# Boeing Service Bulletin DC10-28-252: Revision 1

- Rights: © The Boeing Company. Filed by the FAA in regulations.gov docket FAA-2010-0384; AD 2010-20-14 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Boeing Service Bulletin DC10-28-252](https://openairdocs.org/service-documents/boeing/dc10-28-252.md)
- Title as filed: U.S. DOT/FAA - SB-DC10-28-252-01
- Pages: 83
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### Page 1

McDonnell DouglasCommercial 
Airplanes
DC10
Service Bulletin
Number: DC10-28-252
Original Issue: November 25, 2008
Revision 1: January 06, 2010
ATA System: 2800
SUBJECT: FUEL - Fuel Systems - Install Fuel Tank Float Level Switch and Aft Auxiliary Tank Fuel
Pump Pressure Switch In-line Fuses
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Unpublished Work - All Rights Reserved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, KC-10, KDC-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.
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Table of Contents
Revision Transmittal Sheet ............................................ 5
Summary ...................................................... 7
1. PLANNING INFORMATION ........................................ 9
A. Effectivity ................................................ 9
1. Airplanes ............................................. 9
2. Spares Affected ........................................ 1 5
B. Concurrent Requirements ...................................... 1 5
C. Reason ................................................ 1 5
D. Description .............................................. 1 5
E. Compliance .............................................. 1 7
F. Approval ............................................... 1 7
G. Manpower .............................................. 1 7
H. Weight and Balance Changes .................................... 1 9
I. Electrical Load Data ......................................... 1 9
J. References .............................................. 2 0
1. Existing Data: ......................................... 2 0
2. Data supplied with this Service Bulletin: ........................... 2 0
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 2 0
4. Process Data: ......................................... 2 0
K. Publications Affected ........................................ 2 0
L. Interchangeability and Intermixability of Parts ........................... 2 1
2. MATERIAL INFORMATION ........................................ 2 3
A. Material - Price and Availability ................................... 2 3
B. Industry Support Information .................................... 2 3
C. Parts Necessary For Each Airplane ................................. 2 3
1. Kits/Parts: ........................................... 2 3
2. Parts and Materials Supplied by the Operator: ........................ 3 7
3. Parts Modified and Reidentified: ............................... 3 7
4. Parts Removed and Not Replaced: .............................. 3 7
D. Parts Necessary to Change Spares ................................. 3 7
E. Special Tooling - Price and Availability ............................... 3 7
F. Special Tooling Necessary to do this Service Bulletin ....................... 3 7
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 3 9
A. GENERAL INFORMATION ..................................... 3 9
B. WORK INSTRUCTIONS ....................................... 4 0
Appendix A: FUEL TANK 1 - MD-10-10F AND MD-10-30F [Group 1-2] .................. 4 6
Appendix B: FUEL TANK 1 - DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30 W/AFT TANK 1500
AND 3200 GALLONS, DC-10-30F, DC-10-30F (KC-10A), DC-10-30F (KDC-10), DC-10-40,
DC-10-40F [Group 3-7] ..................................... 4 7
Appendix C: FUEL TANK 2 - MD-10-10F AND MD-10-30F [Group 1-2] .................. 4 8
Appendix D: FUEL TANK 2 - DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F, DC-10-30F (KC-10A),
DC-10-30F (KDC-10), DC-10-40, DC-10-40F [Group 3, 6-7] ................. 4 9
Appendix E: FUEL TANK 2 - DC-10-30 W/AFT TANK 1500 AND 3200 GALLONS [Group 4-5] ..... 5 0
Appendix F: FUEL TANK 3 - MD-10-10F AND MD-10-30F [Group 1-2] .................. 5 1
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Appendix G: FUEL TANK 3 - DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30 W/AFT TANK 1500
AND 3200 GALLONS, DC-10-30F, DC-10-30F (KC-10A), DC-10-30F (KDC-10), DC-10-40,
DC-10-40F [Group 3-7] ..................................... 5 2
Appendix H: UPPER AND LOWER AUXILIARY FUEL TANKS - MD-10-30F [Group 2] ......... 5 3
Appendix I: CENTER WING TANKS - DC-10-30F (KC-10A) AND DC-10-30F (KDC-10) [Group 6-7] . 54
Appendix J: FORWARD AND AFT AUXILIARY - DC-10-30F (KC-10A) [Group 6] ............ 5 5
Appendix K: AFT AUXILIARY FUEL TANK - DC-10-30 W/AFT TANK 1500 GALLONS [Group 4] .... 5 6
Appendix L: UPPER AND LOWER AUXILIARY TANKS - DC-10-30 W/AFT 1500 AND 3200 GALLONS
[Group 4-5] ........................................... 5 7
Appendix M: AFT AUXILIARY FUEL TANK - DC-10-30 W/AFT 3200 GALLONS [Group 5] ....... 5 8
Appendix N: MD-10-10F - FUSE FUNCTIONAL TEST [Group 1] ..................... 5 9
Appendix O: MD-10-30F - FUSE FUNCTIONAL TEST [Group 2] ..................... 6 0
Appendix P: DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F, DC-10-40 AND DC-10-40F - FUSE
FUNCTIONAL TEST [Group 3] ................................ 6 2
Appendix Q: DC-10-30 W/AFT TANK 1500 GALLONS - FUSE FUNCTIONAL TEST [Group 4] ..... 6 3
Appendix R: DC-10-30 W/AFT TANK 3200 GALLONS - FUSE FUNCTIONAL TEST [Group 5] ..... 7 1
Appendix S: DC-10-30F (KC-10A) - FUSE FUNCTIONAL TEST [Group 6] ................ 8 0
Appendix T: DC-10-30F (KDC-10) - FUSE FUNCTIONAL TEST [Group 7] ................ 8 2
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McDonnell DouglasCommercial 
Airplanes
DC10
Service Bulletin
Revision Transmittal SheetNumber: DC10-28-252Original Issue: November 25, 2008
Revision 1: January 06, 2010
ATA System: 2800
SUBJECT: FUEL - Fuel Systems - Install Fuel Tank Float Level Switch and Aft Auxiliary Tank Fuel
Pump Pressure Switch In-line Fuses
This revision includes all pages of the service bulletin.
COMPLIANCE INFORMATION RELATED TO THIS REVISION
More work is necessary on airplane changed in accordance with the original issue of this service bulletin.
The more work involved is to change wire identifications Q 835 G22 and Q 835 H22 to Q 835 M22 and Q 835
N22 respectively in accordance with Drawing SR10280063 "D" change.
REASON FOR REVISION
This revision is sent to change wire identifications Q 835 G22 and Q 835 H22 to Q 835 M22 and Q 835 N22
respectively in accordance with Drawing SR10280063 "D" change.
These sections were changed:
1. In Paragraph 1.A.1., Airplanes, moved airplanes from Group 3 to Groups 1 and 2.
2. In Paragraph 1.D., Description, added Maintenance Zones.
3. In Paragraph 1.F., Approval, change statement.
4. In Paragraph 1.J.2.a., Drawings, changed drawing change D.
5. In Paragraph 1.K., Publications Affected, added Tolerance Based Structural Inspections data.
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
November 25, 2008Original Issue:
January 06, 2010Revision 1:
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McDonnell DouglasCommercial 
Airplanes
DC10
Service Bulletin
SummaryNumber: DC10-28-252Original Issue: November 25, 2008
Revision 1: January 06, 2010
ATA System: 2800
SUBJECT: FUEL - Fuel Systems - Install Fuel Tank Float Level Switch and Aft Auxiliary Tank Fuel
Pump Pressure Switch In-line Fuses
CONCURRENT REQUIREMENTS
None.
BACKGROUND
An investigation by Boeing has determined that float level switch wires located on the left and right wing forward
spar, right main landing gear wheel well, forward and aft cargo compartments and fuel pump pressure switch
wires located in the aft cargo compartment are routed in the same bundles as power wires. If a short circuit
between a float level or fuel pump pressure switch wire and a power wire occurs, an over current can cause
excessive temperatures in the float level or fuel pump pressure switch wires, resulting in damage. Adding an
in-line fuse as a self-contained component in each float level and pressure switch circuit and sleeving the wires
between the fuel tank and the in-line fuse will minimize the possibility of excessive temperatures in the float level
or pressure switch wires. If not corrected, and there is a short circuit of the float level or pressure switch wire to
a power wire, possible damage to the float level or fuel pump pressure switch wire could occur, and become a
potential ignition source for the fuel tank.
This service bulletin is the result of the safety assessments conducted by Boeing under a Special Federal Aviation
Regulation (SFAR) 88, Fuel Tank System Fault Tolerance Evaluation Requirements.
ACTION
Group 1-3, 6-7:
This service bulletin installs fuel tank float level switch in-line fuses.
Group 4-5:
This service bulletin installs fuel tank float level switch and aft auxiliary tank fuel pump pressure switch in-line
fuses.
EFFECTIVITY
DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F, DC-10-30F(KC-10A), DC-10-30F(KDC-10), DC-10-40,
DC-10-40F, MD-10-10F, and MD-10-30F Airplanes. Refer to Paragraph 1.A.1., Airplanes for the list of affected
airplanes.
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COMPLIANCE
The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service
bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin
mandatory.
Boeing recommends that the change given in this service bulletin be done within 5 years after the original issue
date of this service bulletin.
INDUSTRY SUPPORT INFORMATION
Boeing warranty remedies are not available for the configuration changes given in this service bulletin.
MANPOWER
Refer to Paragraph 1.G., for Manpower information.
MATERIAL INFORMATION
Boeing Supplied Kits/Parts.
Refer to Paragraph 2.A., Material - Price and Availability.
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McDonnell DouglasCommercial 
Airplanes
DC10
Service Bulletin
Number: DC10-28-252
Original Issue: November 25, 2008
Revision 1: January 06, 2010
ATA System: 2800
SUBJECT: FUEL - Fuel Systems - Install Fuel Tank Float Level Switch and Aft Auxiliary Tank Fuel
Pump Pressure Switch In-line Fuses
1.    PLANNING INFORMATION
A. Effectivity
1. Airplanes
NOTE: Any Group 3 DC-10-10, DC-10-10F, and DC-10-15 Airplane modified to MD-10-10F by
Boeing Engineering, become Group 1 Airplanes.
