# Boeing Service Bulletin DC9-28-212: Revision 1

- Rights: © The Boeing Company. Filed by the FAA in regulations.gov docket FAA-2008-0934; AD 2010-25-04 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Boeing Service Bulletin DC9-28-212](https://openairdocs.org/service-documents/boeing/dc9-28-212.md)
- Title as filed: U.S. DOT/FAA - Service Bulletin (4)
- Pages: 48
- PDF: https://openairdocs.org/files/sha256/3a/a8/3aa873912e3588126fea2f61441d5d8313823c06268ed9d2eeb5ee1900031f63
- Page: https://openairdocs.org/service-documents/boeing/dc9-28-212/file/3aa873912e35

## Text

Some pages are OCR from a scan. OCR can misread letters and numbers. Each page's text from the PDF; open the PDF at a page with #page=N.

### Page 1

McDonnell DouglasCommercial 
Airplanes
DC9
Service Bulletin
Number: DC9-28-212
Original Issue: February 22, 2008
Revision 1: June 16, 2009
ATA System: 2822
SUBJECT: FUEL - Pump Fuel Boost - Change or Replace Fuel Boost Pumps
Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15
CFR 730-774). An export license may be required before it is used for development, production or use by foreign
persons from specific countries. The controller of this data has the individual responsibility to abide by all export
laws.
9E991ECCN:
BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET
Copyright © 2008 The Boeing Company
Unpublished Work - All Rights Reserved
Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable
subject matter. Boeing also claims copyright in this document as a compilation and/or collective work.
This document includes proprietary information owned by The Boeing Company and/or one or more third parties.
Treatment of the document and the information it contains is governed by contract with Boeing. For more
information, contact The Boeing Company, P .O. Box 3707, Seattle, Washington 98124.
Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner,
BBJ, DC-8, DC-9, DC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, Poseidon and the Boeing livery are all
trademarks owned by The Boeing Company; and no trademark license is granted in connection with this document
unless provided in writing by Boeing.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: February 22, 2008
DC9-28-212Revision 1: June 16, 2009
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2.0

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### Page 3

Table of Contents
Revision Transmittal Sheet ............................................ 5
Summary ..................................................... 7
1. PLANNING INFORMATION ........................................ 1 1
A. Effectivity ............................................... 1 1
1. Airplanes ............................................ 1 1
2. Spares Affected ........................................ 3 1
B. Concurrent Requirements ...................................... 3 2
C. Reason ................................................ 3 2
D. Description .............................................. 3 2
E. Compliance .............................................. 3 5
F . Approval ............................................... 3 5
G. Manpower .............................................. 3 5
H. Weight and Balance Changes .................................... 3 7
I. Electrical Load Data ......................................... 3 7
J. References .............................................. 3 7
1. Existing Data: .......................................... 3 7
2. Data supplied with this Service Bulletin: ........................... 3 7
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 3 7
K. Publications Affected ......................................... 3 8
L. Interchangeability and Intermixability of Parts ........................... 3 8
2. MATERIAL INFORMATION ........................................ 3 9
A. Material - Price and Availability ................................... 3 9
B. Industry Support Information .................................... 3 9
C. Parts Necessary For Each Airplane ................................. 3 9
1. Kits/Parts: ............................................ 3 9
2. Parts and Materials Supplied by the Operator: ........................ 3 9
3. Parts Modified and Reidentified: ................................ 4 0
4. Parts Removed and Not Replaced: .............................. 4 0
D. Parts Necessary to Change Spares ................................. 4 0
E. Special Tooling - Price and Availability ............................... 4 0
F . Special Tooling Necessary to do this Service Bulletin ....................... 4 0
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 4 1
A. GENERAL INFORMATION ..................................... 4 1
B. WORK INSTRUCTIONS ....................................... 4 1
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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### Page 5

McDonnell DouglasCommercial 
Airplanes
DC9
Service Bulletin
Revision Transmittal SheetNumber: DC9-28-212Original Issue: February 22, 2008
Revision 1: June 16, 2009
ATA System: 2822
SUBJECT: FUEL - Pump Fuel Boost - Change or Replace Fuel Boost Pumps
This revision includes all pages of the service bulletin.
COMPLIANCE INFORMATION RELATED TO THIS REVISION
Federal Aviation Administration (FAA) Notice of Proposed Rule Making 2008-NM-113-AD, is related to this
service bulletin.
No more work is necessary on airplanes changed in accordance with the original issue of this service bulletin.
REASON FOR REVISION
This revision is sent to change the Revision level of Argo-Tech Service Bulletin 398000-28-2 to Revision 1.
These sections were changed:
1. In Paragraph 1.B., Concurrent Requirements, changed Argo-Tech Service Bulletin Revision level.
2. In Paragraph 1.D., Description, added Affected Maintenance Zones Table.
3. In Paragraph 1.E., Compliance, added Notice of Proposed Rule Making (NPRM) statements.
4. In Paragraph 1.F ., Approval, added Revision 1.
5. In Paragraph 1.J.1., Existing Data, changed Argo-Tech Bulletin 398000-28-2 Revision level and added FAA
Notice of Proposed Rule Making.
6. In Paragraph 1.K., Publication Affected, removed Special Compliance Item Report Revision level.
7. In Paragraph 3.B., Work Instructions, changed Argo-Tech Service Bulletin 398000-28-2 Revision level.
Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity, to show the location
of important changes.
Pages with no vertical lines have no important changes.
REVISION HISTORY
February 22, 2008Original Issue:
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: February 22, 2008
DC9-28-212Revision 1: June 16, 2009
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### Page 6

June 16, 2009Revision 1:
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: February 22, 2008
DC9-28-212Revision 1: June 16, 2009
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### Page 7

