REFERENCE:

BULLETIN 28-53

SUBJECT: FUEL - Indicating - Install

Low Fuel Pressure Indication

System.

COMPLIANCE: Douglas Aircraft Company

recommends accomplishment at the

earliest practical maintenance period.

ANALYSIS: One operator reported one

instance where 11,000 pounds of fuel

remained trapped in the center wing

fuel tank with 800 pounds of fuel

remaining in each main tank. The

excess fuel in the center wing fuel

tank has been attributed to failure

of a boost pump. Failure of a center

tank boost pump can result in premature

use of main tank fuel.

MANPOWER:

Total Man-Hours

Total Elapsed Hours

All Groups

295.3

49.2

MATERIAL INFORMATION: Parts required

may be purchased as a complete kit from

Douglas Aircraft Company, or may be

procured as indicated. (See paragraph

3.A of Service Bulletin 28-53.)

DESCRIPTION: All Groups - Accomplishes

the following: (1) Installs two low

fuel pressure switches and associated

tube assemblies on center wing fuel

tank boost pumps located between

stations Xcw -58.688 and Xcw -104.500.

(2) Installs a relay bracket, bus

assembly, relay, and receptacle in the

electrical power center (EPC) at

station Y-160.000. (3) Modifies

annunciator panel. (4) Revises aircraft

wiring to accommodate low fuel pressure

system. Incorporation of a low fuel

pressure indication system which

utilizes pressure switches and an

annunciator caution light will provide

timely indication of a failed boost

pump condition.

EFFECTIVITY: DC-9-81, -82, -83, and

-87 (MD-81, -82, -83, and -87); MD-88

aircraft. (See Service Bulletin 28-53

for detailed Effectivity.)

April 8/91 Reference Bulletin 28-53

Revision 1 April 16/92 Page 1 of I
FUEL - Indicating - Install Low Fuel Pressure Indication System.

This page transmits Revision 1 for MD-80 Service Bulletin 28-53 to incorporate

the following changes:

NOTE: This revision constitutes a complete reissue and reflects

current operators of affected aircraft at time of issue.

Reason for Revision: 1. To identify additional access requirements for

aircraft equipped with auxiliary fuel tanks.

2. To clarify Accomplishment Instructions which are

required for installation of correct structural

doublers.

No additional work is required by this revision for

aircraft modified per prior issue of this Service Bulletin.

Page 1: Changed page number to 1 of 29, was 1 of 31.

Page 10: Revised paragraph under Manpower.

Page 12: Added the following to References:

Data Identification Change Type of Data

SM09570003 G and H Advance E.O.

Changed the following in References:

Change

Data Identification Is Was Typ`e of Data

SR09280010 D C Service Rework Drawing

SR09280014 H F Service Rework Drawing

SR09280029 C A Advance E.O.

Changed service rework drawing number under paragraph 1.J.(5)

to SR09280026, was SR09570026.

April 8/91 Bulletin 28-53

Revision 1 April 16/92 Page 1 of 3
Page 13: Added paragraphs 1.L and 1.M.

Pages 16 Added new paragraph 2.B.(8).

and 17:

Revised paragraph 2.C as follows:

Added paragraph 2.C.(1) and 2.C.(6).

Changed the following part numbers:

SM09570003-11 SM09570003-3

SM09570003-13 SM09570003-5

Page 18: Revised paragraph 2.G for indication of legend plate to read

"CENTER FUEL PRESS LO", was 'FUEL LEVEL LOW."

Page 20: Added new paragraph 2.U. Reidentified subsequent paragraphs

accordingly.

Pages 22 Revised paragraph 3.A.(1).

thru 25:

Deleted Groups 11 through 14.

Added SB09280053-7 and -9 service kits to Groups 9 and 10.

Changed unit net prices to reflect current pricing policy.

Changed the following part numbers:

Is W

(YAE22-G15GN) (YAE22-G15-1)

5D0086-2 5D0086-5

(YAE22-G134GN) (YAE22-G13-1)

Revised part number quantities in SB09280053-11 fastener kit under

footnote i/.

Added part number HLT436-8-10 pin to SB09280053-11 fastener kit

under footnote 5/.

Bulletin 28-53 April 8/91

Page 2 Revision 1 April 16/92
Page 27: Added paragraph 3.A.(2). Reidentified subsequent paragraphs

accordingly.

Added legend plate to paragraph 3.A.(3). (Incorporation

of Service Bulletin Change Notification 28-53 CN1, dated

April 19/91.)

Revised paragraph 3.A.(4).

Pages 28 Revised paragraphs 3.A.(5), 3.A.(6), and 3.A.(7).

and 29:

Changed CAGE number to 98571, was 35012 under footnote 23/.

NOTE: Service Bulletin 28-53 Summary is attached.

RZV

LL-1

April 8/91

Revision 1 April 16/92

Bulletin 28-53

Page 3
BULLETIN 28-53

QITE

This Service Bulletin is issued as a record-type

change. Aperture cards and/or drawings are

furnished in lieu of illustrations to perform

this modification.

1. Plannina Information:

A. Effectivitv:

(1) Aircraft Affected:

DC-9-81. -82. -83. and -87 (MD-81. -82. -83. and -87): MD-88

(a) Operator and Aircraft Number:

Operator Factory Serial No. Ooerator Factory Serial No.

AA 49145

49155

49158

49161

49167

49171

49251

49253

49269

49286

49331

49451

49468

49553

49558

49592

49647

49675

5

and

thru

and

thru

thru

thru

thru

thru

thru

thru

thru

thru

thru

thru

49159

49163

49168

49181

49259

49273

49329

49353

49460

49477

49566

49601

49656

49684

AA 49730

(cont) 49797

49890

49915

49987

53025

53083

AM 49761

49763

49926

48067

48083

49149

49188

thru

thru

thru

thru

thru

thru

and

49739

49806

49899

49924

49996

53034

53084

thru 49765

thru 49929

thru 48069

thru 49190

49660

49667

April 8/91 Bulletin 28-53

Revision 1 April 16/92

Group

5

(cont)