Any Group 3 DC-10-30 and DC-10-30F Airplanes modified to MD-10-30F by Boeing
Engineering, become Group 2 Airplanes.
Airplane fuselage number 404 had this modification incorporated at the operator's facility
in accordance with Drawing SR10280063-7011.
DESCRIPTIONCONFIGURATIONGROUP
Applicable to DC-10-10, DC-10-10F and MD-10-10F airplanes.-1
Applicable to DC-10-30F and MD-10-30F airplanes.-2
Applicable to DC-10-10, DC-10-10F, DC-10-15, DC-10-30,
DC-10-30F, DC-10-40 and DC-10-40F airplanes.
-3
Applicable to DC-10-30 airplanes with 1500 gallon aft auxiliary fuel
tank.
-4
Applicable to DC-10-30 airplanes with 3200 gallon aft auxiliary fuel
tank.
-5
Applicable to DC-10-30F (KC-10A) airplanes.-6
Applicable to DC-10-30F (KDC-10) airplanes.-7
Airplane Models:
DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F, DC-10-30F (KC-10A), DC-10-30F
(KDC-10), DC-10-40, DC-10-40F, MD-10-10F, MD-10-30F
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GroupFuselage Num-
ber
3100
2103
3106
2110
1112
3114 - 115
3117
1119
3122 - 123
3127
3129
3131 - 135
3137
1138 - 140
1142
1144 - 145
3146 - 147
1148
115
3150
3152
1153 - 155
3156 - 158
3160
3162
3165 - 166
1169
117
3170 - 171
1173
3174
1177
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GroupFuselage Num-
ber
3178 - 179
3183 - 184
3187 - 190
3192
1194
3195 - 196
1198
3199
32
3201
1203
3204
1205
3206
1207 - 210
3211 - 216
2219
3220 - 221
3223 - 227
3229 - 232
3234
7235
3236
3239 - 242
3244 - 246
1247
3248
1249
125
1250
3251 - 256
2257
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GroupFuselage Num-
ber
126
3261 - 263
7264
3265 - 268
1269
127
1270 - 273
3274 - 275
2277
3281
2282
3285 - 286
3289 - 291
4292
1294
3296
1297 - 298
3299 - 306
1307
3308
1309
3310
6311
3312 - 316
2317
3318
1319
132
1321
1323
3324 - 325
2326
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GroupFuselage Num-
ber
3327
3329
133
2330
3332
6333
3334 - 339
334
3340
5341
3342 - 343
1344
5345
3346
1347
3349
135
1351
1353
3355 - 356
3358
6359 - 361
6363
3366 - 367
3372
6373
6375 - 378
1379
6380
3381
6383 - 389
139
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GroupFuselage Num-
ber
6390 - 399
340
6400 - 408
2409
341
6410 - 411
2412
6413 - 415
2416
6417 - 418
2419
142
6420 - 421
2422
6423 - 429
343
6430 - 432
2433
5434 - 438
6439
2440
6441
2442 - 444
3445 - 446
155
159
16
360 - 61
162
365
170
371 - 72
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GroupFuselage Num-
ber
176
178
18
383
186
189
390
296
399
2. Spares Affected
None.
B. Concurrent Requirements
None.
C. Reason
An investigation by Boeing has determined that float level switch wires located on the left and right
wing forward spar, right main landing gear wheel well, forward and aft cargo compartments and fuel
pump pressure switch wires located in the aft cargo compartment are routed in the same bundles as
power wires. If a short circuit between a float level or fuel pump pressure switch wire and a power wire
occurs, an over current can cause excessive temperatures in the float level or fuel pump pressure
switch wires, resulting in damage. Adding an in-line fuse as a self-contained component in each float
level and pressure switch circuit and sleeving the wires between the fuel tank and the in-line fuse will
minimize the possibility of excessive temperatures in the float level or pressure switch wires. If not
corrected, and there is a short circuit of the float level or pressure switch wire to a power wire, possible
damage to the float level or fuel pump pressure switch wire could occur, and become a potential ignition
source for the fuel tank.
This service bulletin is the result of the safety assessments conducted by Boeing under a Special
Federal Aviation Regulation (SFAR) 88, Fuel Tank System Fault Tolerance Evaluation Requirements.
Revision 1 is sent to change wire identifications Q 835 G22 and Q 835 H22 to Q 835 M22 and Q 835
N22 respectively in accordance with Drawing SR10280063 "D" change.
D. Description
Group 1-3, 6-7:
This service bulletin installs fuel tank float level switch in-line fuses.
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Group 4-5:
This service bulletin installs fuel tank float level switch and aft auxiliary tank fuel pump pressure switch
in-line fuses.
Revision 1 - More work is necessary on airplane changed in accordance with the original issue of this
service bulletin.
The more work involved is to change wire identifications Q 835 G22 and Q 835 H22 to Q 835 M22 and
Q 835 N22 respectively in accordance with Drawing SR10280063 "D" change.
The work in this service bulletin is done in the maintenance zone(s) given below.
Group 1:
Affected Maintenance Zones
ZoneModel
516, 526, 527, 537, 616, 626, 627, 637DC-10-10F, MD-10-10F
Group 2:
Affected Maintenance Zones
ZoneModel
516, 526, 527, 537, 616, 626, 627, 637DC-10-30F, MD-10-30F
Group 3:
Affected Maintenance Zones
ZoneModel
516, 526, 527, 537, 616, 626, 627, 637DC-10-10, DC-10-10F, DC-10-
15, DC-10-30, DC-10-30F, DC-
10-30F (KDC-10), DC-10-40,
DC-10-40F
Group 4-5:
Affected Maintenance Zones
ZoneModel
516, 526, 527, 537, 616, 626, 627, 637DC-10-30
Group 6:
Affected Maintenance Zones
ZoneModel
511, 521, 531, 611, 621, 631DC-10-30F (KC-10A)
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Group 7:
Affected Maintenance Zones
ZoneModel
511, 521, 531, 611, 621, 631DC-10-30F (KDC-10)
E. Compliance
The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to
this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this
service bulletin mandatory.
Boeing recommends that the change given in this service bulletin be done within 5 years after the
original issue date of this service bulletin.
F. Approval
For MD-10 Models:
This service bulletin was examined by the Federal Aviation Administration (FAA). The changes specified
in this service bulletin comply with the applicable regulations and are FAA approved. This service
bulletin and its approval were based on the airplane in its original Boeing delivery configuration or as
modified by other approved Boeing changes.
For DC-10 Models:
This service bulletin was examined by the Federal Aviation Administration (FAA). The changes specified
in this service bulletin comply with the applicable regulations and are FAA approved, as well as European
Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/JAA approved
airplanes listed in the service bulletin effectivity. This service bulletin and its approval were based on
the airplane in its original Boeing delivery configuration or as modified by other approved Boeing
changes.
If an airplane has a non-Boeing modification or repair that affects a component or system also affected
by this service bulletin, the operator is responsible for obtaining appropriate regulatory agency approval
before incorporating this service bulletin.
G. Manpower
The table below shows an estimate of the task hours necessary to do this modification for each airplane.
This estimate is for direct labor only, done by an experienced crew. Adjust the estimate with operator
task hour data if necessary. The estimate does not include lost time. These are some examples of lost
time:
— Time to adjust to the workplace
— Time to schedule the work
— Time to examine the work
— Time to cure the materials
— Time to make the parts
— Time to find the tools.
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Group 1:
Elapsed HoursTask HoursNumber of PersonsTask
10.521.02Open Access
47.795.42Change
4.89.62Test
12.525.02Close Access
75.5151.0TOTAL FOR EACH AIRPLANE
Group 2:
Elapsed HoursTask HoursNumber of PersonsTask
10.521.02Open Access
53.0106.02Change
5.310.62Test
12.525.02Close Access
81.3162.6TOTAL FOR EACH AIRPLANE
Group 3:
Elapsed HoursTask HoursNumber of PersonsTask
10.521.02Open Access
31.863.62Change
3.26.42Test
12.525.02Close Access
58.0116.0TOTAL FOR EACH AIRPLANE
Group 4:
Elapsed HoursTask HoursNumber of PersonsTask
10.521.02Open Access
61.0122.02Change
6.112.22Test
12.525.02Close Access
90.1180.2TOTAL FOR EACH AIRPLANE
Group 5:
Elapsed HoursTask HoursNumber of PersonsTask
10.521.02Open Access
66.0132.02Change
6.613.22Test
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Group 5:
Elapsed HoursTask HoursNumber of PersonsTask
12.525.02Close Access
95.6191.2TOTAL FOR EACH AIRPLANE
Group 6:
Elapsed HoursTask HoursNumber of PersonsTask
10.521.02Open Access
45.090.02Change
4.59.02Test
12.525.02Close Access
72.5145.0TOTAL FOR EACH AIRPLANE
Group 7:
Elapsed HoursTask HoursNumber of PersonsTask
10.521.02Open Access
37.074.02Change
3.77.42Test
12.525.02Close Access
63.7127.4TOTAL FOR EACH AIRPLANE
H. Weight and Balance Changes
Moment Change
(MEW) IN.-LBS
Mfr's Empty Weight
(MEW) LBS
Approximate Station
(Inches)
Airplane
Group
+ 8542.4+ 6.11400.41
+ 9904.5+ 7.11395.02
+ 5950.8+ 4.31383.93
+ 10039.5+ 6.91455.04
+ 11139.8+ 7.51485.35
+ 7915.8+ 5.81364.86
+ 6762.5+ 4.91380.17
I. Electrical Load Data
Not changed.
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J. References
1. Existing Data:
a. DC-10 Aircraft Maintenance Manual (AMM) 06-21-00, 06-27-00, 06-32-09, 06-32-11, 06-35-00,
06-36-00, 12-11-04, 12-11-05 and 28-43-01.
b. MD-10 Aircraft Maintenance Manual (AMM) 06-27-00, 06-35-00, 06-36-00, 12-11-05 and
28-43-01.
c. Standard Wiring Practices Manual (SWPM) 20-00-00, 20-00-09, 20-00-13, 20-00-16, 20-10-01,
20-10-04, 20-20-02, 20-20-03 and 20-40-01.
d. DC-10, MD-10-10 Structural Repair Manual (SRM) 51.
e. Wire Diagram Manual (WDM) Chapters 28-21-01, 28-21-03, 28-22-05, 28-22-06, 28-22-07,
28-22-08, 28-41-09, 28-43-01, 28-43-02, 28-44-01, 28-44-04, 28-46-01 and 28-62-01.
2. Data supplied with this Service Bulletin:
No data is supplied with this service bulletin. To obtain the data necessary to support this service
bulletin submit a data request to:
Data and Services Management
MS D800-0019
3855 Lakewood Boulevard
Long Beach, California 90846
Phone: (562) 593-6996
Fax: (562) 593-2001
E-mail: dse.boecom@boeing.com
a. Drawings:
ADCNDCN/REVSheetTitleDrawing No
-DDWGElectrical Installation - In-line fuseSR10280063
3. Installation Drawings Used in the Preparation of this Service Bulletin:
None
4. Process Data:
Douglas Process Specifications referred to on the drawing are not given in this service bulletin
since these procedures are frequently used as standard shop practices.
K. Publications Affected
1. Publications:
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
20 of 83
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### Page 21