McDonnell DouglasCommercial 
Airplanes
DC9
Service Bulletin
SummaryNumber: DC9-28-212Original Issue: February 22, 2008
Revision 1: June 16, 2009
ATA System: 2822
SUBJECT: FUEL - Pump Fuel Boost - Change or Replace Fuel Boost Pumps
CONCURRENT REQUIREMENTS
Refer to Paragraph 1.B., Concurrent Requirements.
BACKGROUND
The Special Federal Aviation Regulation (SFAR 88) safety review has determined the need to protect the fuel
boost pump stator lead wires from being able to contact the pump rotor/shaft assembly. Lead wire contact and
the resulting chafing may result in an ignition source (energized rotor assembly) being produced in the fuel boost
pump inlet that could propagate into the fuel tank when the fuel boost pump inlet is not fully covered by fuel.
Replacement of the fuel boost pump will minimize the risk of a potential arc/spark condition that may occur within
the airplane's fuel tanks at critical fuel boost pumps in the center wing, forward and aft auxiliary fuel tanks. If not
corrected, there is a potential that an arc/spark condition could occur within the fuel boost pumps and propagate
into the fuel tank.
This service bulletin is the result of the safety assessments conducted by Boeing under SFAR 88, "Fuel Tank
System Fault Tolerance Evaluation Requirements".
ACTION
Refer to Paragraph 1.D., Description.
EFFECTIVITY
All MD-80 and DC-9-31, DC-9-32, DC-9-32(VC9C), DC-9-32F , DC-9-32F(C-9A), DC-9-32F(C-9B), DC-9-33F ,
DC-9-34, DC-9-34F , DC-9-41 and DC-9-51 Airplanes. Refer to Paragraph 1.A.1., Airplanes for affected airplanes.
COMPLIANCE
Federal Aviation Administration (FAA) Notice of Proposed Rule Making 2008-NM-113-AD, is related to this
service bulletin.
Boeing recommends accomplishment of this service bulletin within 5 years after original issue date of service
bulletin.
INDUSTRY SUPPORT INFORMATION
Boeing warranty remedies are not available for the configuration changes given in this service bulletin.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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### Page 8

MANPOWER
Refer to Paragraph 1.G., Manpower.
MATERIAL INFORMATION
Refer to Paragraph 2.A., Material - Price and Availability.
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### Page 9 (OCR)

BOEING SERVICE BULLETIN DC9-28-212
MD-80 AND DC-9
(FORWARD AUXILIARY TANK)
MD-80
(CENTER WING TANK)
MD-80 AND DC-9
(AFT AUXILIARY TANK)
CHANGE OR REPLACE FUEL BOOST PUMPS  1399743
Original Issue: February 22, 2008
Revision 1: June 16, 2009  DC9-28-212
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.  9 of 48

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BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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### Page 11

McDonnell DouglasCommercial 
Airplanes
DC9
Service Bulletin
Number: DC9-28-212
Original Issue: February 22, 2008
Revision 1: June 16, 2009
ATA System: 2822
SUBJECT: FUEL - Pump Fuel Boost - Change or Replace Fuel Boost Pumps
1.    PLANNING INFORMATION
A. Effectivity
1. Airplanes
This service bulletin is for the airplanes shown below.
DESCRIPTIONCONFIGURATIONGROUP
Change or replace fuel boost pumps in the center wing tank.-1
Applicable to MD-80 airplanes with fuel boost pump 398000-1.1
Applicable to MD-80 airplanes with fuel boost pump 65-5093-4.2
Change or replace fuel boost pumps in the center wing and aft
auxiliary tanks.
-2
Applicable to MD-80 airplanes with fuel boost pump 398000-1.1
Applicable to MD-80 airplanes with fuel boost pump 65-5093-4.2
Change or replace fuel boost pumps in the center wing, forward and
aft auxiliary tanks.
-3
Applicable to MD-80 airplanes with fuel boost pump 398000-1.1
Applicable to MD-80 airplanes with fuel boost pump 65-5093-4.2
Change or replace single fuel boost pump in the forward auxiliary
tank.
-4
Applicable to DC-9 airplanes with fuel boost pump 398000-1.1
Applicable to DC-9 airplanes with fuel boost pump 65-5093-4.2
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: February 22, 2008
DC9-28-212Revision 1: June 16, 2009
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### Page 12

DESCRIPTIONCONFIGURATIONGROUP
Change or replace single fuel boost pump in the forward auxiliary
tank and dual fuel boost pumps on the aft auxiliary tank.
-5
Applicable to DC-9 airplanes with fuel boost pump 398000-1.1
Applicable to DC-9 airplanes with fuel boost pump 65-5093-4.2
Change or replace dual fuel boost pumps in the forward auxiliary
tank.
-6
Applicable to DC-9 airplanes with fuel boost pump 398000-1.1
Applicable to DC-9 airplanes with fuel boost pump 65-5093-4.2
Change or replace dual fuel boost pumps in the forward and aft
auxiliary tanks.
-7
Applicable to DC-9 airplanes with fuel boost pump 398000-1.1
Applicable to DC-9 airplanes with fuel boost pump 65-5093-4.2
Change or replace dual fuel boost pumps in the aft auxiliary tank.-8
Applicable to DC-9 airplanes with fuel boost pump 398000-1.1
Applicable to DC-9 airplanes with fuel boost pump 65-5093-4.2
Airplane Models:
DC-9-31, DC-9-32, DC-9-32(VC-9C), DC-9-32F , DC-9-32F(C-9A), DC-9-32F(C-9B), DC-9-33F ,
DC-9-34, DC-9-34F , DC-9-41, DC-9-51, DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83),
DC-9-87 (MD-87), MD-88
GroupFuselage Num-
ber
11000 - 1006
11011 - 1013
11015 - 1016
11018 - 1020
11025
11028
11031 - 1032
11034 - 1035
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GroupFuselage Num-
ber
11043
11045
11047
11049
11051
11053
11055
11057
11059 - 1060
11063 - 1071
11073
11075 - 1080
71081
11082 - 1083
71084
11085
11087 - 1093
11095 - 1110
11112 - 1145
11147 - 1168
31169
11170 - 1172
11174 - 1176
31177
11178 - 1203
11205 - 1206
11208
31209
11210 - 1223
11225 - 1234
31235
11236 - 1260
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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GroupFuselage Num-
ber
11262 - 1269
31270
11271
31272
11273 - 1274
31275
11276 - 1278
31279
11280 - 1284
31285 - 1286
11287 - 1292
11294 - 1304
31305
11306 - 1312
31313
11314
11316 - 1319
4132
11320 - 1325
11327 - 1329
4133
11330
31331 - 1333
11334 - 1339
31340
11341
31342
11344 - 1349
4135
11350 - 1353
31354
11355
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GroupFuselage Num-
ber
31356 - 1358
11359 - 1366
31367
11368 - 1369
31370 - 1375
11376 - 1379
31380
11381
31382 - 1383
11384
31385 - 1393
11394 - 1395
31396 - 1398
11399 - 1405
31406
11407 - 1411
21412
31413 - 1415
11416 - 1420
31421 - 1423
21424
11425 - 1428
31429
11430 - 1434
31435 - 1438
11439
4144
11440 - 1449
4145
11450 - 1451
31453 - 1455
11456
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GroupFuselage Num-
ber
21457
11458
31459
11460
31461
11462
31463 - 1465
11466 - 1471
21472
11473 - 1482
31483 - 1484
11485 - 1486
31487
11488 - 1493
31494 - 1495
11496 - 1497
31498 - 1499
11500 - 1501
31502 - 1503
11505 - 1537
31538 - 1540
21541
31542
11543 - 1546
31547
11548 - 1553
31554
11555 - 1558
31559
11560
31561
11562 - 1572
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### Page 17

