FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 5.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 30.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
Do PART 7:--CONDITION 2:
CLOSE ACCESS.STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE THE
LATEST PRODUC-
TION CONFIGURA-
TION.
Do PART 1:
GET ACCESS.
-Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
(a)
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 5.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 30.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
(a) Boeing recommends that the inspections in Compliance Table 4 are done at the same time as the replace-
ment of the inboard foreflap inboard link assembly, outboard fitting assembly, and center toggle roller.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
42 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 43

Group 6:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 1:-ACTION 1:All airplanes.
GET ACCESS.Do a replacement of the in-
board foreflap inboard link
assembly, outboard fitting
assembly, and center toggle
roller.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 5.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 30.
Do PART 3:Left side center toggle roller:
PREPARATION.FIGURE 9 and FIGURE 10.
Do PART 4:
RESTORATION.
Do PART 3:Right side center toggle roller:
PREPARATION.FIGURE 34 and FIGURE 35.
Do PART 4:
RESTORATION.
Do PART 2:-ACTION 2 :
PART NUMBER
CONFIGURATION
IDENTIFICATION.
Do a general visual inspec-
tion of the inboard foreflap
assembly stop, stop attach-
ment bolts, stop lug attach-
ment bolts, and rollers in the
midflap to identify the parts
production configuration.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
43 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 44

Group 6:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Number 3 flap track stop and attach-
ment bolts:
CONDITION 1 (ACTION 1):
Do a replacement of any af-
fected inboard foreflap assem-
bly part.
CONDITION 1:
STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE NOT
THE LATEST PRO-
DUCTION CONFIGU-
RATION.
FIGURE 13 and FIGURE 14.
-Number 4 flap track stop and attach-
ment bolts:
FIGURE 15 and FIGURE 18.
-Number 5 flap track stop and attach-
ment bolts:
FIGURE 40 and FIGURE 43.
-Number 6 flap track stop and attach-
ment bolts:
FIGURE 38 and FIGURE 39.
-Left side stop lug attachment bolts:
FIGURE 19 and FIGURE 20.
-Right side stop lug attachment bolts:
FIGURE 44 and FIGURE 45.
-Left side flap track dead weight
rollers (split roller bushings):
FIGURE 21 and FIGURE 22.
-Right side flap track dead weight
rollers (split roller bushings):
FIGURE 46 and FIGURE 47.
Do PART 7:--
CLOSE ACCESS.
Do PART 1:-CONDITION 1 (ACTION 2):
GET ACCESS.Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
(a) FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 5.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 30.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
44 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 45

Group 6:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Left side center toggle roller: -
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
Do PART 7:--CONDITION 2:
CLOSE ACCESS.STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE THE
LATEST PRODUC-
TION CONFIGURA-
TION.
Do PART 1:
GET ACCESS.
-Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
(a)
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 5.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 30.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
(a) Boeing recommends that the inspections in Compliance Table 4 are done at the same time as the replace-
ment of the inboard foreflap inboard link assembly, outboard fitting assembly, and center toggle roller.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
45 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 46

Group 7:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 1:-ACTION 1:All airplanes.
GET ACCESS.Do a replacement of the in-
board foreflap inboard link
assembly, outboard fitting
assembly, and center toggle
roller.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 6.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 31.
Do PART 3:Left side center toggle roller:
PREPARATION.FIGURE 9 and FIGURE 10.
Do PART 4:
RESTORATION.
Do PART 3:Right side center toggle roller:
PREPARATION.FIGURE 34 and FIGURE 35.
Do PART 4:
RESTORATION.
Do PART 2:-ACTION 2 :
PART NUMBER
CONFIGURATION
IDENTIFICATION.
Do a general visual inspec-
tion of the inboard foreflap
assembly stop, stop attach-
ment bolts, stop lug attach-
ment bolts, and rollers in the
midflap to identify the parts
production configuration.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
46 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 47