Chapter-SectionPublication
05-53, 28-12, 28-21, 28-
22, 28-25, 28-30, 28-43,
28-46 and 36-13
Aircraft Maintenance Manual
36-23Fault Isolation Manual (MD-10)
28-42Illustrated Parts Catalog
28-02, 28-41 and 36-23DC-10 TAFI PT1
36-23Turnaround Fault Isolation Manual (DC-10, KC-10 and KDC-10)
28-00, 28-21, 28-22, 28-
41, 28-43, 28-44, 28-46
and 28-62
Wiring Diagram Manual
2. Damage Tolerance Based Structural Inspections:
Boeing has evaluated the repairs and/or changes in this service bulletin for effects on Fatigue
Critical Structure (FCS) and for changes to Damage Tolerance Inspections (DTI) required in the
Maintenance Program. This service bulletin does not affect FCS, therefore DTIs are not necessary.
L. Interchangeability and Intermixability of Parts
Accomplishment of this service bulletin does not affect interchangeability or intermixability of parts.
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
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### Page 22

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Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
22 of 83
BOEING SERVICE BULLETIN DC10-28-252
BLANK PAGE

### Page 23

2.    MATERIAL INFORMATION
A. Material - Price and Availability
Boeing can supply the kits/parts shown in Paragraph 2.C., Parts Necessary For Each Airplane as
shown below. If there is a limit to the quantity (QTY) of available kits/parts, a supply sequence is given
by Spares. More kits/parts become available as shown in the Reorder Lead Time (ROLT). ROLT is
calculated from the date Boeing gets the purchase order.
Unit Price thru
February 28, 2009
ROLT
(Weeks)
QTYNameKit Number
$3,139.00171Service KitSB10280252-3
3,589.00171Service KitSB10280252-5
3,394.00171Service KitSB10280252-7
5,378.00171Service KitSB10280252-9
5,598.00171Service KitSB10280252-11
5,398.00171Service KitSB10280252-13
4,505.00171Service KitSB10280252-15
REFERENCE THIS SERVICE BULLETIN AND SUBMIT YOUR PURCHASE ORDER BY ONE OF
THE METHODS THAT FOLLOW:
1. Order on-line via ATA Spec 2000 or Boeing Part Page
2. Fax to (206) 662-7145
3. Spares Customer Support - MC 36-65 Boeing Spares Department P.O. Box 3707 Seattle,
Washington 98124-2207 USA
B. Industry Support Information
Boeing warranty remedies are not available for the configuration changes given in this service bulletin.
C. Parts Necessary For Each Airplane
1. Kits/Parts:
To get the kits/parts shown below, refer to Paragraph 2.A., Material - Price and Availability.
Group 1:
Kit SB10280252
NotesNameQTYNew Part Number
-3
(a)SCREW33D0005-08-10
(a)SCREW343D0005-08-8
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
23 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 24

Group 1:
Kit SB10280252
NotesNameQTYNew Part Number
-3
(a)SCREW43D0005-3-22
(a)SCREW63D0005-3-26
(a)SCREW13D0005-3-28
(a)SCREW23D0005-3-8
(a)TERMINAL LUG 878125D0086-3
(a)TERMINAL LUG 76235D0086-6
(a)SEALING PLUG365D0206-20
IN-LINE FUSE1865053-220
BRACKET1ANN0012-1
SOCKET T/C 5243M39029/22-192
COVER ASSY1MS18029-6S8
RIVET4MS20470AD5-5D
NUT67MS21042L08
NUT2MS21042L3
CLAMP4MS21919WDG10
CLAMP6MS21919WDG3
CLAMP2MS21919WDG5
CLAMP2MS21919WDG7
TERMINAL BOARD1MS27212-6-8
LOCKWASHER33MS35338-42
LOCKWASHER2MS35338-43
WASHER6NAS1252-10H
WASHER40NAS1252-10L
WASHER3NAS1252-8H
WASHER104NAS1252-8L
SPACER4NAS43DD3-48FC
SPACER6NAS43DD3-64FC
SPACER1NAS43DD3-72FC
WASHER3NAS620A4
BOLT3NAS7700-3
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
24 of 83
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### Page 25

Group 1:
Kit SB10280252
NotesNameQTYNew Part Number
-3
(a)CLAMP1S7934111-2SA
(a)CLAMP19S7934111-3SA
(a)CLAMP1S7934111-4SA
(a)CLAMP2S7934111-5SA
(a)CLAMP1S7934111-6SA
(a)CLAMP4S7934111-7SA
(a)CLAMP18S7934111-9SA
WIRE KIT1SR10280063-102
WIRE KIT1SR10280063-103
SLEEVING165 FT X
.166 I.D.
SR10280063-3
(DMS 2109, Type 1)
or equivalent
TIE TAPE50 YDSSR10280063-7
(DMS 2089) or
equivalent
BRACKET2TA4012F21
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
Group 1:
Wire Kit SR10280063
NotesNameQTYQTYNew Part Number
-103-102
WIRE CODE 80160 FT107 FTDC2426-1C-22NM (DMS 2426)
or equivalent
SOCKET T/C 5241320M39029/22-192
(a)TERMINAL LUG 87811135D0086-3
(a)TERMINAL LUG 762275D0086-6
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
Group 2:
Kit SB10280252
NotesNameQTYNew Part Number
-5
(a)SCREW73D0005-08-10
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
25 of 83
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### Page 26

Group 2:
Kit SB10280252
NotesNameQTYNew Part Number
-5
(a)SCREW373D0005-08-8
(a)SCREW53D0005-3-22
(a)SCREW63D0005-3-26
(a)SCREW23D0005-3-28
(a)SCREW23D0005-3-8
(a)TERMINAL LUG 878135D0086-3
(a)TERMINAL LUG 76245D0086-6
(a)SEALING PLUG405D0206-20
IN-LINE FUSE2065053-220
BRACKET1ANN0012-1
SOCKET T/C 5243M39029/22-192
COVER ASSY1MS18029-6S8
RIVET4MS20470AD5-5D
NUT74MS21042L08
NUT2MS21042L3
CLAMP4MS21919WDG10
CLAMP6MS21919WDG3
CLAMP2MS21919WDG5
CLAMP2MS21919WDG7
TERMINAL BOARD1MS27212-6-8
LOCKWASHER37MS35338-42
LOCKWASHER2MS35338-43
WASHER6NAS1252-10H
WASHER46NAS1252-10L
WASHER7NAS1252-8H
WASHER118NAS1252-8L
SPACER5NAS43DD3-48FC
SPACER6NAS43DD3-64FC
SPACER2NAS43DD3-72FC
WASHER3NAS620A4
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
26 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 27