GroupFuselage Num-
ber
31573
11574 - 1577
31578
11579
31580 - 1583
11584
31585
11586
31587
11588 - 1589
4159
11590
31591 - 1592
11593 - 1594
31595 - 1596
11597 - 1600
31601
11602
31603
11604 - 1605
31606
11607 - 1610
31611
11612 - 1613
31614
11615 - 1616
21617
11618 - 1619
31620
11621 - 1622
31623 - 1624
11625
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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GroupFuselage Num-
ber
31626 - 1628
11629
31630 - 1632
11633 - 1635
31636 - 1637
11638 - 1641
31642 - 1645
11646 - 1654
31655 - 1657
11658 - 1667
31668
11669
4167
11670 - 1674
31675
11676 - 1679
31680
11681 - 1686
31687
11688 - 1701
11703
31704
11705 - 1714
31715 - 1716
11717
31718
11719
4172
31720
11721 - 1727
31728
11729 - 1731
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### Page 19

GroupFuselage Num-
ber
31732
11733 - 1735
31736
11737
31738
11739
4174
31740 - 1741
11742 - 1759
4176
11760 - 1763
31764
11765 - 1771
31773
11774 - 1775
31776 - 1778
11779 - 1783
31784 - 1785
11786 - 1787
11789 - 1792
31793 - 1794
11795 - 1817
31818
11819 - 1828
31829
11830 - 1835
31836 - 1838
11839 - 1841
31842 - 1843
11845 - 1846
31847
11848 - 1849
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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### Page 20

GroupFuselage Num-
ber
31850 - 1851
11852 - 1853
31854
11855 - 1867
31868
11869
4187
11870 - 1871
31872
11873 - 1879
4188
11880 - 1885
31886 - 1887
11888 - 1898
31899
11900 - 1905
31906
11907 - 1908
31909 - 1910
11911 - 1912
31913
11914
31915
11917 - 1918
31919 - 1920
11921 - 1922
31923
11924
11926 - 1931
31932 - 1935
11936 - 1950
31951
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GroupFuselage Num-
ber
11952 - 1953
31954
11955
31956
11957 - 1965
31966
11967
31968
11969 - 1970
31971
11972 - 1979
4198
11980 - 1988
31989
11990
31991
11992 - 1994
31996
11997 - 1999
4200
32000
12001 - 2003
32004
12005
32006
12007
12009 - 2010
32011 - 2013
12014 - 2016
32019 - 2021
12022 - 2025
32026
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GroupFuselage Num-
ber
12027 - 2029
12031 - 2034
12036 - 2041
32042
12043
32044
12045 - 2046
32047
12048 - 2049
4205
12050 - 2051
32052
12053 - 2055
32056 - 2057
12058 - 2060
32061
12062
32063
12064
32065 - 2068
12069
32071
12072 - 2079
4208
12080 - 2087
32088 - 2093
32101 - 2102
12103 - 2114
12116
32118 - 2119
32121
12124
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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### Page 23

GroupFuselage Num-
ber
12127
4213
32130
32132
32134
12135
32137
12139
4214
12145
32148
32151
12152
32155
32167
4217
32174
32176
12178
4218
32180
12183
32185
32187
12189
32192
32196
32199
4220
32201
12204
32206
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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### Page 24

GroupFuselage Num-
ber
32208
4221
32214
32218
32234
32239
32241
32244
32247
32249
32252
32254
32264 - 2287
4229 - 230
4235 - 236
4240
4246
4251 - 252
4261
4263 - 264
4273
4278 - 280
7281
4286
4298
4302
7304
4308
4311 - 312
4314
4319
4321
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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### Page 25

GroupFuselage Num-
ber
4323 - 324
4335
4337
4339
7340
4343
4347
4353 - 354
4359
4364
4367
4369
7377
4383 - 387
4394
7399
4402
4411
4413
7421
4423
4425
4427
7438
4445 - 447
7458
4459 - 460
5467
4468 - 469
4471
4476
4480
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### Page 26

GroupFuselage Num-
ber
4483
4485
5497
4514
4517
4519
6527
7530
4538
7539
4543
7548
4550
7552
4555
4557
4559
4562
4564
4566
4568 - 569
4572 - 573
4575 - 576
4584
4593
4601
4604 - 605
4607
4610
4616
4619
4621
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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GroupFuselage Num-
ber
6626 - 627
4630
4632
4637 - 638
4643
6644
4645 - 646
7647
7650
7653
4654 - 655
7656
4658
7659
4661
7662
4664
7665
7668
4669
7670
4671
4673
4675
4677 - 679
4683
7686
6687 - 689
7692
6695
7696
7698
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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GroupFuselage Num-
ber
7700
6701
7702
7704
7707
4712
4714 - 715
4719
4724
4726 - 728
4732
4736
4740
4742 - 743
4747
4750
5751
4754
5757
5759
4761
5763
7765
4768
7769
4772
7774
4777 - 779
5780
4781
5783
7784
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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GroupFuselage Num-
ber
7786
5787
4788
4793
7795
4796
5798
7801
5805 - 808
7809
5810
7811
4813 - 814
5817
4818
5819
5821
4822
5823
4826
5827
4828
5829 - 830
4832 - 835
4837
6838
4841 - 842
7843
4845
4852 - 854
5857
5859
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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### Page 30