Group 7:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Number 3 flap track stop and attach-
ment bolts:
CONDITION 1 (ACTION 1):
Do a replacement of any af-
fected inboard foreflap assem-
bly part.
CONDITION 1:
STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE NOT
THE LATEST PRO-
DUCTION CONFIGU-
RATION.
FIGURE 13 and FIGURE 14.
-Number 4 flap track stop and attach-
ment bolts:
FIGURE 15 and FIGURE 18.
-Number 5 flap track stop and attach-
ment bolts:
FIGURE 40 and FIGURE 43.
-Number 6 flap track stop and attach-
ment bolts:
FIGURE 38 and FIGURE 39.
-Left side stop lug attachment bolts:
FIGURE 19 and FIGURE 20.
-Right side stop lug attachment bolts:
FIGURE 44 and FIGURE 45.
-Left side flap track dead weight
rollers (split roller bushings):
FIGURE 21 and FIGURE 22.
-Right side flap track dead weight
rollers (split roller bushings):
FIGURE 46 and FIGURE 47.
Do PART 7:--
CLOSE ACCESS.
Do PART 1:-CONDITION 1 (ACTION 2):
GET ACCESS.Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
(a) FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 6.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 31.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
47 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 48

Group 7:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Left side center toggle roller: -
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
Do PART 7:--CONDITION 2:
CLOSE ACCESS.STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE THE
LATEST PRODUC-
TION CONFIGURA-
TION.
Do PART 1:
GET ACCESS.
-Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
(a)
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 6.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 31.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
(a) Boeing recommends that the inspections in Compliance Table 4 are done at the same time as the replace-
ment of the inboard foreflap inboard link assembly, outboard fitting assembly, and center toggle roller.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
48 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 49

Group 8:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 1:-ACTION 1:All airplanes.
GET ACCESS.Do a replacement of the in-
board foreflap inboard link
assembly, outboard fitting
assembly, and center toggle
roller.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 6.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 31.
Do PART 3:Left side center toggle roller:
PREPARATION.FIGURE 9 and FIGURE 10.
Do PART 4:
RESTORATION.
Do PART 3:Right side center toggle roller:
PREPARATION.FIGURE 34 and FIGURE 35.
Do PART 4:
RESTORATION.
Do PART 2:-ACTION 2 :
PART NUMBER
CONFIGURATION
IDENTIFICATION.
Do a general visual inspec-
tion of the inboard foreflap
assembly stop, stop attach-
ment bolts, stop lug attach-
ment bolts, and rollers in the
midflap to identify the parts
production configuration.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
49 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 50

Group 8:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Number 3 flap track stop and attach-
ment bolts:
CONDITION 1 (ACTION 1):
Do a replacement of any af-
fected inboard foreflap assem-
bly part.
CONDITION 1:
STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE NOT
THE LATEST PRO-
DUCTION CONFIGU-
RATION.
FIGURE 13 and FIGURE 14.
-Number 4 flap track stop and attach-
ment bolts:
FIGURE 48 and FIGURE 49.
-Number 5 flap track stop and attach-
ment bolts:
FIGURE 50 and FIGURE 51.
-Number 6 flap track stop and attach-
ment bolts:
FIGURE 38 and FIGURE 39.
-Left side stop lug attachment bolts:
FIGURE 19 and FIGURE 20.
-Right side stop lug attachment bolts:
FIGURE 44 and FIGURE 45.
-Left side flap track dead weight
rollers (split roller bushings):
FIGURE 21 and FIGURE 22.
-Right side flap track dead weight
rollers (split roller bushings):
FIGURE 46 and FIGURE 47.
Do PART 7:--
CLOSE ACCESS.
Do PART 1:-CONDITION 1 (ACTION 2):
GET ACCESS.Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
(a) FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 6.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 31.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
50 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 51

Group 8:
Table 1: Left and Right Side Inboard Foreflap Assembly Inspection and Replacement
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Left side center toggle roller: -
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
Do PART 7:--CONDITION 2:
CLOSE ACCESS.STOP, STOP AT-
TACHMENT BOLTS,
STOP LUG ATTACH-
MENT BOLTS, OR
ROLLERS IN THE
MIDFLAP ARE THE
LATEST PRODUC-
TION CONFIGURA-
TION.
Do PART 1:
GET ACCESS.
-Repeat the replacement of
the inboard foreflap inboard
link assembly, outboard fitting
assembly, and center toggle
roller.
(a)
-Left side inboard link assembly:
FIGURE 1 and FIGURE 2.
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assembly:
FIGURE 3 and FIGURE 6.
-Right side outboard fitting assembly:
FIGURE 28 and FIGURE 31.
-Left side center toggle roller:
FIGURE 9 and FIGURE 10.
-Right side center toggle roller:
FIGURE 34 and FIGURE 35.
(a) Boeing recommends that the inspections in Compliance Table 4 are done at the same time as the replace-
ment of the inboard foreflap inboard link assembly, outboard fitting assembly, and center toggle roller.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
51 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 52