3

5

8

Page 1 of 29
Operator Factory Serial No. Grouf

AO 49642

53050 and 53051

49668

AS 48079 and

49103 and

49111

49386 and

49643

49657 and

49825

49925

48080

49104

49387

49658

53052

49231 thru 49236

49363 thru 49365

53018 thru 53024

49126

AU 49784

49934

48024 and

48050

48025

AY 49403 thru 49405

49150 thru 49152

49252

49284

49625

49741

49877

49904 thru 49906

AZ 53053

49192 thru 49221

49430 thru 49435

49549 thru 49552

49794 thru 49796

49969 thru 49975

BW 49632

49786

49789

BW 49390

(cont) 49400

49448

49568

49575

49824

CBF 49415

49425

49428

49502

49505

49508

49510

49512

49514

49516

49518

49520

49522

CEA 49140

49355

49501

49503

49507

49509

49511

49513

49515

49517

49519

49521

CO 48027

48044

48056

48062

48066

48073

49102

49112

49116

49120

49125

49391

49439

49441

49444

49450

49525

and 49506

thru 49524

and 49141

and 49504

and

and

and

thru

thru

thru

48045

48063

48074

49114

49118

49122

thru 49394

and 49526

Bulletin 28-53 April 8/91

Revision 1 April 16/92 Page 2

Qperator Factory Serial No. Grouo
Operator Factory Serial No. Group Operator

CO 49127

(cont) 49222

49229

49246

49249

49260

49370

49478

49580

49634

DL 49532

49573

49583

49591

49644

49705

49711

49810

49878

49976

53115

53161

53172

53214

53241

8

and

thru

and

thru

thru

and

49250

49265

49371

49494

49582

49635

thru 49546 3

and 49584

KE 49785

49787

49373 and 49374

49416 thru 49419

LM 49123 and 49124

49661

LV 49788

49793

49395

49567

thru 49646 49659

thru

thru

thru

thru

and

and

and

thru

49723

49819

49887

49984

53116

ML 49727

NW 48054

48057

48086

48088

53173 49110

53215

53243

IB 49827 thru 49843

53207 thru 53213

IG 49901

49247

49531

49669

49740

and 49248

OS 49411

49888

2

3

9

JD 49464 thru 49467 4

48015

48059

49115

49164

49278

49372

49933

SK 49605

49614

and 48055

thru 48091

thru 49414

thru 48021

and 49279

thru 49612

48029

48070

49280

49461

49820

49907

JP 48046

48087

49379

49440

thru

thru

thru

thru

and

and

48033

48072

49283

49463

49821

49908

thru 48048

5 49603

49613

49615

49728

49909

49998

53000

5

49380

49420

49436

49554

April 8/91

and 49604

thru 49914

and 49999

thru 53002

thru 49385

thru 49424

thru 49438

and 49555

Bulletin 28-53

Revision 1 April 16/92

Factory Serial No. Group

Page 3
Operator Factory Serial No. Grou

SR 48002

49100

49356

49570

49844

53149

TW 49153

49156

49160

49165

49169

49182

49230

49245

49266

49426

49527

thru 48014

thru 49359

thru 49572

and 53150

and 49154

and 49157

and

and

thru

and

and

thru

5 XRI 49708

49710

XYX 49760

49762

XZA 49845

5 49848

49724

49166 49779

49170

49187 X7C 49628 and 49629

49791 and 49792

49267

49427

49530

49701 thru 49704 8

US 48028

48026

48034

48049

48052

48092

49119

49138

49142

49237

49429

49443

thru 48043

and 48053

thru 48099

and 49139

and 49143

5

7

XLL 49846 and 49847 1

X9D 49940

YBB 49101

49277

49569

49930

YGA 48022

49398

49619

YHG 49939

49942

YMP 49144

YPA 49556

49663

YUZ 48051

48058

and 49620

and 49557

49670 and 49671

49767 and 49768

4 ZD9 49935

49941

thru 49937

5

and 49857

thru 53015

ZJ7 49574

49622

49624

49626

49826

ZL1 49576

49662

49707

49822

49968

and 49823

Bulletin 28-53

Page 4

April 8/91

Revision 1 April 16/92

MeOamlwsoumCp,m, ,VTi .f.n ¢t .. Uor d

THESE DATA SUSJIT TO imm, nifVE LEGD ON T1LE PAGE OR FST PAGE.

49402

49449

49602

49769

49854

49856

53012

Operator Factory Serial No.
Operator Factory Serial No.

ZMF 49889

53017

ZOP 49759

49766

53044 thru 53046

49366 thru 49369

ZQE 49442

ZQ8 49807 and 49808

Z1J 49631

49401

Z2K 49931 and 49932

Z2Y 49673

49777

49938

Z3V 49585 thru 49587

49641

Group

3

3

5

5

3

3

5

3

2

3

4

Operator Factory Serial No. Grou

Z6K 49389 4

49706

49396 and 49397 5

49578

49623

Z7G 49780 2

Z7I 49725 and 49726 2

49778

Z9R 49627 3

49630

49790

49900

49577 5

49579

49621

49672

Z9U 49399 5

49617 and 49618

49855

49709 8

(b) Other Aircraft:

Factory Serial No. Group

48000 and 48001 5

NOTE: Aircraft listed under Other Aircraft are

affected by this Service Bulletin but were

not assigned to any specific operator at

time of Service Bulletin issue.

April 8/91

Revision 1 April 16/92

Bulletin 28-53

Page 5
(c) Manufacturer's Fuselage and Factory Serial Numbers:

FUS (FSN) FUS (FSN) FUS (FSN) FU (FSN) FUS (FSN

909 (48000)

917 (48001)

924 (48015)

938 (48002)

941 (48016)

944 (48003)

946 (48034)

948 (48024)

950 (48004)

952 (48025)

953 (48029)

955 (48035)

957 (48005)

958 (48017)

960 (48026)

962 (48030)

963 (48035)

965 (48037)

966 (48006)

967 (48044)

969 (48031)

970 (480 5)

971 (48007)

973 (48027)

974 (48052)

975 (48051)

977 48046)

978 (48032)

979 (48028)

981 (48008)

983 (48049)

985 (48009)

986 (48053)

988 (48033)

989 (48050)

991 (48058)

992 (48010)

994 (48011)

995 (48018)

996 (48054)

997 (48012)

998 (48047)

999 (48070)

1000 (48013)

1001 (48019)

1002 (48038)

1003 (48039)

1004 (48071)

1005 (48048)

1006 (48040)

1007 (48055)

1008 (48041)

1009 (48042)

1010 (48043)

1011 (48072)

1012 (48056)

1013 (48014)

1015 (48062)

1016 (48079)

1018 (48073)

1019 (48066)

1020 (48063)

1022 (48080)

1023 (48057)

1025 (49100)

1026 (48074)

1028 (48067)

1029 (48086)

1031 (48068)

1032 (48069)

1034 (48092)

1035 (48087)

1037 (48088)

1038 (48089)

1040 (48090)

1041 (48091)

1043 (48083)

1045 (48020)

1047 (48059)

1049 (48093)

1051 (49101)

1053 (48094)

1055 (48095)

1057 (48096)

1059 (48097)

1060 (48098)

1061 (49116)

1062 (49110)

1063 (49117)

1064 (49111)

1065 (49118)

1066 (49114)

107 (48099)

1068 (49112)

1069

1070

1071

1072

1073

1074

1075

1076

1077

1078

1079

1080

1082

1083

1085

1086

1087

1088

1089

1090

1091

1092

1093

1094

1095

1096

1097

1098

1099

1100

1101

1102

1103

1104

1105

1106

1107

1108

1109

1110

1111

1112

1113

1114

1115

1116

1117

(49113)

(49119)

(49120)

(49121)

(49122)

(49125)

(49123)

(49102)

(49124)

(48021)

(48022)

(49126)

(49127)

(49103)

(49104)

(49149)

(49150)

(49151)

(49152)

(49138)

(49139)

(49140)

(49141)

(49142)

(49143)

(49144)

(49145)

(49166)

(49167)

(49168)

(49153)

(49154)

(49155)

(49156)

(49157)

(49158)

(49159)

(49160)

(49161)

(49162)

(49163)

(49171)

(49172)

(49173)

(49174)

(49175)

(49165)

1118

1119

1120

1121

1122

1123

1124

1125

1126

1127

1128

1129

1130

1131

1132

1133

1134

1135

1136

1137

1138

1139

1140

1141

1142

1143

1144

1145

1146

1147

1148

1149

1150

1151

1152

1153

1154

1155

1156

1157

1158

1159

1160

1161

1162

1163

1164

(49169)

(49170)

(49176)

(49177)

(49178)

(49179)

(49180)

(49181)

(49192)

(49193)

(49182)

(49183)

(49194)

(49184)

(49185)

(49186)

(49187)

(49115)

(49195)

(49196)

(49197)

(49222)

(49229)

(49230)

(49198)

(49199)

(49237)

(49245)

(49246)

(49200)

(49201)

(49249)

(49260)

(49247)

(49248)

(49261)

(49251)

(49253)

(49254)

(49255)

(49256)

(49262)

(49257)

(49258)

(49259)

(49263)

(49269)

1165 (49270)

1166 (49271)

1167 (49272)

1168 (49273)

1169 (49252)

1170 (49202)

1171 (49264)

1172 (49188)

1173 (49189)

1174 (49203)

1175 (49286)

1176 (49287)

1177 (49231)