GroupFuselage Num-
ber
6860 - 864
4871
8872
5873
4874 - 877
4880 - 881
5883
4884
4887 - 889
5890 - 891
4892 - 895
5899
4900 - 901
5902
4904 - 905
4908
4912 - 915
4918
4923
1924
4926
6927
5929
4930
6931 - 932
7934
6935 - 937
1938
6939
1941
1944
6945
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GroupFuselage Num-
ber
1948
1950
1952 - 953
7954
4956
1957 - 958
4959
1962
1966 - 967
1969 - 971
1973
1978
5980
1981
7982
6984
1985 - 986
5987
1988
499
6990
1992
5993
1994 - 995
1997
1999
2. Spares Affected
Group 1-8, Configuration 1:
Examine your spares supply for the parts or components identified in Paragraph 2.D., Parts
Necessary to Change Spares. If any parts or components are found, refer to Paragraph 2.D. for
spares modification information.
Group 1-8, Configuration 2:
None.
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B. Concurrent Requirements
Group 1-8, Configuration 1:
The service bulletin listed below must be done at the same time as this service bulletin:
DescriptionService BulletinCompany
Change or replace fuel boost pump 398000-1
to 398000-2 configuration.
398000-28-2 Revision 1Argo-Tech
A copy may be obtained from:
Argo-Tech Corporation 23555 Euclid Avenue
Cleveland, Ohio 44117 USA
Phone: (216) 692-7151
Group 1-8, Configuration 2:
None.
C. Reason
The Special Federal Aviation Regulation (SFAR 88) safety review has determined the need to protect
the fuel boost pump stator lead wires from being able to contact the pump rotor/shaft assembly. Lead
wire contact and the resulting chafing may result in an ignition source (energized rotor assembly) being
produced in the fuel boost pump inlet that could propagate into the fuel tank when the fuel boost pump
inlet is not fully covered by fuel. Replacement of the fuel boost pump will minimize the risk of a potential
arc/spark condition that may occur within the airplane's fuel tanks at critical fuel boost pumps in the
center wing, forward and aft auxiliary fuel tanks. If not corrected, there is a potential that an arc/spark
condition could occur within the fuel boost pumps and propagate into the fuel tank.
This service bulletin is the result of the safety assessments conducted by Boeing under SFAR 88, "Fuel
Tank System Fault Tolerance Evaluation Requirements".
Revision 1 is sent to change the Revision level of Argo-Tech Service Bulletin 398000-28-2 to Revision
1.
D. Description
Group 1, Configuration 1:
This service bulletin provides instructions to change MD-80 fuel boost pumps in the center wing tank
in accordance with Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing Data or replace with
part number 398000-2.
Group 1, Configuration 2:
This service bulletin provides instructions to replace MD-80 fuel boost pumps in the center wing tank
with part number 398000-2.
Group 2, Configuration 1:
This service bulletin provides instructions to change MD-80 fuel boost pumps in the center wing and
aft auxiliary tanks in accordance with Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing
Data or replace with part number 398000-2.
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Group 2, Configuration 2:
This service bulletin provides instructions to replace MD-80 fuel boost pumps in the center wing and
aft auxiliary tanks with part number 398000-2.
Group 3, Configuration 1:
This service bulletin provides instructions to change MD-80 fuel boost pumps in the center wing tank,
forward and aft auxiliary tanks in accordance with Argo-Tech Service Bulletin listed in Paragraph 1.J.1.,
Existing Data or replace with part number 398000-2.
Group 3, Configuration 2:
This service bulletin provides instructions to replace MD-80 fuel boost pumps in the center wing, forward
and aft auxiliary tanks with part number 398000-2.
Group 4, Configuration 1:
This service bulletin provides instructions to change DC-9 fuel boost pump in the forward auxiliary tank
in accordance with Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing Data or replace with
part number 398000-2.
Group 4, Configuration 2:
This service bulletin provides instructions to replace DC-9 fuel boost pump in the forward auxiliary tank
with part number 398000-2.
Group 5, Configuration 1:
This service bulletin provides instructions to change DC-9 fuel boost pump in the forward auxiliary tank
and fuel boost pumps on the aft auxiliary tank in accordance with Argo-Tech Service Bulletin listed in
Paragraph 1.J.1., Existing Data or replace with part number 398000-2.
Group 5, Configuration 2:
This service bulletin provides instructions to replace DC-9 fuel boost pump in the forward auxiliary tank
and fuel boost pumps on the aft auxiliary tank with part number 398000-2.
Group 6, Configuration 1:
This service bulletin provides instructions to change DC-9 fuel boost pumps in the forward auxiliary
tank in accordance with Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing Data or replace
with part number 398000-2.
Group 6, Configuration 2:
This service bulletin provides instructions to replace DC-9 fuel boost pumps in the forward auxiliary
tank with part number 398000-2.
Group 7, Configuration 1:
This service bulletin provides instructions to change DC-9 fuel boost pumps in the forward and aft
auxiliary tanks in accordance with Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing Data
or replace with part number 398000-2.
Group 7, Configuration 2:
This service bulletin provides instructions to replace DC-9 fuel boost pumps in the forward and aft
auxiliary tanks with part number 398000-2.
Group 8, Configuration 1:
This service bulletin provides instructions to change DC-9 fuel boost pumps in the aft auxiliary tank in
accordance with Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing Data or replace with
part number 398000-2.
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Group 8, Configuration 2:
This service bulletin provides instructions to replace DC-9 fuel boost pumps in the aft auxiliary tank
with part number 398000-2.
Revision 1 - No more work is necessary on airplanes changed in accordance with the original issue of
this service bulletin.
The work in this service bulletin is done in the maintenance zone(s) given below.