Group 2:
Kit SB10280252
NotesNameQTYNew Part Number
-5
BOLT3NAS7700-3
(a)CLAMP1S7934111-2SA
(a)CLAMP22S7934111-3SA
(a)CLAMP5S7934111-4SA
(a)CLAMP3S7934111-5SA
(a)CLAMP1S7934111-6SA
(a)CLAMP4S7934111-7SA
(a)CLAMP1S7934111-8SA
(a)CLAMP20S7934111-9SA
WIRE KIT1SR10280063-101
WIRE KIT1SR10280063-102
WIRE KIT1SR10280063-103
SLEEVING191 FT X
.166 I.D.
SR10280063-3 (DMS
2109, Type 1) or
equivalent
TIE TAPE50 YDSSR10280063-7 (DMS
2089) or equivalent
BRACKET2TA4012F21
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
Group 2:
Wire Kit SR10280063
NotesNameQTYQTYQTYNew Part Number
-103-102-101
WIRE CODE 80160 FT107 FT26 FTDC2426-1C-22NM (DMS
2426) or equivalent
SOCKET T/C 52413204M39029/22-192
(a)TERMINAL LUG 8781113-5D0086-3
(a)TERMINAL LUG 7622745D0086-6
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
27 of 83
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### Page 28

Group 3:
Kit SB10280252
NotesNameQTYNew Part Number
-7
(a)SCREW33D0005-08-10
(a)SCREW223D0005-08-8
(a)SCREW53D0005-3-26
(a)SCREW13D0005-3-28
(a)SCREW23D0005-3-8
(a)TERMINAL LUG 87895D0086-3
(a)SEALING PLUG245D0206-20
IN-LINE FUSE1265053-220
SOCKET T/C 5243M39029/22-192
NUT43MS21042L08
NUT2MS21042L3
CLAMP4MS21919WDG10
CLAMP6MS21919WDG3
CLAMP2MS21919WDG5
CLAMP2MS21919WDG7
LOCKWASHER27MS35338-42
LOCKWASHER2MS35338-43
WASHER6NAS1252-10H
WASHER24NAS1252-10L
WASHER3NAS1252-8H
WASHER47NAS1252-8L
SPACER5NAS43DD3-64FC
SPACER1NAS43DD3-72FC
(a)CLAMP12S7934111-3SA
(a)CLAMP12S7934111-9SA
WIRE KIT1SR10280063-111
WIRE KIT1SR10280063-113
SLEEVING125 FT X
.166 I.D.
SR10280063-3 (DMS 2109,
Type 1) or equivalent
TIE TAPE50 YDSSR10280063-7 (DMS 2089) or
equivalent
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
28 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 29

Group 3:
Kit SB10280252
NotesNameQTYNew Part Number
-7
BRACKET2TA4012F21
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
Group 3:
Wire Kit SR10280063
NotesNameQTYQTYNew Part Number
-113-111
WIRE CODE 80148 FT69 FTDC2426-1C-22NM (DMS
2426) or equivalent
SOCKET T/C 524912M39029/22-192
(a)TERMINAL LUG 8789125D0086-3
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
Group 4:
Kit SB10280252
NotesNameQTYNew Part Number
-9
(a)SCREW143D0005-08-10
(a)SCREW273D0005-08-8
(a)SCREW43D0005-3-22
(a)SCREW53D0005-3-26
(a)SCREW23D0005-3-28
(a)SCREW23D0005-3-8
(a)TERMINAL LUG 87895D0086-3
(a)SEALING PLUG465D0206-20
IN-LINE FUSE2365053-220
(a)BRACKET29D0062-3-12-08
(a)BRACKET39D0230-1D080624
SOCKET T/C 52414M39029/22-192
RIVET10MS20470AD4-5D
NUT60MS21042L08
NUT2MS21042L3
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
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29 of 83
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### Page 30

Group 4:
Kit SB10280252
NotesNameQTYNew Part Number
-9
CLAMP4MS21919WDG10
CLAMP6MS21919WDG3
CLAMP2MS21919WDG5
CLAMP2MS21919WDG7
LOCKWASHER27MS35338-42
LOCKWASHER2MS35338-43
WASHER6NAS1252-10H
WASHER40NAS1252-10L
WASHER8NAS1252-8H
WASHER101NAS1252-8L
SPACER4NAS43DD3-48FC
SPACER5NAS43DD3-64FC
SPACER2NAS43DD3-72FC
(a)CLAMP2S7934111-10SA
(a)CLAMP2S7934111-11SA
(a)CLAMP11S7934111-3SA
(a)CLAMP3S7934111-4SA
(a)CLAMP3S7934111-7SA
(a)CLAMP3S7934111-8SA
(a)CLAMP25S7934111-9SA
WIRE KIT1SR10280063-105
WIRE KIT1SR10280063-107
WIRE KIT1SR10280063-112
WIRE KIT1SR10280063-113
SLEEVING170 FT X
.166 I.D.
SR10280063-3 (DMS 2109, Type
1) or equivalent
SLEEVING15 FT X
.187 I.D.
SR10280063-5 (DMS 2379, Type
4, Class 4) or equivalent
TIE TAPE50 YDSSR10280063-7 (DMS 2089) or
equivalent
BRACKET2TA4012F21
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
30 of 83
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### Page 31

Group 4:
Kit SB10280252
NotesNameQTYNew Part Number
-9
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
Group 4:
Wire Kit SR10280063
NotesNameQTYQTYQTYQTYNew Part Number
-113-112-107-105
WIRE CODE 801--14 FT-DC2426-1C-20NM
(DMS 2426) or equiv-
alent
WIRE CODE 80148 FT74 FT21 FT43 FTDC2426-1C-22NM
(DMS 2426) or equiv-
alent
SOCKET T/C 52491355M39029/22-192
(a)PIN T/C 601/701--5-S00023-20P
(a)TERMINAL LUG 878913-55D0086-3
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
Group 5:
Kit SB10280252
NotesNameQTYNew Part Number
-11
(a)SCREW163D0005-08-10
(a)SCREW273D0005-08-8
(a)SCREW43D0005-3-22
(a)SCREW53D0005-3-26
(a)SCREW23D0005-3-28
(a)SCREW23D0005-3-8
(a)TERMINAL LUG 87895D0086-3
(a)SEALING PLUG505D0206-20
IN-LINE FUSE2565053-220
(a)BRACKET29D0062-3-12-08
(a)BRACKET49D0230-1D080624
SOCKET T/C 52416M39029/22-192
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
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### Page 32

Group 5:
Kit SB10280252
NotesNameQTYNew Part Number
-11
RIVET12MS20470AD4-5D
NUT62MS21042L08
NUT2MS21042L3
CLAMP4MS21919WDG10
CLAMP6MS21919WDG3
CLAMP2MS21919WDG5
CLAMP2MS21919WDG7
LOCKWASHER27MS35338-42
LOCKWASHER2MS35338-43
WASHER6NAS1252-10H
WASHER40NAS1252-10L
WASHER8NAS1252-8H
WASHER105NAS1252-8L
SPACER4NAS43DD3-48FC
SPACER5NAS43DD3-64FC
SPACER2NAS43DD3-72FC
(a)CLAMP2S7934111-10SA
(a)CLAMP3S7934111-12SA
(a)CLAMP11S7934111-3SA
(a)CLAMP3S7934111-4SA
(a)CLAMP3S7934111-7SA
(a)CLAMP3S7934111-8SA
(a)CLAMP27S7934111-9SA
WIRE KIT1SR10280063-105
WIRE KIT1SR10280063-108
WIRE KIT1SR10280063-112
WIRE KIT1SR10280063-113
SLEEVING182 FT X
.166 I.D.
SR10280063-3 (DMS 2109, Type
1) or equivalent
SLEEVING20 FT X
.187 I.D.
SR10280063-5 (DMS 2379, Type
4 Class 4) or equivalent
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
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### Page 33

Group 5:
Kit SB10280252
NotesNameQTYNew Part Number
-11
TIE TAPE50 YDSSR10280063-7 (DMS 2089) or
equivalent
BRACKET2TA4012F21
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
Group 5:
Wire Kit SR10280063
NotesNameQTYQTYQTYQTYNew Part Number
-113-112-108-105
WIRE CODE 801--14 FT-DC2426-1C-20NM
(DMS 2426) or equiva-
lent
WIRE CODE 80148 FT74 FT35 FT43 FTDC2426-1C-22NM
(DMS 2426) or equiva-
lent
SOCKET T/C 52491375M39029/22-192
(a)PIN T/C 601/701--7-S00023-20P
(a)TERMINAL LUG 878913-55D0086-3
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
Group 6:
Kit SB10280252
NotesNameQTYNew Part Number
-13
(a)SCREW83D0005-08-10
(a)SCREW43D0005-08-12
(a)SCREW303D0005-08-8
(a)SCREW13D0005-3-22
(a)SCREW63D0005-3-26
(a)SCREW13D0005-3-28
(a)SCREW23D0005-3-8
(a)TERMINAL LUG 878135D0086-3
(a)SEALING PLUG345D0206-20
IN-LINE FUSE1765053-220
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
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### Page 34