Group 1:
Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 3:-Do a detailed inspection of the
sequence carriage for broken,
binding, loose or missing
rollers; outboard fitting assem-
bly and inboard link assembly
for any crack or bearing migra-
tion; stop for any crack; stop
lug and stop for any loose or
missing attachment bolts.
All airplanes.
PREPARATION.
-Left side:
FIGURE 23.
-Right side:
FIGURE 52.
CMM 27-51-85.Left side center toggle roller:CONDITION 3 (ACTION 1):CONDITION 3:
FIGURE 9 and FIGURE 10.ANY BROKEN, BIND-
ING, LOOSE OR MISS-
ING ROLLER FOUND.
(a)
Do a replacement or installa-
tion of any affected roller. -Right side center toggle roller:
FIGURE 34 and FIGURE 35.
-Left side:CONDITION 3 (ACTION 2):
FIGURE 55.Do the lubrication of the out-
board fitting assembly.
(b) -Right side:FIGURE 56.
-Left side:CONDITION 3 (ACTION 3):
FIGURE 57.Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease. -Right side:FIGURE 58.(b)
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
52 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 53

Group 1:
Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Left side inboard link assembly:CONDITION 4 (ACTION 1):CONDITION 4:
FIGURE 1 and FIGURE 2.ANY CRACK OR
BEARING MIGRATION
FOUND IN THE OUT-
BOARD FITTING AS-
SEMBLY OR INBOARD
LINK ASSEMBLY. (a)
Do a replacement of any affect-
ed inboard link assembly or
outboard fitting assembly of
the inboard foreflap.
(c)
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assem-
bly:
FIGURE 3 and FIGURE 4.
-Right side outboard fitting assem-
bly:
FIGURE 28 and FIGURE 29.
-Left side:CONDITION 4 (ACTION 2):
FIGURE 55.Do the lubrication of the out-
board fitting assembly.
(b) -Right side:FIGURE 56.
-Left side:CONDITION 4 (ACTION 3):
FIGURE 57.Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease. -Right side:FIGURE 58.(b)
-Left side stop lug attachment
bolts:
CONDITION 5 (ACTION 1):
Do a replacement of the in-
board foreflap assembly affect-
ed stop lug attachment bolts.
CONDITION 5:
ANY LOOSE OR MISS-
ING STOP LUG AT-
TACHMENT BOLTS
FOUND. (a)
FIGURE 19 and FIGURE 20.
-Right side stop lug attachment
bolts:
FIGURE 44 and FIGURE 45.
-Left side:CONDITION 5 (ACTION 2):
FIGURE 55.Do the lubrication of the out-
board fitting assembly.
(b) -Right side:FIGURE 56.
-Left side:CONDITION 5 (ACTION 3):
FIGURE 57.Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease. -Right side:FIGURE 58.(b)
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
53 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 54

Group 1:
Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Number 3 flap track stop and at-
tachment bolts:
CONDITION 6 (ACTION 1):
Do a replacement of any affect-
ed stop or attachment bolts.
CONDITION 6:
ANY CRACK FOUND
ON THE STOP, OR
ANY LOOSE OR MISS-
ING STOP ATTACH-
MENT BOLTS. (a)
Group 1, Configuration 1:
FIGURE 13 and FIGURE 14.
Group 1, Configuration 2:
FIGURE 11 and FIGURE 12.
-Number 4 flap track stop and at-
tachment bolts:
Group 1, Configuration 1:
FIGURE 15 and FIGURE 18.
Group 1, Configuration 2:
FIGURE 11 and FIGURE 16.
-Number 5 flap track stop and at-
tachment bolts:
Group 1, Configuration 1:
FIGURE 40 and FIGURE 43.
Group 1, Configuration 2:
FIGURE 36 and FIGURE 41.
-Number 6 flap track stop and at-
tachment bolts:
Group 1, Configuration 1:
FIGURE 38 and FIGURE 39.
Group 1, Configuration 2:
FIGURE 36 and FIGURE 37.
-Left side:CONDITION 6 (ACTION 2):
FIGURE 55.Do the lubrication of the out-
board fitting assembly.
(b) -Right side:FIGURE 56.
-Left side:CONDITION 6 (ACTION 3):
FIGURE 57.Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease. -Right side:FIGURE 58.(b)
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
54 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 55