Group 1:
Affected Maintenance Zones
ZoneModel
14DC-9-81 (MD-81), DC-9-82
(MD-82), DC-9-83 (MD-83), DC-
9-87 (MD-87), MD-88
Group 2:
Affected Maintenance Zones
ZoneModel
14, 57DC-9-87 (MD-87)
Group 3:
Affected Maintenance Zones
ZoneModel
14, 51, 57DC-9-82 (MD-82), DC-9-83
(MD-83), DC-9-87 (MD-87), MD-
88
Group 4:
Affected Maintenance Zones
ZoneModel
51DC-9-31, DC-9-32, DC-9-32F ,
DC-9-33F , DC-9-41, DC-9-51
Group 5:
Affected Maintenance Zones
ZoneModel
51, 57DC-9-33F , DC-9-34, DC-9-34F ,
DC-9-41, DC-9-51
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Group 6:
Affected Maintenance Zones
ZoneModel
51DC-9-32, DC-9-51
Group 7:
Affected Maintenance Zones
ZoneModel
51, 57DC-9-32, DC-9-32(VC-9C), DC-
9-32F , DC-9-32F(C-9A), DC-9-
32F(C-9B), DC-9-34
Group 8:
Affected Maintenance Zones
ZoneModel
57DC-9-34F
E. Compliance
Federal Aviation Administration (FAA) Notice of Proposed Rule Making 2008-NM-113-AD, is related
to this service bulletin.
Boeing recommends accomplishment of this service bulletin within 5 years after original issue date of
service bulletin.
F. Approval
The resultant modification described in Paragraph 1.D has been shown to comply with the applicable
Federal Aviation Regulations and Revision 1 is approved by the Manager, Los Angeles Aircraft
Certification Office, FAA Northwest Mountain Region.
G. Manpower
NOTE: The manpower required to change fuel boost pump in accordance with Argo-Tech Bulletin
listed in Paragraph 1.J.1., Existing Data are not included.
The table below shows an estimate of the task hours necessary to do this change for each airplane.
This estimate is for direct labor only, done by an experienced crew. Adjust the estimate with operator
task hour data if necessary. The estimate does not include lost time. These are some examples of lost
time:
— Time to adjust to the workplace
— Time to schedule the work
— Time to examine the work
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— Time to cure the materials
— Time to make the parts
— Time to find the tools.
Group 1, Configuration 1-2:
Elapsed HoursTask HoursNumber of PersonsTask
0.50.51Open Access
1.01.01Change or replace
0.50.51Close Access
1.01.01Functional Test
3.03.0TOTAL FOR EACH AIRPLANE
Group 2, Configuration 1-2; Group 7, Configuration 1-2:
Elapsed HoursTask HoursNumber of PersonsTask
1.01.01Open Access
2.02.01Change or replace
1.01.01Close Access
1.01.01Functional Test
5.05.0TOTAL FOR EACH AIRPLANE
Group 3, Configuration 1-2:
Elapsed HoursTask HoursNumber of PersonsTask
1.51.51Open Access
3.03.01Change or replace
1.51.51Close Access
1.01.01Functional Test
7.07.0TOTAL FOR EACH AIRPLANE
Group 4, Configuration 1-2:
Elapsed HoursTask HoursNumber of PersonsTask
1.01.01Open Access
0.50.51Change or replace
1.01.01Close Access
1.01.01Functional Test
3.53.5TOTAL FOR EACH AIRPLANE
Group 5, Configuration 1-2:
Elapsed HoursTask HoursNumber of PersonsTask
1.01.01Open Access
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Group 5, Configuration 1-2:
Elapsed HoursTask HoursNumber of PersonsTask
1.51.51Change or replace
1.01.01Close Access
1.01.01Functional Test
4.54.5TOTAL FOR EACH AIRPLANE
Group 6, Configuration 1-2; Group 8, Configuration 1-2:
Elapsed HoursTask HoursNumber of PersonsTask
1.01.01Open Access
1.01.01Change or replace
1.01.01Close Access
1.01.01Functional Test
4.04.0TOTAL FOR EACH AIRPLANE
H. Weight and Balance Changes
None.
I. Electrical Load Data
Not changed.
J. References
1. Existing Data:
a. Argo-Tech Service Bulletin 398000-28-2 Revision 1.
b. DC-9 Aircraft Maintenance Manual (AMM) 25-23-0, 28-20-18, 28-20-7, and 53-20-1.
c. Federal Aviation Administration, Special Federal Aviation Regulation (SFAR) 88.
d. FAA Notice of Proposed Rule Making 2008-NM-113-AD.
e. MD-80 Aircraft Maintenance Manual (AMM) 25-23-00, 28-20-07, 28-20-18, and 53-20-01.
2. Data supplied with this Service Bulletin:
None.
3. Installation Drawings Used in the Preparation of this Service Bulletin:
ChangeTitleDocument Number
NewReplacement Installation - Fuel PumpSR09280094
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This drawing was used to prepare this service bulletin. This drawing is not necessary to make the
specified changes, and are not supplied with this service bulletin.This drawing may not be applicable
to all airplane configurations or operators.
K. Publications Affected
Chapter-SectionPublication
28-20Illustrated Parts Catalog
MDC-92K9145 (CDCCL 28-2)Special Compliance Item Report
28-20-6Supplier Component Maintenance Manual
L. Interchangeability and Intermixability of Parts
The new fuel boost pump part number 398000-2 is the only part number that may be installed in the
center wing tank, forward and aft auxiliary tanks of the MD-80, and in the forward and aft auxiliary tanks
of the DC-9.
The new fuel boost pump part number 398000-2 may also be installed in all other tanks as an alternate
part number.
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2.    MATERIAL INFORMATION
A. Material - Price and Availability
Refer to Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing Data.
B. Industry Support Information
Boeing warranty remedies are not available for the configuration changes given in this service bulletin.
C. Parts Necessary For Each Airplane
1. Kits/Parts:
Group 1-8, Configuration 1:
Refer to Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing Data.
Group 1, 6, 8, Configuration 2:
Existing Part NumberNameQTYNew Part Number
65-5093-4Fuel Boost Pump2398000-2
Group 2, 7, Configuration 2:
Existing Part NumberNameQTYNew Part Number
65-5093-4Fuel Boost Pump4398000-2
Group 3, Configuration 2:
Existing Part NumberNameQTYNew Part Number
65-5093-4Fuel Boost Pump6398000-2
Group 4, Configuration 2:
Existing Part NumberNameQTYNew Part Number
65-5093-4Fuel Boost Pump1398000-2
Group 5, Configuration 2:
Existing Part NumberNameQTYNew Part Number
65-5093-4Fuel Boost Pump3398000-2
2. Parts and Materials Supplied by the Operator:
Group 1-8, Configuration 1:
Refer to Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing Data.
Group 1-8, Configuration 2:
None