Group 6:
Kit SB10280252
NotesNameQTYNew Part Number
-13
(a)BRACKET29D0062-3F08-10
SOCKET T/C 5244M39029/22-192
RIVET4MS20470AD4-5D
NUT69MS21042L08
NUT2MS21042L3
CLAMP4MS21919WDG10
CLAMP6MS21919WDG3
CLAMP2MS21919WDG5
CLAMP2MS21919WDG7
LOCKWASHER30MS35338-42
LOCKWASHER2MS35338-43
WASHER6NAS1252-10H
WASHER30NAS1252-10L
WASHER3NAS1252-8H
WASHER115NAS1252-8L
SPACER1NAS43DD3-48FC
SPACER6NAS43DD3-64FC
SPACER1NAS43DD3-72FC
(a)CLAMP5NMC1001-1
(a)CLAMP3NMC1001-2
(a)CLAMP15S7934111-3SA
(a)CLAMP4S7934111-7SA
(a)CLAMP17S7934111-9SA
WIRE KIT1SR10280063-104
WIRE KIT1SR10280063-106
WIRE KIT1SR10280063-109
WIRE KIT1SR10280063-110
WIRE KIT1SR10280063-111
WIRE KIT1SR10280063-113
SLEEVING160 FT X
.166 I.D.
SR10280063-3 (DMS 2109, Type
1) or equivalent
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
34 of 83
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### Page 35

Group 6:
Kit SB10280252
NotesNameQTYNew Part Number
-13
SLEEVING10 FT X
.187 I.D.
SR10280063-5 (DMS 2379, Type
4, Class 4) or equivalent
TIE TAPE50 YDSSR10280063-7(DMS 2089) or
equivalent
BRACKET2TA4012F21
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
Group 6:
Wire Kit SR10280063
NotesNameQTYQTYQTYQTYQTYQTYNew Part Number
-113-111-110-109-106-104
WIRE CODE 80148 FT69 FT14 FT14 FT28 FT7 FTDC2426-1C-22NM
(DMS 2426) or
equivalent
SOCKET T/C 5249122241M39029/22-192
(a)TERMINAL LUG 87891222415D0086-3
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
Group 7:
Kit SB10280252
NotesNameQTYNew Part Number
-15
(a)SCREW33D0005-08-10
(a)SCREW293D0005-08-8
(a)SCREW13D0005-3-22
(a)SCREW63D0005-3-26
(a)SCREW13D0005-3-28
(a)SCREW23D0005-3-8
(a)TERMINAL LUG 878105D0086-3
(a)SEALING PLUG285D0206-20
IN-LINE FUSE1465053-220
SOCKET T/C 5244M39029/22-192
NUT53MS21042L08
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1: January 06, 2010
35 of 83
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### Page 36

Group 7:
Kit SB10280252
NotesNameQTYNew Part Number
-15
NUT2MS21042L3
CLAMP4MS21919WDG10
CLAMP6MS21919WDG3
CLAMP2MS21919WDG5
CLAMP2MS21919WDG7
LOCKWASHER24MS35338-42
LOCKWASHER2MS35338-43
WASHER6NAS1252-10H
WASHER30NAS1252-10L
WASHER3NAS1252-8H
WASHER85NAS1252-8L
SPACER1NAS43DD3-48FC
SPACER6NAS43DD3-64FC
SPACER1NAS43DD3-72FC
(a)CLAMP15S7934111-3SA
(a)CLAMP4S7934111-7SA
(a)CLAMP14S7934111-9SA
WIRE KIT1SR10280063-104
WIRE KIT1SR10280063-110
WIRE KIT1SR10280063-111
WIRE KIT1SR10280063-113
SLEEVING140 FT X
.166 I.D.
SR10280063-3 (DMS 2109, Type
1) or equivalent
TIE TAPE50 YDSSR10280063-7 (DMS 2089) or
equivalent
BRACKET2TA4012F21
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
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Group 7:
Wire Kit SR10280063
NotesNameQTYQTYQTYQTYNew Part Number
-113-111-110-104
WIRE CODE 80148 FT69 FT14 FT7 FTDC2426-1C-22NM
(DMS 2426) or
equivalent
SOCKET T/C 52491221M39029/22-192
(a)TERMINAL LUG 878912215D0086-3
(a) Or approved equivalent, refer to AEPL, Drawing 7595071.
2. Parts and Materials Supplied by the Operator:
None.
3. Parts Modified and Reidentified:
None.
4. Parts Removed and Not Replaced:
None.
D. Parts Necessary to Change Spares
None
E. Special Tooling - Price and Availability
None.
F. Special Tooling Necessary to do this Service Bulletin
No special tools or equipment are necessary to do the change in this service bulletin. But, maintenance
and overhaul tools in the manuals given in Paragraph 1.J., References, can be necessary. Examine
operator tool supply to make sure all necessary tools are available.
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BLANK PAGE

### Page 39

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.
WARNING: WHILE YOU DO WORK IN THE TAILCONE AREA, MAKE SURE THAT YOU OBEY
ALL SAFETY PRECAUTIONS. IF YOU DO NOT OBEY THE PRECAUTIONS, DEATH
OR INJURY TO PERSONS 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: ELECTRICALLY GROUND THE AIRPLANE. THIS WILL HELP TO PREVENT DAMAGE
TO THE AIRPLANE OR EQUIPMENT.
NOTE: 1. The instructions identified in Paragraph 3.B., Work Instructions give the recommended
sequence of steps. The sequence of steps to do this service bulletin can be changed.
2. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for
definition of the acronyms.
3. Equivalent parts are listed in the AEPL, Drawing 7595071.
4. Use the approved fastener and process material substitutions, DC-10, MD-10 SRM
51.
5. Any protrusion of threads is acceptable provided that the threads do not rub or ride
against nearby wire assemblies or components.
6. A 1/8-inch thick stack of the same type washers called for in this service bulletin is
the maximum thickness which may be used under fastener head or nut to counteract
accumulation of tolerances.
EXCEPTION: When the available fastener length increments are greater than
1/16-inch, a 3/16-inch thick stack of the same type washers may be used.
7. Refer to the following Standard Wiring Practices Manual (SWPM) chapters for
applicable operation:
OperationChapter
General - Maintenance Safety PracticesSWPM 20-00-00
Electrical Identification and Shop PracticesSWPM 20-00-09
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Electrical Wire CodesSWPM 20-00-13
Electrical Wire End Termination CodesSWPM 20-00-16
Fabricating and Installing Wire Harness -
Commercial
SWPM 20-10-01
Coil and Stow - Maintenance PracticesSWPM 20-10-04
Terminal Blocks - Maintenance PracticesSWPM 20-20-02
General Installation Hardwares - Maintenance
Practices
SWPM 20-20-03
Power Distribution Bus - Maintenance Prac-
tice
SWPM 20-40-01
8. Obey all of the warnings and cautions given in the specified manual sections as
applicable.
9. Review and understand all general notes of Service Rework Drawing SR10280063
sheets 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10, and 7 before start of
modification.
10. These work instructions refer to procedures included on 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:
1. Make fuel system safe for maintenance. Refer to MD-10 AMM 28-43-01 as an accepted procedure.
2. Gain access to area of modification, refer to Table below:
Refer toName/LocationPanel Number
MD-10 AMM 06-35-00Access Panel Left
Wing Leading Edge
and Vent Box
516AB, 516EB, 526DB, 527AB,
537AB
MD-10 AMM 06-36-00Access Panel Right
Wing Leading Edge
and Vent Box
616AB, 616EB, 626DB, 627AB,
637AB
3. Install fuel tank float level switch In-line fuses, in the locations shown below relative to appendices:
In Accordance with AppendixLocation
AFuel Tank 1
CFuel Tank 2
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In Accordance with AppendixLocation
FFuel Tank 3
4. Do return-to-service test of fuel tank float level or pressure switches in accordance with Appendix
N.
5. Close access to area of modification.
6. Put the airplane back to a serviceable condition.
Group 2:
1. Make fuel system safe for maintenance. Refer to MD-10 AMM 28-43-01 as an accepted procedure.
2. Gain access to area of modification, refer to Table below:
Refer toName/LocationPanel Number
MD-10 AMM 06-35-00Access Panel Left
Wing Leading Edge
and Vent Box
516AB, 516EB, 526DB, 527AB,
537AB
MD-10 AMM 06-36-00Access Panel Right
Wing Leading Edge
and Vent Box
616AB, 616EB, 626DB, 627AB,
637AB
MD-10 AMM 06-27-00Right Main Landing
Gear Wheel Well
Right Main Landing Gear Door
3. Install fuel tank float level switch In-line fuses, in the locations shown below relative to appendices:
In Accordance with AppendixLocation
AFuel Tank 1
CFuel Tank 2
FFuel Tank 3
HUpper and Lower Auxiliary Fuel Tanks
4. Do return-to-service test of fuel tank float level or pressure switches in accordance with Appendix
O.
5. Close access to area of modification.
6. Put the airplane back to a serviceable condition.
Group 3:
1. Make fuel system safe for maintenance. Refer to DC-10 AMM 28-43-01 as an accepted procedure.
2. Gain access to area of modification, refer to Table below:
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### Page 42