1178 (49232)

1179 (49204)

1180 (49190)

1181 (49277)

1182 (49164)

1183 (49278)

1184 (49205)

1185 (49265)

1186 (49250)

118 (49288)

1188 (49206)

1189 (49207)

1190 (49208)

1191 (49209)

1192 (49210)

1193 (49289)

1194 (49280)

1195 (49290)

1196 (49366)

1197 (49367)

1198 (49368)

1199 (49369)

1200 (49281)

1201 (49373)

1202 (49211)

1203 (49233)

1204 (49234)

1205 (49379)

1206 (49370)

1207 (49371)

1208 (49374)

1209 (49284)

1210 (49291)

1211 (49292)

Bulletin 28-53

Revision 1

Apr11 8/91

April 16/92

1212

1213

1214

1215

1216

1217

1218

1219

1220

1221

1222

1223

1224

1225

1226

1227

1228

1229

1230

1231

1232

1233

1234

1235

1236

1237

1238

1239

1240

1241

1242

1243

1244

1245

1246

1247

1248

1249

1250

1251

1252

1253

1254

1255

1256

1257

1258

(49293)

(49294)

(49295)

(49296)

(49297)

(49298)

(49299)

(49300)

(49301)

(49302)

(49303)

(49304)

(49355)

(49380)

(49305)

(49306)

(49307)

(49308)

(49279)

(49381)

(49382)

(49212)

(49235)

(49236)

(49383)

(49384)

(49266)

(49267)

(49425)

(49428)

(49429)

(49213)

(49385)

(49214)

(49309)

(49310)

(49311)

(49312)

(49356)

(49357)

(49372)

(49215)

(49420)

(49313)

(49314)

(49315)

(49316)

Page 6
fUI FSN f1U FSN fU~ {Fi EUS FSN FUS FS FUS FSN

1259 (49317) 1309 (49482) 1360 (49491) 1410 (49469) 1460 (49559) 1510 (49596)

1260 (49415) 1310 (49219) 1361 (49492) 1411 (49582) 1461 (49658) 1511 (49597) 1261 (49402) 1311 (49333) 1362 (49531) 1412 (49411) 1462 (49560) 1512 (49607)

1262 (49216) 1312 (49334) 1363 (49504) 1413 (49574) 1463 (49671) 1513 (49598) 1263 (49421) 1313 (49448) 1364 (49493) 1414 (49575) 1464 (49617) 1514 (49510)

1264 (49422) 1314 (49483) 1365 (49538) 1415 (49556) 1465 (49579) 1515 (49599)

1265 (49318) 1315 (49484) 1366 (49539) 1416 (49541) 1466 (49667) 1516 (49600)

1266 (49319) 1316 (49485) 1367 (49567) 1417 (49470) 1467 (49668) 1517 (49609) 1267 (49320) 1317 (49486) 1368 (49494) 1418 (49471) 1468 (49572) 1518 (49601) 1268 (49217) 1318 (49439) 1369 (49580) 1419 (49634) 1469 (49573) 1519 (49613) 1269 (49390) 1319 (49220) 1370 (49344) 1420 (49635) 1470 (49583) 1520 (49647) 1270 (49391) 1320 (49335) 1371 (49345) 1421 (49642) 1471 (49584) 1521 (49648) 1271 (49416) 1321 (49336) 1372 (49346) 1422 (49576) 1472 (49586) 1522 (49611) 1272 (49392) 1322 (49441) 1373 (49347) 1423 (49643) 1473 (49644) 1523 (49713) 1273 (49321) 1323 (49444) 1374 (49348) 1424 (49412) 1474 (49561) 1524 (49714) 1274 (49218) 1324 (49450) 1375 (49349) 1425 (49507) 1475 (49562) 1525 (49405) 1275 (49363) 1325 (49337) 1376 (49350) 1426 (49472) 1476 (49464) 1526 (49649) 1276 (49364) 1327 (49338) 1377 (49431) 1427 (49473) 1477 (49462) 1527 (49650) 1277 (49365) 1328 (49339) 1378 (49432) 1428 (49433) 1478 (49701) 1528 (49651) 1278 (49417) 1329 (49340) 1379 (49554) 1429 (49662) 1479 (49702) 1529 (49652) 1279 (49393) 1330 (49221) 1380 (49568) 1430 (49404) 1480 (49645) 1530 (49715) 1280 (49322) 1331 (49397) 1381 (49505) 1431 (49474) 1481 (49646) 1531 (49716) 1281 (49323) 1332 (49398) 1382 (49527) 1432 (49475) 1482 (49509) 1532 (49717) 1282 (49282) 1333 (49389) 1383 (49528) 1433 (49542) 1483 (49619) 1533 (49718) 1283 (49423) 1334 (49430) 1384 (49581) 1434 (49543) 1484 (49620) 1534 (49653) 1284 (49424) 1335 (49487) 1385 (49351) 1435 (49602) 1485 (49563) 1535 (49654) 1285 (49394) 1336 (49341) 1386 (49352) 1436 (49557) 1486 (49564) 1536 (49655) 1286 (49395) 1337 (49342) 1387 (49353) 1437 (49663) 1487 (49707) 1537 (49511) 1287 (49386) 1338 (49532) 1388 (49451) 1438 (49659) 1488 (49463) 1538 (49626) 1288 (49387) 1339 (49343) 1389 (49452) 1439 (49476) 1489 (49703) 1539 (49822) 1289 (49324) 1340 (49525) 1390 (49453) 1440 (49570) 1490 (49704) 1540 (49823) 1290 (49325) 1341 (49533) 1391 (49454) 1441 (49477) 1491 (49705) 1541 (49587) 1291 (49443) 1342 (49526) 1392 (49455) 1442 (49603) 1492 (49711) 1542 (49709) 1292 (49501) 1343 (49399) 1393 (49456) 1443 (49544) 1493 (49669) 1543 (49615) 1293 (49478) 1344 (49534) 1394 (49418) 1444 (49545) 1494 (49672) 1544 (49549) 1294 (49358) 1345 (49437) 1395 (49540) 1445 (49660) 1495 (49621) 1545 (49656) 1295 (49326) 1346 (49503) 1396 (49529) 1446 (49434) 1496 (49565) 1546 (49675) 1296 (49327) 1347 (49535) 1397 (49530) 1447 (49546) 1497 (49566) 1547 (49710) 1297 (49479) 1348 (49536) 1398 (49457) 1448 (49591) 1498 (49622) 1548 (49512) 1298 (49480) 1349 (49359) 1399 (49426) 1449 (49508) 1499 (49623) 1549 (49724) 1299 (49283) 1350 (49488) 1400 (49506) 1450 (49553) 1500 (49712) 1550 (49676) 1300 (49502) 1351 (49489) 1401 (49427) 1451 (49558) 1501 (49605) 1551 (49677) 1301 (49328) 1352 (49490) 1402 (49555) 1452 (49661) 1502 (49624) 1552 (49725) 1302 (49329) 1353 (49438) 1403 (49419) 1453 (49670) 1503 (49625) 1553 (49728) 1303 (49436) 1354 (49449) 1404 (49403) 1454 (49577) 1504 (49435) 1554 (49824) 1304 (49440) 1355 (49537) 1405 (49569) 1455 (49578) 1505 (49592) 1555 (49678) 1305 (49396) 1356 (49400) 1406 (49458) 1456 (49604) 1506 (49593) 1556 (49614) 1306 (49331) 1357 (49401) 1407 (49459) 1457 (49585) 1507 (49594) 1557 (49679) 1307 (49332) 1358 (49442) 1408 (49460) 1458 (49571) 1508 (49673) 1558 (49680) 1308 (49481) 1359 (49461) 1409 (49468) 1459 (49657) 1509 (49595) 1559 (49769)