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3. Parts Modified and Reidentified:
Group 1-8, Configuration 1:
Refer to Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing Data.
Group 1-8, Configuration 2:
None.
4. Parts Removed and Not Replaced:
Group 1-8, Configuration 1:
Refer to Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing Data.
Group 1-8, Configuration 2:
None.
D. Parts Necessary to Change Spares
Group 1-8, Configuration 1:
Refer to Argo-Tech Service Bulletin listed in Paragraph 1.J.1., Existing Data.
Group 1-8, Configuration 2:
None.
E. Special Tooling - Price and Availability
None.
F. Special Tooling Necessary to do this Service Bulletin
No special tools or equipment are necessary to do the change in this service bulletin. But, maintenance
and overhaul tools in the manuals given in Paragraph 1.J., References, can be necessary. Examine
operator tool supply to make sure all necessary tools are available.
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3.    ACCOMPLISHMENT INSTRUCTIONS
A. GENERAL INFORMATION
WARNING: IF ELECTRICAL POWER IS APPLIED TO THE AIRPLANE, MAKE SURE YOU OBEY
ALL PRECAUTIONS WHILE YOU DO WORK. IF YOU DO NOT OBEY THE
PRECAUTIONS, DEATH OR INJURY TO PERSONS, AND DAMAGE TO THE AIRPLANE
CAN OCCUR.
CAUTION: KEEP THE WORK AREA, WIRES AND ELECTRICAL BUNDLES CLEAN OF METAL
PARTICLES OR CONTAMINATION WHEN YOU USE TOOLS. UNWANTED MATERIAL,
METAL PARTICLES OR CONTAMINATION CAUGHT IN WIRE BUNDLES CAN CAUSE
DAMAGE TO THE BUNDLES. DAMAGED WIRE BUNDLES CAN CAUSE SPARKS OR
OTHER ELECTRICAL DAMAGE.
CAUTION: ELECTRICALL Y GROUND THE AIRPLANE. THIS WILL HELP TO PREVENT DAMAGE
TO THE AIRPLANE OR EQUIPMENT.
NOTE: 1. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for
definition of the acronyms.
2. Obey all of the warnings and cautions given in the specified manual sections.
3. These work instructions refer to procedures included in other Boeing documents.
When the words "refer to" are used and the operator has an accepted alternative
procedure, the accepted alternative procedure can be used. When the words "in
accordance with" are included in the instruction, the procedure in the Boeing document
must be used.
B. WORK INSTRUCTIONS
Group 1, Configuration 1:
1. Open access panel 1436C. Refer to MD-80 AMM 28-20-07.
2. Remove center wing tank fuel boost pumps in accordance with MD-80 AMM 28-20-07.
3. Change or replace center wing tank fuel boost pumps in accordance with Argo-Tech Service
Bulletin 398000-28-2 Revision 1.
4. Install center wing tank fuel boost pumps part number 398000-2 in accordance with MD-80 AMM
28-20-07.
5. Close access panel 1436C. Refer to MD-80 AMM 28-20-07.
6. Do an operational test on the center wing tank fuel boost pumps in accordance with MD-80 AMM
28-20-07.
7. Put the airplane back to a serviceable condition.
Group 1, Configuration 2:
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1. Open access panel 1436C. Refer to MD-80 AMM 28-20-07.
2. Replace center wing tank fuel boost pumps with part number 398000-2 in accordance with MD-80
AMM 28-20-07.
3. Close access panel 1436C. Refer to MD-80 AMM 28-20-07.
4. Do an operational test on the center wing tank fuel boost pumps in accordance with MD-80 AMM
28-20-07.
5. Put the airplane back to a serviceable condition.
Group 2, Configuration 1:
1. Open access panel 1436C. Refer to MD-80 AMM 28-20-07.
2. Remove/keep passenger seats as required for access to the aft auxiliary tank fuel boost pumps.
Refer to MD-80 AMM 25-23-00.
3. Remove/keep floor panels as required for access to the aft auxiliary tank fuel boost pumps. Refer
to MD-80 AMM 53-20-01.
4. Remove center wing tank fuel boost pumps in accordance with MD-80 AMM 28-20-07.
5. Remove aft auxiliary tank fuel boost pumps in accordance with MD-80 AMM 28-20-18.
6. Change or replace the fuel boost pumps in accordance with Argo-Tech Service Bulletin 398000-28-2
Revision 1.
7. Install center wing tank fuel boost pumps part number 398000-2 in accordance with MD-80 AMM
28-20-07.
8. Install aft auxiliary tank fuel boost pumps part number 398000-2 in accordance with MD-80 AMM
28-20-18.
9. Close access panel 1436C. Refer to MD-80 AMM 28-20-07.
10. Do an operational test on the center wing tank fuel boost pumps in accordance with MD-80 AMM
28-20-07
11. Do an operational test on the aft auxiliary tank fuel boost pumps in accordance with MD-80 AMM
28-20-18.
12. Install kept floor panels. Refer to MD-80 AMM 53-20-01.
13. Install kept passenger seats. Refer to MD-80 AMM 25-23-00.
14. Put the airplane back to a serviceable condition.
Group 2, Configuration 2:
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1. Open access panel 1436C. Refer to MD-80 AMM 28-20-07.
2. Remove/keep passenger seats as required for access to the aft auxiliary tank fuel boost pumps.
Refer to MD-80 AMM 25-23-00.
3. Remove/keep floor panels as required for access to the aft auxiliary tank fuel boost pumps. Refer
to MD-80 AMM 53-20-01.
4. Replace center wing tank fuel boost pumps with part number 398000-2 in accordance with MD-80
AMM 28-20-07.
5. Replace aft auxiliary tank fuel boost pumps with part number 398000-2 in accordance with MD-80
AMM 28-20-18.
6. Close access panel 1436C. Refer to MD-80 AMM 28-20-07.
7. Do an operational test on the center wing tank fuel boost pumps in accordance with MD-80 AMM
28-20-07
8. Do an operational test on the aft auxiliary tank fuel boost pumps in accordance with MD-80 AMM
28-20-18.
9. Install kept floor panels. Refer to MD-80 AMM 53-20-01.
10. Install kept passenger seats. Refer to MD-80 AMM 25-23-00.
11. Put the airplane back to a serviceable condition.
Group 3, Configuration 1:
1. Open access panel 1436C. Refer to MD-80 AMM 28-20-07.
2. Remove/keep passenger seats as required for access on the forward and aft auxiliary tanks. Refer
to MD-80 AMM 25-23-00.
3. Remove/keep floor panels as required for access on the forward and aft auxiliary tanks. Refer to
MD-80 AMM 53-20-01.
4. Remove center wing tank fuel boost pumps in accordance with MD-80 AMM 28-20-07.
5. Remove forward and aft auxiliary tanks fuel boost pumps in accordance with MD-80 AMM 28-20-18.