Refer toName/LocationPanel Number
DC-10 AMM 06-35-00Access Panel Left
Wing Leading Edge
and Vent Box
516AB, 516EB, 526DB, 527AB,
537AB
DC-10 AMM 06-36-00Access Panel Right
Wing Leading Edge
and Vent Box
616AB, 616EB, 626DB, 627AB,
637AB
3. Install fuel tank float level switch In-line fuses, in the locations shown below relative to appendices:
In Accordance with AppendixLocation
BFuel Tank 1
DFuel Tank 2
GFuel Tank 3
4. Do return-to-service test of fuel tank float level or pressure switches in accordance with Appendix
P.
5. Close access to area of modification.
6. Put the airplane back to a serviceable condition.
Group 4:
1. Make fuel system safe for maintenance. Refer to DC-10 AMM 28-43-01 as an accepted procedure.
2. Gain access to area of modification, refer to Table below:
Refer toName/LocationPanel Number
DC-10 AMM 06-35-00Access Panel Left
Wing Leading Edge
and Vent Box
516AB, 516EB, 526DB, 527AB,
537AB
DC-10 AMM 06-36-00Access Panel Right
Wing Leading Edge
and Vent Box
616AB, 616EB, 626DB, 627AB,
637AB
DC-10 AMM 06-27-00Right Main Landing
Gear Wheel Well
Right Main Landing Gear Door
DC-10 AMM 06-21-00Center Cargo Com-
partment
Center Cargo Compartment Door
3. Install fuel tank float level and pressure switch In-line fuses, in the locations shown below relative
to appendices:
In Accordance with AppendixLocation
BFuel Tank 1
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In Accordance with AppendixLocation
EFuel Tank 2
GFuel Tank 3
KAft Auxiliary Fuel Tank
LUpper and Lower Auxiliary Fuel Tanks
4. Do return-to-service test of fuel tank float level or pressure switches in accordance with Appendix
Q.
5. Close access to area of modification.
6. Put the airplane back to a serviceable condition.
Group 5:
1. Make fuel system safe for maintenance. Refer to DC-10 AMM 28-43-01 as an accepted procedure.
2. Gain access to area of modification, refer to Table below:
Refer toName/LocationPanel Number
DC-10 AMM 06-35-00Access Panel Left
Wing Leading Edge
and Vent Box
516AB, 516EB, 526DB, 527AB,
537AB
DC-10 AMM 06-36-00Access Panel Right
Wing Leading Edge
and Vent Box
616AB, 616EB, 626DB, 627AB,
637AB
DC-10 AMM 06-27-00Right Main Landing
Gear Wheel Well
Right Main Landing Gear Door
DC-10 AMM 06-21-00Center Cargo Com-
partment
Center Cargo Compartment Door
3. Install fuel tank float level and pressure switch In-line fuses, in the locations shown below relative
to appendices:
In Accordance with AppendixLocation
BFuel Tank 1
EFuel Tank 2
GFuel Tank 3
LUpper and Lower Auxiliary Fuel Tanks
MAft Auxiliary Fuel Tank
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### Page 44

4. Do return-to-service test of fuel tank float level or pressure switches in accordance with Appendix
R.
5. Close access to area of modification.
6. Put the airplane back to a serviceable condition.
Group 6:
1. Make fuel system safe for maintenance. Refer to DC-10 AMM 28-43-01 as an accepted procedure.
2. Gain access to area of modification, refer to Table below:
Refer toName/LocationPanel Number
DC-10 AMM 06-35-00Access Panels Left Wing
Leading Edge and Vent
Box
510KB, 510PB, 520KB,
520RB, 530JB
DC-10 AMM 06-36-00Access Panels Right Wing
Leading Edge and Vent
Box
610KB, 610PB, 620KB,
620RB, 630JB
DC-10 AMM 06-27-00Left and Right Main Land-
ing Gear Wheel Wells
Left and Right Main Landing
Gear Doors
DC-10 AMM 06-32-09Mid Passenger Compart-
ment Floor panel, and
Float Switch Cover
AZZ7656-1, AAL7173-1
DC-10 AMM 06-32-11Aft Auxiliary fuel tank pan-
els, Float Switch Cover
and Aft Passenger Com-
partment Floor panel
(ARO Hatch),
AWE9267-503, AWE9270-
517, AAL7173-1 and 291HF,
3. Install fuel tank float level switch In-line fuses, in the locations shown below relative to appendices:
In Accordance with AppendixLocation
BFuel Tank 1
DFuel Tank 2
GFuel Tank 3
ICenter Wing Fuel Tanks
JForward and Aft Auxiliary Fuel Tank
4. Do return-to-service test of fuel tank float level or pressure switches in accordance with Appendix
S.
5. Close access to area of modification.
6. Put the airplane back to a serviceable condition.
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### Page 45

Group 7:
1. Make fuel system safe for maintenance. Refer to DC-10 AMM 28-43-01 as an accepted procedure.
2. Gain access to area of modification, refer to Table below:
Refer toName/LocationPanel Number
DC-10 AMM 06-35-00Access Panels Left
Wing Leading Edge
and Vent Box
510KB, 510PB, 520KB, 520RB,
530JB
DC-10 AMM 06-36-00Access Panels Right
Wing Leading Edge
and Vent Box
610KB, 610PB, 620KB, 620RB,
630JB
DC-10 AMM 06-27-00Left and Right Main
Landing Gear Wheel
Wells
Left and Right Main Landing Gear
Doors
3. Install fuel tank float level switch In-line fuses, in the locations shown below relative to appendices:
In Accordance with AppendixLocation
BFuel Tank 1
DFuel Tank 2
GFuel Tank 3
ICenter Wing Fuel Tanks
4. Do return-to-service test of fuel tank float level or pressure switches in accordance with Appendix
T.
5. Close access to area of modification.
6. Put the airplane back to a serviceable condition.
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### Page 46

This Appendix applies only to: Group 1-2.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing SR10280063 sheets
10, 11, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.14, 102.201 and 304.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-119 within
float level switch reference designator
S1-119 wiring.
1
In accordance with Drawing SR10280063 sheets
10, 15, 15.1, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7,
3.8, 3.9, 7, 9.13, 9.14, 102.201, 302.201 and
304.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-120 within
float level switch reference designator
S1-120 wiring.
2
Install fuel tank float level switch In-line
fuse, reference designator F1-121 within
float level switch reference designator
S1-121 wiring.
3
In accordance with Drawing SR10280063 sheets
10, 15, 15.1, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7,
3.8, 3.9, 7, 9.13, 9.15, 102.201, 302.201 and
304.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-176 within
float level switch reference designator
S1-176 wiring.
4
In accordance with Drawing SR10280063 sheets
10, 14, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.15, 102.201 and 302.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1391
within float level switch reference desig-
nator S1-1391 wiring.
5
In accordance with Drawing SR10280063 sheets
10, 13, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.15, 102.201 and 305.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1392
within float level switch reference desig-
nator S1-1392 wiring.
6
In accordance with Drawing SR10280063 sheets
10, 12, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.16, 102.201 and 304.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-735 within
float level switch reference designator
S1-735 wiring.
7
Appendix A: FUEL TANK 1 - MD-10-10F AND MD-10-30F
(SHEET 1 OF 1)
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### Page 47

This Appendix applies only to: Group 3-7.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing SR10280063 sheets
10, 11, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.21, 111.201 or 112.201 and 310.201,
311.203 312.202 or 313.202.
Install fuel tank float level switch In-line
fuse, reference designator F1-119 within
float level switch reference designator
S1-119 wiring.
1
In accordance with Drawing SR10280063 sheets
10, 15, 15.1, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7,
3.8, 3.9, 7, 9.13, 9.21, 111.201 or 112.201 and
307.201, 310.201, 311.202, 312.202 or 313.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-120 within
float level switch reference designator
S1-120 wiring.
2
In accordance with Drawing SR10280063 sheets
10, 15, 15.1, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7,
3.8, 3.9, 7, 9.13, 9.21, 111.201 or 112.201 and
310.201, 311.202, 312.202 or 313.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-121 within
float level switch reference designator
S1-121 wiring.
3
In accordance with Drawing SR10280063 sheets
10, 15, 15.1, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7,
3.8, 3.9, 7, 9.13, 9.22, 111.201 or 112.201 and
307.201, 310.201, 312.202 or 313.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-176 within
float level switch reference designator
S1-176 wiring.
4
In accordance with Drawing SR10280063 sheets
10, 12, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.22, 111.201 or 112.201 and 310.201 or
311.203 or 312.202 or 313.202.
Install fuel tank float level switch In-line
fuse, reference designator F1-735 within
float level switch reference designator
S1-735 wiring.
5
Appendix B: FUEL TANK 1 - DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30 W/AFT TANK 1500 AND
3200 GALLONS, DC-10-30F, DC-10-30F (KC-10A), DC-10-30F (KDC-10), DC-10-40, DC-10-40F
(SHEET 1 OF 1)
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### Page 48