April 8/91 Bulletin 28-53

Revision 1 April 16/92 Page 7
FUS (FSN) FUS (FSN) £US (FSN) FUS (FSN) FUS (FSN) fUS (FSN)

(49977)

(49522)

(49832)

(53050)

(49610)

(49833)

(49896)

(49897)

(49898)

(49978)

(49979)

(49980)

(49796)

(49834)

(49926)

(49927)

(49835)

(53051)

(49969)

(49930)

(49836)

(49899)

(49915)

(49523)

(49981)

(49982)

(49466)

(49855)

(49916)

(49837)

(53052)

(49928)

(49838)

(49907)

(49917)

(53012)

(49970)

(53013)

(49839)

(53014)

(49929)

(49467)

(49918)

(49919)

(49840)

(49524)

(49983)

1748

1749

1750

1751

1752

1753

1754

1755

1756

1757

1758

1759

1760

1761

1762

1763

1764

1765

1766

1767

1768

1769

1770

1771

1773

1774

1775

1776

1777

1778

1779

1780

1781

1782

1783

1784

1785

1786

1787

1788

1789

1790

1791

1792

1793

1794

1795

(49984)

(49908)

(49920)

(49841)

(49921)

(49922)

(49931)

(49971)

(49932)

(49972)

(49923)

(49924)

(49987)

(49889)

(49973)

(49842)

(49934)

(49900)

(49901)

(49905)

(49988)

(49989)

(49990)

(49843)

(49935)

(49974)

(49975)

(53044)

(53045)

(49936)

(53018)

(49991)

(49992)

(49993)

(53019)

(49937)

(49938)

(49906)

(49939)

(49940)

(53020)

(49994)

(49995)

(49996)

(49941)

(53046)

(53115)

1796 (53116)

1797 (53017)

Bulletin 28-53 Aprl 8/91

Revision 1 April 16/92

156

1561

1562

1563

1564

1565

1566

1567

1568

1569

1570

1571

1572

1573

1574

1575

1576

1577

1578

1579

1580

1581

1582

1583

1584

1585

1586

1587

1588

1589

1590

1591

1592

1593

1594

1595

1596

1597

1598

1599

1600

1601

1602

1603

1604

1605

1606

0 (49681)

1 (49708)

2 (49682)

3 (49683)

4 (49684)

(49730)

(49731)

(49732)

(49513)

(49606)

(49719)

(49720)

(49608)

(49845)

(49721)

(49722)

(49723)

(49825)

(49826)

(49844)

(49627)

(49846)

(49628)

(49629)

(49550)

(49847)

(49551)

(49767)

(49810)

(49514)

(49811)

(49630)

(49848)

(49812)

(49877)

(49768)

(49631)

(49552)

(49820)

(49813)

(49794)

(49854)

(49814)

(49632)

(49465)

(49815)

(49759)

1607

1608

1609

1610

1611

1612

1613

1614

1615

1616

1617

1618

1619

1620

1621

1622

1623

1624

1625

1626

1627

1628

1629

1630

1631

1632

1633

1634

1635

1636

1637

1638

1639

1640

1641

1642

1643

1644

1645

1646

1647

1648

1649

1650

1651

1652

1653

7 (49733)

8 (49816)

9 (49515)

0 (49726)

(49618)

2 (49817)

3 (49818)

(49706)

(49821)'

(49925)

(49641)

(49740)

(49734)

(49760)

(49727)

(49516)

(49761)

(49762)

(49909)

(49763)

(49784)

(49785)

(49819)

(49741)

(49786)

(49764)

(49517)

(49777)

(49735)

(49787)

(49788)

(49910)

(49795)

(49736)

(49737)

(49789)

(49790)

(49791)

(49765)

(49778)

(49518)

(49738)

(49739)

(49797)

(49798)

(49799)

(49911)

1654

1655

1656

1657

1658

1659

1660

1661

1662

1663

1664

1665

1666

1667

1668

1669

1670

1671

1672

1673

1674

1675

1676

1677

1678

1679

1680

1681

1682

1683

1684

1685

1686

1687

1688

1689

1690

1691

1692

1693

1694

1695

1696

1697

1698

1699

1700

(49827)

(49792)

(49793)

(49766)

(49519)

(49912)

(49800)

(49801)

(49802)

(49803)

(49878)

(49913)

(49879)

(49828)

(49968)

(49804)

(49779)

(49520)

(49805)

(49806)

(49780)

(49856)

(49880)

(49881)

(49829)

(49882)

(49904)

(49413)

(49414)

(49883)

(49830)

(49884)

(49890)

(49857)

(49831)

(49885)

(49521)

(49886)

(49888)

(49914)

(49891)

(49892)

(49893)

(49894)

(49895)

(49887)

(49976)

1701

1702

1703

1704

1705

1706

1707

1708

1709

1710

1711

1712

1713

1714

1715

1716

1717

1718

1719

1720

1721

1722

1723

1724

1725

1726

1727

1728

1729

1730

1731

1732

1733

1734

1735

1736

1737

1738

1739

1740

1741

1742

1743

1744

1745

1746

1747

1799

1800

1801

1802

1803

1804

1805

1806

1808

1809

1810

1811

1812

1813

1814

1815

1816

1817

1818

1819

1820

1821

1822

1823

1824

1825

1826

1827

1828

1829

1830

1831

1832

1833

1834

1835

1836

1837

1862

1865

1867

1871

1874

1877

1879

(49942)

(49998)

(53021)

(53025)

(49999)

(53026)

(53027)

(53053)

(53161)

(53022)

(53172)

(53173)

(53000)

(53028)

(53029)

(53001)

(53030)

(53149)

(53015)

(53031)

(53032)

(53023)

(53033)

(53214)

(53215)

(53024)

(53034)

(49612)

(53083)

(49807)

(53084)

(53150)

(53241)

(53242)

(53243)

(53002)

(49808)

(49933)

(53207)

(53208)

(53209)

(53210)

(53211)

(53212)

(53213)

Page 8
The low fuel pressure indication system modification will be

incorporated prior to delivery on all applicable DC-9-81, -82,

-83, -87, and MD-88 aircraft, manufacturer's fuselage numbers

1326, 1772, 1798, 1807, 1838 through 1861, 1863, 1864, 1866, 1868

through 1870, 1872, 1873, 1875, 1876, 1878, 1880, and subsequent.

(2) Spares Affected:

None.

B. Reason:

One operator reported one instance where 11,000 pounds of fuel remained

trapped in the center wing fuel tank with 800 pounds of fuel remaining

in each main tank. The excess fuel in the center wing fuel tank has

been attributed to failure of a boost pump. Failure of a center tank

boost pump can result in premature use of main tank fuel. Incorporation

of a low fuel pressure indication system which utilizes pressure

switches and an annunciator caution light will provide timely indication

of a failed boost pump condition.

C. Description:

All Groups

This modification accomplishes the following:

(1) Installs two low fuel pressure switches and associated tube

assemblies on center wing fuel tank boost pumps located between

stations Xcw=-58.688 and Xcw=-104.500.

(2) Installs a relay bracket, bus assembly, relay, and receptacle

in the electrical power center (EPC) at station Y=160.000.

(3) Modifies annunciator panel.

(4) Revises aircraft wiring to accommodate low fuel pressure system.

D. Compliance:

It is recommended that this modification be accomplished at the earliest

practical maintenance period.

E. Approval:

The resultant modification described in paragraph 1.C has been shown

to comply with the applicable Federal Aviation Regulations and is FAA

approved for the affected aircraft listed in paragraph 1.A.