6. Change or replace the fuel boost pumps in accordance with Argo-Tech Service Bulletin 398000-28-2
Revision 1.
7. Install center wing tank fuel boost pumps part number 398000-2 in accordance with MD-80 AMM
28-20-07.
8. Install forward and aft auxiliary tanks fuel boost pumps part number 398000-2 in accordance with
MD-80 AMM 28-20-18.
9. Close access panel 1436C. Refer to MD-80 AMM 28-20-07.
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10. Do an operational test on the center wing tank fuel boost pumps in accordance with MD-80 AMM
28-20-07
11. Do an operational test of the forward and aft auxiliary tanks fuel boost pumps in accordance with
MD-80 AMM 28-20-18.
12. Install/kept floor panels. Refer to MD-80 AMM 53-20-01.
13. Install/kept passenger seats. Refer to MD-80 AMM 25-23-00.
14. Put the airplane back to a serviceable condition.
Group 3, Configuration 2:
1. Open access panel 1436C. Refer to MD-80 AMM 28-20-07.
2. Remove/keep passenger seats as required for access to the forward and aft auxiliary tanks. Refer
to MD-80 AMM 25-23-00.
3. Remove/keep floor panels as required for access to the forward and aft auxiliary tanks. Refer to
MD-80 AMM 53-20-01.
4. Replace center wing tank fuel boost pumps with part number 398000-2 in accordance with MD-80
AMM 28-20-07.
5. Replace forward and aft auxiliary tanks fuel boost pumps with part number 398000-2 in accordance
with MD-80 AMM 28-20-18.
6. Close access panel 1436C. Refer to MD-80 AMM 28-20-07.
7. Do an operational test on the center wing tank fuel boost pumps in accordance with MD-80 AMM
28-20-07
8. Do an operational test on the forward and aft auxiliary tanks fuel boost pumps in accordance with
MD-80 AMM 28-20-18.
9. Install/kept floor panels. Refer to MD-80 AMM 53-20-01.
10. Install/kept passenger seats. Refer to MD-80 AMM 25-23-00.
11. Put the airplane back to a serviceable condition.
Group 4, Configuration 1:
1. Remove/keep passenger seats as required for access to the forward auxiliary tank fuel boost
pump. Refer to DC-9 AMM 25-23-0.
2. Remove/keep floor panels as required for access to the forward auxiliary tank fuel boost pump.
Refer to DC-9 AMM 53-20-1.
3. Remove forward auxiliary tank fuel boost pump in accordance with DC-9 AMM 28-20-18.
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4. Change or replace the fuel boost pump in accordance with Argo-Tech Service Bulletin 398000-28-2
Revision 1.
5. Install forward auxiliary tank fuel boost pump part number 398000-2 in accordance with DC-9 AMM
28-20-18.
6. Do an operational test on the forward auxiliary tank fuel boost pump in accordance with DC-9 AMM
28-20-18.
7. Install/kept floor panels. Refer to DC-9 AMM 53-20-1.
8. Install/kept passenger seats. Refer to DC-9 AMM 25-23-0.
9. Put the airplane back to a serviceable condition.
Group 4, Configuration 2:
1. Remove/keep passenger seats as required for access to the forward auxiliary tank fuel boost
pump. Refer to DC-9 AMM 25-23-0.
2. Remove/keep floor panels as required for access to the forward auxiliary tank fuel boost pump.
Refer to DC-9 AMM 53-20-1.
3. Replace forward auxiliary tank fuel boost pump with part number 398000-2 in accordance with
DC-9 AMM 28-20-18.
4. Do an operational test on the forward auxiliary tank fuel boost pump in accordance with DC-9 AMM
28-20-18.
5. Install/kept floor panels. Refer to DC-9 AMM 53-20-1.
6. Install/kept passenger seats. Refer to DC-9 AMM 25-23-0.
7. Put the airplane back to a serviceable condition.
Group 5, Configuration 1:
1. Remove/keep passenger seats as required for access to the forward and aft auxiliary tanks fuel
boost pumps. Refer to DC-9 AMM 25-23-0.
2. Remove/keep floor panels as required for access to the forward and aft auxiliary tanks fuel boost
pumps. Refer to DC-9 AMM 53-20-1.
3. Remove forward and aft auxiliary tanks fuel boost pumps in accordance with DC-9 AMM 28-20-18.
4. Change or replace the fuel boost pumps in accordance with Argo-Tech Service Bulletin 398000-28-2
Revision 1.
5. Install forward and aft auxiliary tanks fuel boost pumps part number 398000-2 in accordance with
DC-9 AMM 28-20-18.
6. Do an operational test on the forward and aft auxiliary tanks fuel boost pumps in accordance with
DC-9 AMM 28-20-18.
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7. Install/kept floor panels. Refer to DC-9 AMM 53-20-1.
8. Install/kept passenger seats. Refer to DC-9 AMM 25-23-0.
9. Put the airplane back to a serviceable condition.
Group 5, Configuration 2:
1. Remove/keep passenger seats as required for access to the forward and aft auxiliary tanks fuel
boost pumps. Refer to DC-9 AMM 25-23-0.
2. Remove/keep floor panels as required for access to the forward and aft auxiliary tanks fuel boost
pumps. Refer to DC-9 AMM 53-20-1.
3. Replace forward and aft auxiliary tanks fuel boost pumps with part number 398000-2 in accordance
with DC-9 AMM 28-20-18.
4. Do an operational test on the forward and aft auxiliary tanks fuel boost pumps in accordance with
DC-9 AMM 28-20-18.
5. Install/kept floor panels. Refer to DC-9 AMM 53-20-1.
6. Install/kept passenger seats. Refer to DC-9 AMM 25-23-0.
7. Put the airplane back to a serviceable condition.
Group 6, Configuration 1:
1. Remove/keep passenger seats as required for access to the forward auxiliary tank. Refer to DC-9
AMM 25-23-0.
2. Remove/keep floor panels as required for access to the forward auxiliary tank. Refer to DC-9 AMM
53-20-1.
3. Remove forward auxiliary tank fuel boost pumps in accordance with DC-9 AMM 28-20-18.
4. Change or replace the fuel boost pumps in accordance with Argo-Tech Service Bulletin 398000-28-2
Revision 1.
5. Install forward auxiliary tank fuel boost pumps part number 398000-2 in accordance with DC-9
AMM 28-20-18.
6. Do an operational test on the forward auxiliary tank fuel boost pumps in accordance with DC-9
AMM 28-20-18.
7. Install/kept floor panels. Refer to DC-9 AMM 53-20-1.
8. Install/kept passenger seats. Refer to DC-9 AMM 25-23-0.
9. Put the airplane back to a serviceable condition.
Group 6, Configuration 2:
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: February 22, 2008
DC9-28-212Revision 1: June 16, 2009
46 of 48
BOEING SERVICE BULLETIN DC9-28-212