This Appendix applies only to: Group 1-2.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing SR10280063
sheets 16, 16.5, 3, 3.1, 3.3, 3.5, 3.6, and 3.9.
Install new Terminal Board, item number
S3-454.
1
In accordance with Drawing SR10280063
sheets 10, 16, 16.3, 3, 3.1, 3.2, 3.3, 3.4, 3.5,
3.6, 3.7, 3.8, 3.9, 7, 9.13, 9.16, 102.201 and
304.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-90 within
float level switch reference designator S1-
90 wiring.
2
Install fuel tank float level switch In-line
fuse, reference designator F1-177 within
float level switch reference designator S1-
177 wiring.
3
In accordance with Drawing SR10280063
sheets 10, 16, 16.3, 16.4, 3, 3.1, 3.2, 3.3, 3.4,
3.5, 3.6, 3.7, 3.8, 3.9, 7, 9.13, 9.17, 102.201
and 305.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1363 within
float level switch reference designator S1-
1363 wiring.
4
Install fuel tank float level switch In-line
fuse, reference designator F1-1393 within
float level switch reference designator S1-
1393 wiring.
5
Appendix C: FUEL TANK 2 - MD-10-10F AND MD-10-30F
(SHEET 1 OF 1)
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### Page 49

This Appendix applies only to: Group 3, 6-7.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing SR10280063
sheets 10, 16, 16.1, 3, 3.1, 3.2, 3.4, 3.5, 3.6,
3.7, 3.8, 3.9, 7, 9.13, 9.22, 111.201 and
310.201 or 313.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-90 within
float level switch reference designator S1-
90 wiring.
1
In accordance with Drawing SR10280063
sheets 10, 16, 16.1, 3, 3.1, 3.4, 3.5, 3.6, 3.7,
3.8, 3.9, 7, 9.13, 9.23, 111.201 and 310.201
or 313.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-177 within
float level switch reference designator S1-
177 wiring.
2
Appendix D: FUEL TANK 2 - DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F, DC-10-30F (KC-10A),
DC-10-30F (KDC-10), DC-10-40, DC-10-40F
(SHEET 1 OF 1)
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### Page 50

This Appendix applies only to: Group 4-5.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing SR10280063
sheets 10, 16, 16.2, 3, 3.1, 3.2, 3.4, 3.5, 3.6,
3.7, 3.8, 3.9, 7, 9.13, 9.22, 112.201 and
311.201 or 312.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-90 within
float level switch reference designator S1-
90 wiring.
1
In accordance with Drawing SR10280063
sheets 10, 16, 16.2, 3, 3.1, 3.3, 3.4, 3.5, 3.6,
3.7, 3.8, 3.9, 7, 9.13, 9.23, 112.201 and
311.202 or 312.202.
Install fuel tank float level switch In-line
fuse, reference designator F1-177 within
float level switch reference designator S1-
177 wiring.
2
In accordance with Drawing SR10280063
sheets 10, 16, 16.2, 3, 3.1, 3.3, 3.4, 3.5, 3.6,
3.7, 3.8, 3.9, 7, 9.13, 9.23, 112.201 and
311.201 or 312.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1363 within
float level switch reference designator S1-
1363 wiring.
3
Appendix E: FUEL TANK 2 - DC-10-30 W/AFT TANK 1500 AND 3200 GALLONS
(SHEET 1 OF 1)
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### Page 51

This Appendix applies only to: Group 1-2.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing SR10280063 sheets
10, 17, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.17, 103.201 and 304.202.
Install fuel tank float level switch In-line
fuse, reference designator F1-124
within level switch reference designator
S1-124 wiring.
1
In accordance with Drawing SR10280063 sheets
10, 21, 21.1, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8,
3.9, 7, 9.13, 9.18, 103.201 and 304.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-122
within float level switch reference desig-
nator S1-122 wiring.
2
In accordance with Drawing SR10280063 sheets
10, 21, 21.1, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8,
3.9, 7, 9.13, 9.18, 103.201, 303.201 and 304.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-123
within float level switch reference desig-
nator S1-123 wiring.
3
In accordance with Drawing SR10280063 sheets
10, 21, 21.1, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8,
3.9, 7, 9.13, 9.18, 103.201 and 303.201 or
304.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-178
within float level switch reference desig-
nator S1-178 wiring.
4
In accordance with Drawing SR10280063 sheets
10, 20, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.19, 103.201 and 303.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1394
within float level switch reference desig-
nator S1-1394 wiring.
5
In accordance with Drawing SR10280063 sheets
10, 19, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.19, 103.201 and 305.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1395
within float level switch reference desig-
nator S1-1395 wiring.
6
In accordance with Drawing SR10280063 sheets
10, 18, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.19, 103.201 and 304.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-734
within float level switch reference desig-
nator S1-734 wiring.
7
Appendix F: FUEL TANK 3 - MD-10-10F AND MD-10-30F
(SHEET 1 OF 1)
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1 January 06, 2010
51 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 52

This Appendix applies only to: Group 3-7.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing SR10280063 sheets
10, 17, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.23, 113.201 and 310.202, 311.203,
312.203 or 313.202.
Install fuel tank float level switch In-line
fuse, reference designator F1-124
within level switch reference designator
S1-124 wiring.
1
In accordance with Drawing SR10280063 sheets
10, 21, 21.1, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8,
3.9, 7, 9.13, 9.24, 113.201 and 310.201, 311.202,
312.202 or 313.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-122
within float level switch reference desig-
nator S1-122 wiring.
2
In accordance with Drawing SR10280063 sheets
10, 21, 21.1, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8,
3.9, 7, 9.13, 9.24, 113.201 and 308.201, 310.201,
311.202, 312.202 or 313.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-123
within float level switch reference desig-
nator S1-123 wiring.
3
In accordance with Drawing SR10280063 sheets
10, 21, 21.1, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8,
3.9, 7, 9.13, 9.24, 113.201 and 308.201, 310.201,
311.202, 312.202 or 313.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-178
within float level switch reference desig-
nator S1-178 wiring.
4
In accordance with Drawing SR10280063 sheets
10, 18, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.25, 113.201 and 310.201, 311.202,
312.202 or 313.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-734
within float level switch reference desig-
nator S1-734 wiring.
5
Appendix G: FUEL TANK 3 - DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30 W/AFT TANK 1500 AND
3200 GALLONS, DC-10-30F, DC-10-30F (KC-10A), DC-10-30F (KDC-10), DC-10-40, DC-10-40F
(SHEET 1 OF 1)
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1 January 06, 2010
52 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 53

This Appendix applies only to: Group 2.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing
SR10280063 sheets 10, 22, 3, 3.1, 3.2,
3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7, 9.13,
9.20, 101.201 and 301.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1359 within
float level switch reference designator S1-
1359 wiring.
1
In accordance with Drawing
SR10280063 sheets 10, 23.1, 3, 3.1,
3.2, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10, 7,
9.13, 9.20, 101.201 and 301.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1360 within
float level switch reference designator S1-
1360 wiring.
2
Appendix H: UPPER AND LOWER AUXILIARY FUEL TANKS - MD-10-30F
(SHEET 1 OF 1)
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1 January 06, 2010
53 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 54

This Appendix applies only to: Group 6-7.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing SR10280063
sheets 10, 24, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7,
3.8, 3.9, 7, 9.13, 9.30, 104.201 and 313.201
Install fuel tank float level switch In-line
fuse, reference designator F1-1328 within
float level switch reference designator S1-
1328 wiring.
1
In accordance with Drawing SR10280063
sheets 10, 24.1, 3, 3.1, 3.4, 3.5, 3.6, 3.7, 3.8,
3.9, 7, 9.13, 9.30, 110.201 and 313.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1374 within
float level switch reference designator S1-
1374 wiring.
2
Appendix I: CENTER WING TANKS - DC-10-30F (KC-10A) AND DC-10-30F (KDC-10)
(SHEET 1 OF 1)
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1 January 06, 2010
54 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 55

This Appendix applies only to: Group 6.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing SR10280063 sheets
10, 25, 25.1, 25.2, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7,
3.8, 3.9, 7, 9.13, 9.31, 106.201 and 306.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1277
within level switch reference designator
S1-1277 wiring.
1
Install fuel tank float level switch In-line
fuse, reference designator F1-1293
within float level switch reference desig-
nator S1-1293 wiring.
2
In accordance with Drawing SR10280063 sheets
10, 26, 26.1, 26.2, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7,
3.8, 3.9, 7, 9.13, 9.31, 109.201 and 309.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1327
within float level switch reference desig-
nator S1-1327 wiring.
3
Appendix J: FORWARD AND AFT AUXILIARY - DC-10-30F (KC-10A)
(SHEET 1 OF 1)
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1 January 06, 2010
55 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 56