April 8/91 Bulletin 28-53

Revision 1 April 16/92 Page 9
F. Manpower:

NQIE: Man-hours are estimated based on work to be performed

by skilled personnel on aircraft/unit which has been

placed in a maintenance status. The man-hour/elapsed

time estimates do not include:

1. Preparation for the modification: Examples; defueling,

purging, placing work stands, opening standard access

doors, obtaining tools, and jacking when not essential

to the modification.

2. Nonproductive elapsed time: Examples; sealant or

adhesive cure time, cleaning, paint drying time, lunch

and/or rest periods, and quality assurance inspections.

3. Administrative functions: Examples; planning,

engineering liaison, parts requisition, shift change

coordination, and report writing.

Operators should take the above into consideration when

scheduling this modification.

Man-hours do not include time for wire routing on aircraft

equipped with forward auxiliary tank.

This modification may be accomplished in the following approximate

man-hours or elapsed hours per aircraft:

Man-Hours

Work Phases All Grouns

Gain Access 77.2

Remove 1.0

Modify (Aircraft) 121.5

Install 4.1

Functional Check 2.8

Close up 88.7

Total Man-Hours 295.3

Total Elapsed Hours 49.2

G. Material - Cost and Availabilitv:

(1) Aircraft:

Parts/kits required to accomplish this modification are listed in

paragraph 3.A and are to be procured as indicated. Parts bearing

Douglas Aircraft Company part numbers are proprietary parts and

must be procured under the spare parts article of the purchase

agreement, unless methods of manufacture are shown.

Bulletin 28-53 April 8/91

Page 10 Revision 1 April 16/92
Published kits and unit net prices apply to all orders received

prior to expiration date of December 31, 1992. (See paragraph

3.A for unit net prices.)

Published prices are firm for all purchase orders in any quantity

received prior to the expiration date and are predicated on orders

being accumulated and released on this date. Availability of

parts/kits will be furnished upon receipt of purchase order.

Purchase orders received subsequent to the expiration date will

be individually scheduled and may reflect an increase in price.

Purchase order must specify this Service Bulletin number and only

parts listed herein. Direct purchase order to:

(2) Snares:

Not applicable.

H. Toolina - Price and Availability:

None.

I. Weight and Balance:

MD-81. -82. and -83: MD-88

This modification will increase the weight of the

approximately station 850.0 as follows:

(1) Mfr's Empty Weight (MEW) Increase

(2) Moment Change (MEW) +8,

(3) Index Unit Change (MEW)

MD-87

This modification will increase the weight of the

approximately station 736.0 as follows:

(1) Mfr's Empty Weight (MEW) Increase

(2) Moment Change (MEH) +7,

(3) Index Unit Change (MEW)

aircraft at

+10.0

,500.0

-0.7

LB

IN.-LB

aircraft at

+10.0

,360.0

-0.7

LB

IN.-LB

April 8/91

Revision 1 April 16/92

Bulletin 28-53

Page 11
J. References:

(1) MD-80 Service Bulletins 28-54, 28-58, 28-59, and 30-64 should be

considered by the operator when planning this modification due to

the proximity of work areas and the duplication of parts required

by all service bulletins.

(2) Teledyne Service Bulletin SBR6357.501A-13-01.

(3) Smith Service Bulletin 102ADP-31-220.

(4) Data used in preparation of this Service Bulletin:

Data Identification

DMS 1984

DPS 1.834-25, dated

October 6, 1988

DPS 2.50, dated

June 22, 1989

DPS 3.317, dated

February 9, 1984

DPS 4.025, dated

May 19, 1987

MM Chapters 6, 20,

25, 28, and 31

SM09570003

SM09570003

SR09280010

SR09280014

SR09280022

SR09280026

SR09280029

SR09280033

SRM Chapter 51

WDM Chapter 20

28-42-11

33-12-01

Chance

D

AC

N

P

E

G and H

D

H

A

C

C

A

Tvpe of Data

Douglas Material Specification

Douglas Process Standard

Douglas Process Standard

Douglas Process Standard

Douglas Process Standard

Maintenance Manual

Service Modification Drawing

Advance E.O.

Service Rework Drawing

Service Rework Drawing

Service Rework Drawing

Service Rework Drawing

Advance E.O.

Service Rework Drawing

Structural Repair Manual

Wiring Diagram Manual

Wiring Diagram

Wiring Diagram

*Page numbers will vary with operators.

(5) Data supplied in support of this Service Bulletin:

Data Identification

SM09570003

SM09570003

SR09280010

SR09280014

SR09280022

SR09280026

SR09280029

SR09280033

E

G and H

D

H

A

C

C

A

Type of Data

Service

Advance

Service

Service

Service

Service

Advance

Service

Modification Drawing

E.O.

Rework Drawing

Rework Drawing

Rework Drawing

Rework Drawing

E.O.

Rework Drawing

Bulletin 28-53 April 8/91

Revision 1 April 16/92 Page 12
QNOE: One reproducible and two copies or aperture

cards of the listed service rework drawing

are being furnished to each affected operator.

K. Publications Affected:

The modification outlined in this Service Bulletin affects the

following MD-80 publications:

Publication

Airplane Flight Manual

Flight Crew Operating Manual

Illustrated Parts Catalog

Maintenance Manual

Weight and Balance Documents

Chapter/Section

Section III

Systems Description

Volume II, Section 4

Chapters 1, 6, 7, and 10

31-10 and 33-11

28-21

L. Electrical Load Data:

Not affected.

M. Software Accomplishment Summary:

Not affected.

April 8/91

Revision 1 April 16/92

Bulletin 28-53

Page 13
2. Accomplishment Instructions:

WARNING: TO AVOID INJURY TO MAINTENANCE PERSONNEL

OR DAMAGE TO EQUIPMENT, MAKE CERTAIN

ADEQUATE PRECAUTIONS ARE TAKEN WHILE

PERFORMING ANY WORK IF ELECTRICAL POWER

IS APPLIED TO THE AIRCRAFT.

CAUTION: ELECTRICALLY GROUND THE AIRCRAFT.

GENERAL NOTES;

1. See Figure 1 for Scope of Modification.

2. Maintenance personnel should thoroughly familiarize themselves

with referenced drawings and manual chapters before starting this

modification.

3. For approved fastener and process material substitutions, see

DC-9 Structural Repair Manual, chapter 51-60-0, paragraphs entitled "Interchangeability of Fastener" and "Interchangeabillty of Material."

4. If the length of a fastener specified in this Service Bulletin

does not meet the acceptable installation standard, a fastener of

the same type or an approved substitution one increment longer or

shorter in length may be used.

5. A 1/8-inch thick

Service Bulletin

fastener head or

EXCEPTION:

stack of the same type washers called for in this

is the maximum thickness which may be used under

nut to counteract accumulation of tolerances.

When the available fastener length increment is greater than 1/16 inch,

a 3/16-inch thick stack of the same

type washers may be used.

6. If substitutions are used other than those listed in Douglas approved publications, operator must obtain FAA or other

applicable regulatory agency approval from local authorized agency.

7. For hole preparation and rivet/hi-lok installation, see Structural

Repair Manual, chapter 51-00-0.

8. Identify added electrical components with applicable item numbers

as noted in service rework drawing SR09280010.

April 8/91 Bulletin 28-53

Revision 1 April 16/92 Page 14
9. Insulation blankets may be pulled back as required to gain access

to work areas. Exercise care to avoid damage to insulation

blankets. If blankets are damaged, they must be repaired using

DMS 1984, Type 3, Class 2 tape.

10. New wiring must be routed in existing wire runs with compatible

systems to avoid systems interference. Where no compatible wire

runs exist, develop new wire run.

11. Length specified on "ADD" wires is cut length only. Finished length

to be determined upon installation of wire into parent wire assembly.

12. Use tying tape to string tie added wires to existing wire bundle

approximately 1.5 inches from edge of clamp and approximately 3.0

inches between clamps.