Group 1:
Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Left side:CONDITION 7 (ACTION 1):CONDITION 7:
FIGURE 56.NO BROKEN, BINDING,
LOOSE OR MISSING
ROLLER; NO CRACK
OR BEARING MIGRA-
TION; NO LOOSE OR
MISSING ATTACH-
MENT BOLTS FOUND.
Do the lubrication of the out-
board fitting assembly.
(b) -Right side:FIGURE 56.
-Left side:
FIGURE 57.
CONDITION 7 (ACTION 2):
Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease. -Right side:FIGURE 58.(b)
Do PART 4:--CONDITION 8:
RESTORATION.ANY GREASE FOUND
EXUDING FROM THE
OUTBOARD FITTING
ASSEMBLY.
Do PART 3:
PREPARATION.
Left side:
FIGURE 23.
Repeat the detailed inspection
of the sequence carriage for
broken, binding, loose or
missing rollers; outboard fitting
assembly and inboard link as-
sembly for any crack or bear-
ing migration; stop for any
crack; stop lug and stop for
any loose or missing attach-
ment bolts.
-Right side:
FIGURE 52.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
55 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 56

Group 1:
Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Left side outboard fitting assem-
bly:
CONDITION 9 (ACTION 1):
Do a replacement of the out-
board fitting assembly of the
inboard foreflap.
CONDITION 9:
NO GREASE FOUND
EXUDING FROM THE
OUTBOARD FITTING
ASSEMBLY.
FIGURE 3 and FIGURE 4.
-Right side outboard fitting assem-
bly:
FIGURE 28 and FIGURE 29.
Do PART 4:--
RESTORATION.
Do PART 3:Left side:CONDITION 9 (ACTION 2):
PREPARATION.FIGURE 23.Repeat the detailed inspection
of the sequence carriage for
broken, binding, loose or
missing rollers; outboard fitting
assembly and inboard link as-
sembly for any crack or bear-
ing migration; stop for any
crack; stop lug and stop for
any loose or missing attach-
ment bolts.
-Right side:
FIGURE 52.
(a) More than one condition can be applicable to each airplane.
(b) If more than one condition is found it is only necessary to do the lubrication and general visual inspection
of the outboard fitting assembly once.
(c) If the outboard fitting assembly was replaced it is only necessary to do the lubrication of the outboard fitting
assembly once.
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
56 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 57

Group 2:
Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
Do PART 3:-Do a detailed inspection of the
sequence carriage for broken,
binding, loose or missing
rollers; outboard fitting assem-
bly and inboard link assembly
for any crack or bearing migra-
tion; stop for any crack; stop
lug and stop for any loose or
missing attachment bolts.
All airplanes.
PREPARATION.
-Left side:
FIGURE 23.
-Right side:
FIGURE 52.
CMM 27-51-85.Left side center toggle roller:CONDITION 3 (ACTION 1):CONDITION 3:
FIGURE 9 and FIGURE 10.ANY BROKEN, BIND-
ING, LOOSE OR MISS-
ING ROLLER FOUND.
(a)
Do a replacement or installa-
tion of any affected roller. -Right side center toggle roller:
FIGURE 34 and FIGURE 35.
-Left side:CONDITION 3 (ACTION 2):
FIGURE 55.Do the lubrication of the out-
board fitting assembly.
(b) -Right side:FIGURE 56.
-Left side:CONDITION 3 (ACTION 3):
FIGURE 57.Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease. -Right side:FIGURE 58.(b)
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
57 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 58