This Appendix applies only to: Group 4.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing SR10280063
sheets 10, 27, 27.1, 27.3, 27.4, 3, 3.1, 3.3,
3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7, 9.13, 9.27,
107.201 and 312.202.
Install fuel tank pressure switch In-line
fuse, reference designator F1-972
within pressure switch reference desig-
nator S1-972 wiring.
1
In accordance with Drawing SR10280063
sheets 10, 27, 27.1, 27.3, 27.4, 3, 3.1, 3.3,
3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7, 9.13, 9.27,
107.201 and 312.201.
Install fuel tank pressure switch In-line
fuse, reference designator F1-973
within pressure switch reference desig-
nator S1-973 wiring.
2
In accordance with Drawing SR10280063
sheets 10, 27, 27.1, 27.4, 3, 3.1, 3.3, 3.4,
3.5, 3.6, 3.7, 3.8, 3.9, 7, 9.13, 9.27,
107.201 and 312.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1361
within float level switch reference desig-
nator S1-1361 wiring.
3
In accordance with Drawing SR10280063
sheets 10, 27, 27.1, 27.4, 3, 3.1, 3.3, 3.4,
3.5, 3.6, 3.7, 3.8, 3.9, 7, 9.13, 9.28,
107.201 and 312.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1362A
within float level switch reference desig-
nator S1-1362 wiring.
4
Install fuel tank float level switch In-line
fuse, reference designator F1-1362B
within float level switch reference desig-
nator S1-1362 wiring.
5
Appendix K: AFT AUXILIARY FUEL TANK - DC-10-30 W/AFT TANK 1500 GALLONS
(SHEET 1 OF 1)
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1 January 06, 2010
56 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 57

This Appendix applies only to: Group 4-5.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing
SR10280063 sheets 10, 22.1, 22.2, 3,
3.1, 3.2, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.26, 105.201 and 311.201 or
312.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1358 within
float level switch reference designator S1-
1358 wiring.
1
In accordance with Drawing
SR10280063 sheets 10, 22.1, 22.2, 3,
3.1, 3.2, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.26, 105.201 and 311.202 or
312.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1364 within
float level switch reference designator S1-
1364 wiring.
2
In accordance with Drawing
SR10280063 sheets 10, 22.1, 22.2, 3,
3.1, 3.2, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.26, 105.201 and 311.201 or
312.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1376 within
float level switch reference designator S1-
1376 wiring.
3
In accordance with Drawing
SR10280063 sheets 10, 22.1, 22.2, 3,
3.1, 3.2, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7,
9.13, 9.25, 105.201 and 311.201 or
312.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1359 within
float level switch reference designator S1-
1359 wiring.
4
In accordance with Drawing
SR10280063 sheets 10, 23, 3, 3.1, 3.2,
3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 7, 9.13, 9.25,
105.201 and 311.201 or 312.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1360 within
float level switch reference designator S1-
1360 wiring.
5
Appendix L: UPPER AND LOWER AUXILIARY TANKS - DC-10-30 W/AFT 1500 AND 3200 GALLONS
(SHEET 1 OF 1)
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1 January 06, 2010
57 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 58

This Appendix applies only to: Group 5.
MORE DATADESCRIPTION OF TASKSTEP
In accordance with Drawing
SR10280063 sheets 10, 27, 27.2, 27.3,
27.4, 3, 3.1, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9,
7, 9.13, 9.27, 108.201 and 311.202.
Install fuel tank pressure switch In-line
fuse, reference designator F1-972 within
pressure switch reference designator S1-
972 wiring.
1
Install fuel tank pressure switch In-line
fuse, reference designator F1-973 within
pressure switch reference designator S1-
973 wiring.
2
In accordance with Drawing
SR10280063 sheets 10, 27, 27.2, 27.3,
27.4, 3, 3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8,
3.9, 7, 9.13, 9.27, 108.201 and 311.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1361 within
float level switch reference designator S1-
1361 wiring.
3
In accordance with Drawing
SR10280063 sheets 10, 27, 27.2, 27.3,
27.4, 3, 3.1, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9,
7, 9.13, 9.29, 108.201 and 311.201.
Install fuel tank float level switch In-line
fuse, reference designator F1-1362 within
float level switch reference designator S1-
1362 wiring.
4
Install fuel tank float level switch In-line
fuse, reference designator F1-1365 within
float level switch reference designator S1-
1365 wiring.
5
Install fuel tank float level switch In-line
fuse, reference designator F1-1381A
within float level switch reference designa-
tor S1-1381 wiring.
6
Install fuel tank float level switch In-line
fuse, reference designator F1-1381B
within float level switch reference designa-
tor S1-1381 wiring.
7
Appendix M: AFT AUXILIARY FUEL TANK - DC-10-30 W/AFT 3200 GALLONS
(SHEET 1 OF 1)
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1 January 06, 2010
58 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 59

This Appendix applies only to: Group 1.
RETURN-TO SERVICE TEST OF THE FUEL TANKS FLOAT SWITCHES
This test can be performed for each fuse as it is installed.
REFERENCES (AMM) Tasks:
PAGE BLOCK MD-10 AMM 12-11-05 (12-11-05/301 - DEFUELING SERVICING)
This procedure should be used as necessary.
Depower the Fuse system or open the associated Circuit Breakers.
After fuse installation do a continuity test as shown in the table below.
Note: For some fuses check continuity between two pins, for others check continuity to ground.
REMARKSPINSTERMINALTEST TYPEFUSE TO BE TESTED
TANK 1
7 & 8S3-450LOOP CONTINUITYF1-176 - TANK 1 DUMP
6 & 2S3-450LOOP CONTINUITYF1-121 Tank 1 4000 lb
4 & 5S3-450LOOP CONTINUITYF1-120 Tank 1 6000 lb
1 & 2S3-1301LOOP CONTINUITYF1-1391 TK 1 INBD FULL
1 & 2S3-1300LOOP CONTINUITYF1-1392 TK 1 OUTBD FULL
1 & 2S3-366LOOP CONT NOT FULLF1-119 TK 1 TIP
1 & 2S3-684LOOP CONTINUITYF1-735 L WING OVERFILL (VENT BOX)
TANK 3
7 & 8S3-451LOOP CONTINUITYF1-178 - TANK 3 DUMP
6 & 2S3-451LOOP CONTINUITYF1-122 Tank 3 4000 lb
4 & 5S3-451LOOP CONTINUITYF1-123 Tank 3 6000 lb
1 & 2S3-1302LOOP CONTINUITYF1-1394 TK 3 INBD FULL
1 & 2S3-1303LOOP CONTINUITYF1-1395 TK 3 OUTBD FULL
1 & 2S3-452LOOP CONT NOT FULLF1-124 TK 3 TIP
1 & 2S3-683LOOP CONTINUITYF1-734 R WING OVERFILL (VENT BOX)
TANK 2
1 & 5S3-454LOOP CONTINUITYF1-177 TK 2 DUMP
2 & 6S3-454LOOP CONTINUITYF1-90 TK 2 40000 LB
3 & GNDS3-454EMPTY CONT TO GNDF1-1363 TK 2 10000 LB
7 & 4S3-454LOOP CONTINUITYF1-1393 TK 2 FULL
Appendix N: MD-10-10F - FUSE FUNCTIONAL TEST
(SHEET 1 OF 1)
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1 January 06, 2010
59 of 83
BOEING SERVICE BULLETIN DC10-28-252

### Page 60

This Appendix applies only to: Group 2.
RETURN-TO SERVICE TEST OF THE FUEL TANKS FLOAT SWITCHES
This test can be performed for each fuse as it is installed.
REFERENCES (AMM) Tasks:
PAGE BLOCK MD-10 AMM 12-11-05 (12-11-05/301 - DEFUELING SERVICING)
This procedure should be used as necessary.
Depower the Fuse system or open the associated Circuit Breakers.
After fuse installation do a continuity test as shown in the table below.
Note: For some fuses check continuity between two pins, for others check continuity to ground.
REMARKSPINSTERMINALTEST TYPEFUSE TO BE TESTED
TANK 1
7 & 8S3-450LOOP CONTINUITYF1-176 - TANK 1 DUMP
6 & 2S3-450LOOP CONTINUITYF1-121 Tank 1 4000 lb
4 & 5S3-450LOOP CONTINUITYF1-120 Tank 1 6000 lb
1 & 2S3-1301LOOP CONTINUITYF1-1391 TK 1 INBD FULL
1 & 2S3-1300LOOP CONTINUITYF1-1392 TK 1 OUTBD FULL
1 & 2S3-366LOOP CONT NOT FULLF1-119 TK 1 TIP
Vent Box1 & 2S3-684LOOP CONTINUITYF1-735 L WING OVERFILL
TANK 3
7 & 8S3-451LOOP CONTINUITYF1-178 - TANK 3 DUMP
6 & 2S3-451LOOP CONTINUITYF1-122 Tank 3 4000 lb
4 & 5S3-451LOOP CONTINUITYF1-123 Tank 3 6000 lb
1 & 2S3-1302LOOP CONTINUITYF1-1394 TK 3 INBD FULL
1 & 2S3-1303LOOP CONTINUITYF1-1395 TK 3 OUTBD FULL
1 & 2S3-452LOOP CONT NOT FULLF1-124 TK 3 TIP
Vent Box1 & 2S3-683LOOP CONTINUITYF1-734 R WING OVERFILL
TANK 2
1 & 5S3-454LOOP CONTINUITYF1-177 TK 2 DUMP
2 & 6S3-454LOOP CONTINUITYF1-90 TK 2 40000 LB
3S3-454EMPTY CONT TO GNDF1-1363 TK 2 10000 LB
7 & 4S3-454LOOP CONTINUITYF1-1393 TK 2 FULL
AUX TANKS
Appendix O: MD-10-30F - FUSE FUNCTIONAL TEST
(SHEET 1 OF 2)
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 25, 2008
DC10-28-252Revision 1 January 06, 2010
60 of 83
BOEING SERVICE BULLETIN DC10-28-252

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