13. Sequence of instructions for removals, installations, and

modifications are intended as an aid. Actual sequence of operation

to accomplish this modification is at the operator's option.

14. Refer to the following MD-80 Wiring Diagram Manual chapters for

applicable operations:

Chapter Tltle

20-10-00 Wiring Procedures

20-20-00 Terminations

20-20-02 Electrical Load Distribution

20-32-00 Connections

15. For installation of fluid fittings, see MD-80 Maintenance Manual,

chapter 28-20-19, paragraph entitled "Removal/Installation Flexible

Fuel Line Couplings."

16. Chapters within parentheses refer to sections of the Maintenance

Manual.

All Groups

A. Drain and purge left main, right main, and center main fuel tanks.

(See chapter 28-00-00, paragraph entitled "General - Description and

Operation", and chapter 28-10-01, paragraph entitled "Fuel Tank

Maintenance Practices."

Bulletin 28-53 April 8/91

Page 15 Revision 1 April 16/92
B. Gain access to work areas as follows:

(1) Open the following wing access doors. (See chapter 6-21-00.)

Riaht Wina

lower Surface Unner Surface

1231C 1436C

1266C 2302C

1263C

(2) Remove and retain 2216C right side fuselage underwing fillet and

attaching parts. (See chapter 6-22-00.)

(3) Open electrical/electronics (E/E) compartment access door (4501A),

and the lower forward and mid cargo doors. (See chapter 6-24-00.)

(4) Remove and retain forward cabin attendant's seat and attaching

parts as applicable. (See chapter 25-23-01, paragraph entitled

"Removal/Installation Forward Cabin Attendant's Seat.")

(5) Remove and retain aft electrical power center (EPC) panels 4601A

and 4603A, and attaching parts. (See chapter 6-31-00.)

(6) Open forward overhead switch panel. (See chapter 31-10-07,

paragraph entitled "Description and Operation - Forward Overhead

Switch Panel.")

(7) Remove and retain right side flight compartment liners and

attaching parts. Open necessary blanket sections to affected

area. Retain attaching parts. (See chapter 25-11-00, paragraph

entitled "Removal/Installation Flight Compartment Lining and

Insulation.")

(8) Accomplish the following between fuselage stations Y=465.000 to

Y=617.000 (MD-81, -82, -83, and -88), or Y=377.500 to Y=514.000

(MD-87) for aircraft with forward auxiliary fuel tank installed.

(a) Remove and retain left side passenger seats and attaching

parts. (See chapter 25-23-00, paragraph entitled

"Removal/Installation Passenger Seats.")

(b) Remove and retain passenger compartment floor covering and

attaching parts. (See chapter 25-27-00, paragraph entitled

"Passenger Compartment Floor Covering.")

(c) Remove and retain two 9936585-3 passenger compartment floor

panels and attaching parts. (See chapter 53-20-01, paragraph

entitled "Center Section Passenger Compartment Floor Panels

Removal/Installation.")

April 8/91 Bulletin 28-53

Revision 1 April 16/92 Page 16
(9) Remove and retain cargo compartment sidewall and ceiling panel

assemblies and attaching parts as necessary to accomplish

modification per service rework drawing SR09280014. (See chapter

25-52-01, paragraph entitled "Removal/Installation Sidewall,

Ceiling, and Floor Panels.")

C. Modify structure on right wing forward spar per service modification

drawing SM09570003, -7003 configuration as follows:

(1) Remove and retain AAP8004-665 bracket and attaching parts. Discard

fasteners.

(2) Temporarily position SM09570003-11 and -13 doublers on 9930529 and

9930514-3 webs respectively, as shown on View C-C.

(3) Layout and drill all holes through SM09570003-11 and -13 doublers,

and 9930529 and 9930514-3 webs, as shown on View C-C.

(4) Remove SM09570003-11 and -13 doublers and install NAS1473-C4 plate

nuts on 9930529 web and SM09570003-5 doubler, as shown on Views

A-A, B-B, and C-C.

(5) Install SM09570003-11 and -13 doublers on 9930529 and 9930514-3

webs respectively, as shown on View C-C.

(6) Reinstall AAP8004-665 bracket.

D. Remove tube assemblies, valves, volute assembly, pump unit, and

attaching parts per service rework drawing SR09280026, sheets 7.0

and 7.1. Retain parts as indicated on drawing.

E. Install two 42D131-1 pressure switches, two 275CV2 check valves, new

tube assemblies and parts retained in step D per service rework drawing

SR09280026, sheets 9.0 through 9.6.

F. Modify EPC circuit breaker panel per service rework

as follows:

Install Qtv ev Word Remove

drawing SR09280014

Drawing Applicable

Sheet Group

S4916953-2

S4916953-3

S4916953-19

5D0001-1

9961089-530

SR09280014-3

SR09280014-5

*7961078-549

TD-1989-2202

Bus Assy

Bus Assy

Bus Assy

Circuit

Breaker

Nameplate

Namestrip

Namestrip

Bracket

S4916953-2

S4916953-20

BS51338K2215

(Plug)

7953823-582

7953823-607

Relay

*This bracket will not be required

has been accomplished. Either bul

this bracket.

30.1

30.4

30.4

30.0

30.2

30.3

30.0

30.2

30.3

29.0

29.1

29.0

1 thru 8

10

10

1 thru 8

9

10

1 thru 8

9

10

1 thru 10

1 thru 10

if Service Bulletin 30-64 or 28-54

letin requires the installation of

Bulletin 28-53 April 8/91

Revision 1 April 16/92 Page 17
G. For aircraft with Teledyne annunciator panel, replace blank legend plate

with "CENTER FUEL PRESS LO" R1133-175-02190 legend plate as shown on

service rework drawing SR09280022, sheets 3.1, 6.1, and 6.2, as

applicable.

H. For aircraft with Smith Industries solid state annunciator panel,

modify and reidentify panel per Smith Service Bulletin 102ADP-31-220.

NOTE: This step will not be required if

Service Bulletin 30-64 or 28-54 has

been accomplished. Either bulletin

requires the modification of the

same annunciator panel.

I. Modify and reidentify master warning and caution controller per Teledyne

Service Bulletin SBR6357.501A-13-01.

NOTE: This step will not be required if

Service Bulletin 30-64 or 28-54 has

been accomplished. Either bulletin

requires the modification of the same

master warning and caution controller.

J. Revise existing wiring and Install low fuel level indication system

wiring per applicable group/configuration as follows: Perform

continuity check during installation.

NOTE: Maintenance personnel should familiarize

themselves with sheets 1 through 5 of

service rework drawing SR09280010 prior

to accomplishing this step.

Configuration Reference Drawing SR09280010

1

2

3

4

5, 9, and 10

6 and 7

8

-7001

-7003

-7005

-7007

-7009

-7011

-7013

Sheets

Sheets

Sheets

Sheets

Sheets

Sheets

Sheets

6 through 8,

6, 7, 9, 14,

6, 7, 9, 13,

6, 7, 10. 14,

6, 7, 10, 13,

6, 7, 11, 13,

6, 7, 12, 13,

13,

15,

15,

15,

15,

15,

15,

15, 16, and 23

17, and 23

18, and 23

19, and 23

20, and 23

21, and 23

22 and 23

K. Install the following parts per service rework drawing SR09280010:

Part No. Item No. Key Word

CL1-1006-161

DC62E1OSL3SN

1 R5-600

2 P1-318

P1-319

Receptacle

Plug

April 8/91

Revision 1 April 16/92

Bulletin 28-53

Page 18
and clip wiring per applicable group as follows:

Maintenance personnel should familiarize

themselves with sheets 1 through 5.2 of

service rework drawing SR09280014 prior

to accomplishing this step.