Group 2:
Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Left side inboard link assembly:CONDITION 4 (ACTION 1):CONDITION 4:
FIGURE 1 and FIGURE 2.ANY CRACK OR
BEARING MIGRATION
FOUND IN THE OUT-
BOARD FITTING AS-
SEMBLY OR INBOARD
LINK ASSEMBLY. (a)
Do a replacement of any affect-
ed inboard link assembly or
outboard fitting assembly of
the inboard foreflap.
(c)
-Right side inboard link assembly:
FIGURE 26 and FIGURE 27.
-Left side outboard fitting assem-
bly:
Group 2, Configuration 1-2:
FIGURE 3 and FIGURE 5.
Group 2, Configuration 3-4:
FIGURE 7 and FIGURE 8.
-Right side outboard fitting assem-
bly:
Group 2, Configuration 1-2:
FIGURE 28 and FIGURE 30.
Group 2, Configuration 3-4:
FIGURE 32 and FIGURE 33.
-Left side:CONDITION 4 (ACTION 2):
FIGURE 55.Do the lubrication of the out-
board fitting assembly.
(b) -Right side:FIGURE 56.
-Left side:CONDITION 4 (ACTION 3):
FIGURE 57.Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease. -Right side:FIGURE 58.(b)
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
58 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 59

Group 2:
Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Left side stop lug attachment
bolts:
CONDITION 5 (ACTION 1):
Do a replacement of the in-
board foreflap assembly affect-
ed stop lug attachment bolts.
CONDITION 5:
ANY LOOSE OR MISS-
ING STOP LUG AT-
TACHMENT BOLTS
FOUND. (a)
FIGURE 19 and FIGURE 20.
-Right side stop lug attachment
bolts:
FIGURE 44 and FIGURE 45.
-Left side:CONDITION 5 (ACTION 2):
FIGURE 55.Do the lubrication of the out-
board fitting assembly.
(b) -Right side:FIGURE 56.
-Left side:CONDITION 5 (ACTION 3):
FIGURE 57.Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease. -Right side:FIGURE 58.(b)
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
59 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

### Page 60

Group 2:
Table 2: Left and Right Side Inboard Foreflap Assembly Sequence Carriage Rollers, Foreflap Attachment
Fittings, and Flap Track Inspection
Refer to the listed
procedures in SB
747-57A2367
Original Issue or
later approved re-
visions as an ac-
cepted procedure
Method of ComplianceActionCondition
-Number 3 flap track stop and at-
tachment bolts:
CONDITION 6 (ACTION 1):
Do a replacement of any affect-
ed stop or attachment bolts.
CONDITION 6:
ANY CRACK FOUND
ON THE STOP, OR
ANY LOOSE OR MISS-
ING STOP ATTACH-
MENT BOLTS. (a)
Group 2, Configuration 1, 3:
FIGURE 13 and FIGURE 14.
Group 2, Configuration 2, 4:
FIGURE 11 and FIGURE 12.
-Number 4 flap track stop and at-
tachment bolts:
Group 2, Configuration 1, 3:
FIGURE 15 and FIGURE 18.
Group 2, Configuration 2, 4:
FIGURE 11 and FIGURE 16.
-Number 5 flap track stop and at-
tachment bolts:
Group 2, Configuration 1, 3:
FIGURE 40 and FIGURE 43.
Group 2, Configuration 2, 4:
FIGURE 36 and FIGURE 41.
-Number 6 flap track stop and at-
tachment bolts:
Group 2, Configuration 1, 3:
FIGURE 38 and FIGURE 39.
Group 2, Configuration 2, 4:
FIGURE 36 and FIGURE 37.
-Left side:CONDITION 6 (ACTION 2):
FIGURE 55.Do the lubrication of the out-
board fitting assembly.
(b) -Right side:FIGURE 56.
-Left side:CONDITION 6 (ACTION 3):
FIGURE 57.Do a general visual inspection
of the outboard fitting assem-
bly for any exuding grease. -Right side:FIGURE 58.(b)
Export Controlled ECCN: 9E991
Copyright © Unpublished
Work - See page 1 for details.
Original Issue: November 15, 2019
747-57A2367 RB
60 of 288
REQUIREMENTS BULLETIN 747-57A2367
ALERTALERT

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