### Page 47

1. Remove/keep passenger seats as required for access to the forward auxiliary tank. Refer to DC-9
AMM 25-23-0.
2. Remove/keep floor panels as required for access to the forward auxiliary tank. Refer to DC-9 AMM
53-20-1.
3. Replace forward auxiliary tank fuel boost pumps with part number 398000-2 in accordance with
DC-9 AMM 28-20-18.
4. Do an operational test on the forward auxiliary tank fuel boost pumps in accordance with DC-9
AMM 28-20-18.
5. Install/kept floor panels. Refer to DC-9 AMM 53-20-1.
6. Install/kept passenger seats. Refer to DC-9 AMM 25-23-0.
7. Put the airplane back to a serviceable condition.
Group 7, Configuration 1:
1. Remove/keep passenger seats as required for access to the forward and aft auxiliary tank fuel
boost pumps. Refer to DC-9 AMM 25-23-0.
2. Remove/keep floor panels as required for access to the forward and aft auxiliary tank fuel boost
pumps. Refer to DC-9 AMM 53-20-1.
3. Remove forward and aft auxiliary tanks fuel boost pumps in accordance with DC-9 AMM 28-20-18.
4. Change or replace the fuel boost pumps in accordance with Argo-Tech Service Bulletin 398000-28-2
Revision 1.
5. Install forward and aft auxiliary tanks fuel boost pumps part number 398000-2 in accordance with
DC-9 AMM 28-20-18.
6. Do an operational test on the forward and aft auxiliary tank fuel boost pumps in accordance with
DC-9 AMM 28-20-18.
7. Install/kept floor panels. Refer to DC-9 AMM 53-20-1.
8. Install/kept passenger seats. Refer to DC-9 AMM 25-23-0.
9. Put the airplane back to a serviceable condition.
Group 7, Configuration 2:
1. Remove/keep passenger seats as required for access to the forward and aft auxiliary tank fuel
boost pumps. Refer to DC-9 AMM 25-23-0.
2. Remove/keep floor panels as required for access to the forward and aft auxiliary tank fuel boost
pumps. Refer to DC-9 AMM 53-20-1.
3. Replace forward and aft auxiliary tanks fuel boost pumps with part number 398000-2 in accordance
with DC-9 AMM 28-20-18.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: February 22, 2008
DC9-28-212Revision 1: June 16, 2009
47 of 48
BOEING SERVICE BULLETIN DC9-28-212

### Page 48

4. Do an operational test on the forward and aft auxiliary tank fuel boost pumps in accordance with
DC-9 AMM 28-20-18.
5. Install/kept floor panels. Refer to DC-9 AMM 53-20-1.
6. Install/kept passenger seats. Refer to DC-9 AMM 25-23-0.
7. Put the airplane back to a serviceable condition.
Group 8, Configuration 1:
1. Remove/keep passenger seats as required for access to the aft auxiliary tank fuel boost pumps.
Refer to DC-9 AMM 25-23-0.
2. Remove/keep floor panels as required for access to the aft auxiliary tank fuel boost pumps. Refer
to DC-9 AMM 53-20-1.
3. Remove aft auxiliary tank fuel boost pumps in accordance with DC-9 AMM 28-20-18.
4. Change or replace the fuel boost pumps in accordance with Argo-Tech Service Bulletin 398000-28-2
Revision 1.
5. Install aft auxiliary tank fuel boost pumps part number 398000-2 in accordance with DC-9 AMM
28-20-18.
6. Do an operational test on the aft auxiliary tank fuel boost pumps in accordance with DC-9 AMM
28-20-18.
7. Install/kept floor panels. Refer to DC-9 AMM 53-20-1.
8. Install/kept passenger seats. Refer to DC-9 AMM 25-23-0.
9. Put the airplane back to a serviceable condition.
Group 8, Configuration 2:
1. Remove/keep passenger seats as required for access to the aft auxiliary tank fuel boost pumps.
Refer to DC-9 AMM 25-23-0.
2. Remove/keep floor panels as required for access to the aft auxiliary tank fuel boost pumps. Refer
to DC-9 AMM 53-20-1.
3. Replace aft auxiliary tank fuel boost pumps with part number 398000-2 in accordance with DC-9
AMM 28-20-18.
4. Do an operational test on the aft auxiliary tank fuel boost pumps in accordance with DC-9 AMM
28-20-18.
5. Install/kept floor panels. Refer to DC-9 AMM 53-20-1.
6. Install/kept passenger seats. Refer to DC-9 AMM 25-23-0.
7. Put the airplane back to a serviceable condition.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: February 22, 2008
DC9-28-212Revision 1: June 16, 2009
48 of 48
BOEING SERVICE BULLETIN DC9-28-212

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