Configuration

-7001

-7003

-7005

-7007

-7009

-7011

-7013

-7015

-7017

Reference Drawina SR09280010

Sheets 6, 6.1, 10 through 13, 16, through 25,

26, 27, and 28

Sheets 6, 7, 10 through 12, 14, 16 through

25.1, 26.1, 27.1 and 28.

Sheets 6, 7, 10 through 12, 14 through 25,

26, 27, and 28.

Sheets 6, 8, 10 through 12, 15 through 25.1,

26.1, 27.1, and 28.

Sheets 6, 8, 10 through 12, 15 through 25,

26, 27, and 28.

Sheets 6, 9 through 12, 15 through 25, 26,

27, and 28.

Sheets 6, 8, 10 through 12, 15 through 25,

26, 27, and 28.

Sheets 6, 8, 10 through 12, 15 through 25,

26, 27, and 28.

Sheets 6, 8, 10 through 12, 15 through 25,

26, 27, and 28.

M. Replace the following lightplates on forward overhead switch panel

per service rework drawing SR09280033, sheet 6 as applicable.

Install Otv Kev Word Remove

9934503-578 Lightplate 9934503-2

or or

9934503-580 Lightplate 9934503-502

or or

9934503-579 Lightplate 9934503-524

or or

9934503-581 Lightplate 9934503-539

or or

9934503-618 Lightplate 9934503-549

NOTE: This step not required if Service Bulletin

28-54, or 30-64 has been accomplished.

Either bulletin requires the installation

of the same applicable lightplates.

Bulletin 28-53

Page 19

April 8/91

Revision 1 April 16/92

L. Route

NOTE:

Group

1

2

3

4

5 and 6

7

8

9

10
N. Perform fuel tank leak check per SR09280029, sheets 11.0 through 11.2.

NOTE: Maintenance personnel should familiarize

themselves with sheets 1 through 4.2 of

service rework drawing SR09280029 prior

to accomplishing this step.

0. Perform functional check per SR09280029, sheets 7.0 through 7.3.

P. Reinstall cargo compartment sidewall, and ceiling panel assemblies

and attaching parts.

Q. Reinstall blankets and flight compartment liners and panels and

attaching parts.

R. Close forward overhead switch panel.

S. Reinstall EPC panels and attaching parts.

T. Reinstall forward cabin attendant's seat and attaching parts.

U. Reinstall passenger seats, passenger compartment floor panels,

and floor covering using retained attaching parts as applicable.

V. Close E/E compartment access door, forward and mid cargo doors.

W. Reinstall underwing fuselage fillet and attaching parts.

X. Check fuel tank for contamination. (See chapter 28-10-01,

paragraph entitled "Inspection/Check for Foreign Material.")

Y. Reinstall wing access door panels and attaching parts.

Z. Service left and right wing fuel tanks.

AA. Change existing wiring diagrams to reflect this modification.

April 8/91 Bulletin 28-53

Revision 1 April 16/92 Page 20
FIGURE 

1 Bulletin 28-53 FIGURE 1

Page 21

April 8/91

Revision 1 April 16/92
3. Material Information:

A. The basis for the followina material data is per aircraft.

(1) Parts furnished in service kit or procured as indicated.

Discard old parts.

NOTE: Parts numbers in parentheses indicate

equivalent part numbers.

Qty Per Group

1 2 3 4 5 6 7 8

Unit

Net

9 10 Price Key Word

InstructionsDisDosition

SB09280053-3

SB09280053-5

SB09280053-7

SB09280053-9

SB09280053-11

SB09280053-13

$9,885.00

915.00

872.00

1,396.00

998.00

1,634.00

Service Kit

Service Kit

Service Kit

Service kit

Fastener Kit

Wire Package

1/ SB09280053-3 service kit consists of the following parts:

New Part No. Oty

Unit

Net

Price Key Word Old Part No.

InstructionsDisposition

AA18100D4-060

AA1810D6-060

AN924-4D

AN924-6D

CL1-1006-161

DC65-16SS

DC62E10SL3SN

LRM22M-1

LRC22M-1

MS24389D4

MS24392D4

MS24392D6

MS24393D4

MS24393D6

MS24399D7

MS25281-F4

MS25281-F6

MS29512-04

MS29512-06

MS29512-08

MS29513-006

Orifice

Fitting

Orifice

Fitting

Nut

Nut

Receptacle

Socket

Plug

Socket

Socket

Tee

Union

Union

Union

Union

Reducer

Clamp

Clamp

Packing

Packing

Packing

Packing

216531

M83248/1-904

April 8/91 Bulletin 28-53

Revision 1 April 16/92

Part No.

1/

21

4/ 5/

5/

7/ 17/

10

15/

10/

2/

2/

8/

8/

2/

9/

9/

1l

a/ a1

A/

a/

8/

8/

8/

8/ 8

Page 22
New Part No.

Unit

Net

Otv Pr ce Kev Word Old Part No.

InstructionsDispostion

SM09570003-11

SM09570003-13

S00023-20P

S00023-20S

S4892944-222

S4892944-226

YHMM22-2DB8

011157-015-24

011157-015-32

031-1046-002

275CV2

3937280-503

3937280-505

42D131-1

5D0086-3

(YAE22-G15GN)

5D0086-2

(YAE22-G13GN)

5954663-523

5954663-525

5954663-527

7913199-622

7913199-623

7913199-624

7913199-625

7913199-626

7913199-627

7913199-628

7913199-629

7913199-630

900065-3-08-08

(TA4076F0808)

9D0065-3-08-12

$ 54.60 Doubler

41.20 Doubler

Pin

Socket

Packing

Packing

Pin

Gask-O-Seal

Gask-O-Seal

Connector

Check Valve

1,099.00 Tube Assy

1,211.00 Tube Assy

Switch

Terminal

Lug

Terminal

Lug

226.00 Support

218.00 Support

184.00 Support

264.00 Pipe Assy

393.00 Pipe Assy

282.00 Pipe Assy

457.00 Pipe Assy

342.00 Pipe Assy

330.00 Pipe Assy

456.00 Pipe Assy

456.00 Pipe Assy

457.00 Pipe Assy

Bracket

Bracket

3937280-1

713199-531

2/ SB09280053-5 service kit consists of the following parts:

New Part No.

Unit

Net

Qtv Price Kev Word Qld Part No.

InstructionsDispositon

S4916953-2

TD-1989-2202

5D0001-1

9961089-530

1

1

1

$48.40

1 28.90

Bus Assy

Relay

Circuit

Breaker

Nameplate

BS51338K2215

Bulletin 28-53 April 8/91

Revision 1 April 16/92

7/

LI

7/

7

11

2/

2/

17/

7/

7/

Z/

7/

9/

1a/

15/ 15/

141

14/

9/

7/ 9/

Z/

7/

Z/

Z/ 1/

Z1

1Z

7/

21

7/

1/

7/

Z/ 1U/

7/

1/

7/

7/

12/

7/

Page 23
3/ SB09280053-7 service kit consists of the following parts:

New Part No. Otv

Unit

Net

Price Key Word Old Part No.

InstructionsDisoosition

SR09280014-3

TD-1989-2202

500001-1

I

1

1

$34.70 Namestrip

Relay

Circuit

Breaker

7953823-582

BS51338K2215

4/ SB09280053-9 service kit consists of the following parts:

New Part No. Otv

Unit

Net

Price Key Word Old Part No.

InstructionsDi sposi ton

SR09280014-5

S4916953-19

S4916953-3

TD-1989-2202

5D0001-1

1

1

1

1

1

$ 34.70

387.00

137.00

Namestrip

Bus Assy

Bus Assy

Relay

Circuit

Breaker

7953823-607

S491653-20

S491653-2

BS51338K2215

5/ Parts furnished in SB09280053-11 fastener kit.

NOTE: At operator's option, fastener

kit may be purchased from

Douglas Aircraft Company or

procured from operator's stock

or source indicated.

InstructionsPart No. Otv Disposition

HLT436-6-11 Pin

HLT436-6-4 Pin

HLT436-6-6 Pin

HLT436-8-9 Pin

HLT436-8-10 Pin

MS20470AD4-4 Rivet

MS20470AD5-5 Rivet

MS20470AD5-7 Rivet

MS20470AD5-8 Rivet

MS21042L3 Nut

MS21042L4 Nut

NAS1096-3-12 Screw

NAS1096-3-9 Screw

NAS1252-10L Washer

NAS1252-1016L Washer

NAS1252-416L Washer

NAS1252-816L Washer

24/

24/

24/

24/

24/

April 8/91 Bulletin 28-53

Revision 1 April 16/92

7/

12/

7/

7/ 1/

11

12/

7/

Page 24
InstructionsPart No. Qtv Disposition

NAS1303-2 Bolt 8

NAS1304-8 Bolt 16

NAS1473C4 Plate Nut 16

S2931983-30A06 Washer 111 /

S2931983-40A06 Washer 6 7/

3D0010-6-4 Pin 79 7/

3D0039-20 Cllpnut 8 7/

6/ SB09280053-13 wire package consists of the following wires:

NOTE: The wire package contains all wires

required by service rework drawing

SR09280010. Wires identified with

an asterisk (*) may not be required

by all of the above groups.

Disposition of excess wires is at

operator's option.

Length InstructionsWire No. (Inches) Disposition

Q252D24 145 7/ 19/

Q252E24 50 7/ 19/

Q252G24 260 7/ 19/

Q253A24 345 7/ 12/

Q254A24 345 7/ 19/

Q253F22 500 7/ 18/

Q254F22 500 7/ 18/

*Q253E24 600 7/ 19/

*Q254E24 600 7/ 19/

Q253G24 600 7/ 19/

Q254G24 600 7/ 19/

Q255A22N 60 7/ 18/

Q256A22N 60 2/ 18/

Q261A22N 200 7/ 18/

0262A22N 200 7/ 18/

*Q257A24 325 7/ 19/

Q257B24 70 7/ 19/

Q257C24 325 7/ 19/

*Q257D24 325 7/ 19/

*Q257E24 325 7/ 19/

Q258A24 30 7/ 12/

Q258B24 200 7/ 19/

*Q260A24 200 7/ 19/

*Q260B24 200 7/ 19/

*Q260C24 200 7/ 12/

*Q260D24 200 7/ 19/

*Q260E24 200 7/ 19/

Bulletin 28-53 April 8/91

Page 25 Revision 1 April 16/92
7/ May be purchased from the Douglas Aircraft Company as an end item spare.

f/ May be procured from operator's stock.

9/ May be purchased from:

10/ May be purchased from:

Burndy Corporation

266 Brookside Road

Waterbury, Connecticut 06708

Holllngsead International,

Incorporated

13701 Excelsior Drive

Santa Fe Springs, California

11 / May be purchased from:

12/ May be purchased from:

13/ May be purchased from:

14/ May be purchased from:

15/ May be purchased from:

16/ May be purchased from:

17/ May be purchased from:

ITT Corporation

666 East Dyer Road

Santa Ana, California 97202

Leach Corporation

Relay Division

5915 Avalon Boulevard

Los Angeles, California

90003-1309

TA Manufacturing, Incorporated

Subsidiary of Criton Technologies

375 West Arden Avenue

Glendale, California 91209-2500

Custom Control Sensors,

Incorporated

21111 Plummer Street

Chatsworth, California 91311-4905

Alpha Seal

1166 Knollwood Circle

Anaheim, California 92801

Teledyne Controls

Teledyne Industries, Incorporated

12333 West Olympic Boulevard

West Los Angeles, California

90064-1021

Allan Aircraft Supply Company

11643 Vanowen

North Hollywood, California

91609

April 8/91

71468

35344

84971

09049

OG1W3

98571

19280

Bulletin 28-53

Revision 1 April 16/92 Page 26

CAGE

09922

30528

90670
18/ Wire Specification: 22-gage unshielded single conductor tinned copper

wire per Douglas Specification BXS7008 (MIL-W-22759/34), or equivalent.

or

Wire Specification: 22-gage unshielded single conductor nickel plated

copper alloy wire per Douglas Specification BXS7007 (MIL-W-81381/12),

or equivalent.

19/ Wire Specification: 24-gage unshielded single conductor nickel

plated high-strength copper alloy wire per Douglas Specification

BXS7008 (MIL-W-22759/42), or equivalent.

or

Wire Specification: 24-gage unshielded single conductor nickel

plated high-strength copper wire per Douglas Specification BXS7007

(MIL-W-81381/14), or equivalent.

(2) Part to be purchased as an end item spare.

in service kit.

Part No. Oty

Unit

Net

Price Key Word

Part not included

InstructionsDisoosltlon

7961078-549 1 $54.00 Bracket

(3) Part to be procured from operator's stock or sources indicated.

Key Word

InstructionsDisposition

R1133-175-02190 1 Legend Plate 16/

(4) Parts to be procured from source indicated.

New Part No. Otv Key Word Old Part No.

InstructionsDisposition

9934503-578

or

9934503-579

or

9934503-580

or

9934503-581

or

9934503-618

Lightplate

Lightplate

Lightplate

Lightplate

Lightplate

9934503-2

or

9934503-502

or

9934503-524

or

9934503-539

or

9934503-549

NOTE: Required lightplate is to be

determined by the operator.

Bulletin 28-53 April 8/91

Revision 1 April 16/92

Part No.

7/

2z/

20/ 21/

2/ 21/

Otv

Page 27
20/ Part not required if either Service Bulletin 28-54 or 30-64

has been accomplished.

21/ May be purchased from: Bell Industries, Incorporated

18225 Northeast 76th Street

Redmond, Washington

90851-5021

(5) Part to be modified and reidentified by the operator or noted

supplier for aircraft with Smith solid state annunciator panel.

New Part No. Otv Key Word Old Part No.

InstructionsDisposition

102ADP*_* 1 Annunciator

Panel

102ADP*_* z21

22/ To be modified and reidentified by the operator per Smith

Industries Service Bulletin 102ADP-31-220 as applicable.

or

Address and return part for rework and reidentification to:

Smith Industries Aerospace

and Defense Systems, Incorporated

14180 Roosevelt Boulevard

Clearwater, Florida 34622

35012

(6) Part to be modified and reidentified by the operator or noted

supplier.

New Part No. Otv Key Word Old Part No.

InstructionsDisposition

7914390-505 1 Master Warning

and Caution

7914390-501

23/ To be modified and reidentified by the operator per Teledyne

Industries Service Bulletin SBR6357.501A-13-01 as applicable.

or

Address and return

to:

part for modification and reidentification

98571

April 8/91 Bulletin 28-53

Revision 1 April 16/92

CAGE

05617

Page 28
24/ May be purchased from: Hi-Shear Corporation

2600 Skypark Drive

Torrance, California 90509

CAGE

73197

(7) Materials to be procured from operator's stock or sources indicated.

PR-1422 B-2,

Sealant

(DMS 2082)

or

Equivalent

8 Oz

?5/ May be purchased from:

Key Word

Sealant

InstructionsDisposition

2z/

Products Research and

Chemical Corporation

5430 San Fernando Road

Glendale, California 91209

83574

B. The basis for the following material data is per spares.

None.

Any inquiries regarding accuracy, timeliness, completeness, and

legibility of this Service Bulletin should be directed to the

local DAC Field Representative, or:

RZV

LL

Bulletin 28-53 April 8/91

Part No.

Revision 1 April 16/92 Page 29