### Commercial **Airplanes** 

# 737

Service Bulletin **ALERT Number:**  **737-29A1119** Original Issue: August 04, 2015 Revision 1: June 23, 2016 ATA System: 2911 **SUBJECT:** HYDRAULIC POWER - Hydraulic Systems A and B - Wire Bundles and Hydraulic Tube

Clamp Installation Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 300-774). An export license may be required before it is used for development, production or use by foreign persons from specific countries. The controller of this data has the individual responsibility to abide by all export laws. 9E991 ECCN: 

## BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET Copyright © 2015 Boeing. Unpublished Work. All Rights Reserved. Treatment of this document and its content is governed by contract with Boeing. Rights to use this document are licensed on a per aircraft basis and such rights may not be transferable. For more information, contact The Boeing Company. Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner, BBJ, DC-8, DC-9, DC-10, KC-10, KC-46, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8, Poseidon and Boeing liveries are all trademarks owned by The Boeing Company; and no trademark license is granted in connection with this document unless provided in writing by Boeing.

Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 1of52 3.0Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 2of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**

BLANK PAGE**Table of Contents**

Revision Transmittal Sheet

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Summary

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1. PLANNING INFORMATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 A. Effectivity

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1. Airplanes

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2. Spares Affected

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 B. Concurrent Requirements

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 C. Reason

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 D. Description

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 E. Compliance

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 F. Approval

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 G. Manpower

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 H. Weight and Balance Changes

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 I. Electrical Load Data

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 J. References

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 1. Existing Data:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2. Data Supplied with this Service Bulletin:

. . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3. Installation Drawings Used in the Preparation of this Service Bulletin:

. . . . . . . . . . . 31 K. Publications Affected

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 L. Interchangeability and Intermixability of Parts

. . . . . . . . . . . . . . . . . . . . . . . . . . . 32 M. Software Accomplishment Summary

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 2. MATERIAL INFORMATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 A. Material - Price and Availability

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 B. Industry Support Information

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 C. Parts Necessary for Each Airplane

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 1. Kits/Parts

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 2. Parts and Materials Supplied by the Operator

. . . . . . . . . . . . . . . . . . . . . . . . 35 3. Parts Modified and Reidentified

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 4. Parts Removed and Not Replaced

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 D. Parts Necessary to Change Spares

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 E. Special Tooling - Price and Availability

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 F. Special Tooling Necessary to do this Service Bulletin

. . . . . . . . . . . . . . . . . . . . . . . 36 3. ACCOMPLISHMENT INSTRUCTIONS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 A. GENERAL INFORMATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 B. WORK INSTRUCTIONS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 FIGURE 1: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - HYDRAULIC

TUBE AND WIRE BUNDLES - INSPECTION[Group 1]

. . . . . . . . . . . . . . . . . . . 42 FIGURE 2: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - HYDRAULIC

TUBE AND WIRE BUNDLES - INSPECTION[Group 2]

. . . . . . . . . . . . . . . . . . . 44 FIGURE 3: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - CLAMPS -

INSTALLATION[Group 1]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 FIGURE 4: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - CLAMPS -

INSTALLATION[Group 2]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 APPENDIX A: PART DEMAND INTENT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 3of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 4of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**

BLANK PAGE

### Commercial **Airplanes** 

# 737

Service Bulletin **ALERT Revision Transmittal Sheet**  **Number: 737-29A1119**  Original Issue: August 04, 2015 Revision 1: June 23, 2016 ATA System: 2911 **SUBJECT:** HYDRAULIC POWER - Hydraulic Systems A and B - Wire Bundles and Hydraulic Tube

Clamp Installation This revision includes all pages of the service bulletin. **COMPLIANCE INFORMATION RELATED TO THIS REVISION** Federal Aviation Administration (FAA) Notice of Proposed Rule Making NPRM 2015-NM-144-AD, is related to this service bulletin. Effects of this Revision on airplanes on which the Original Issue was previously done: None. **REASON FOR REVISION** This revision is sent to incorporate changes identified during validation of the Original Issue. Also, the work instructions have been rewritten to improve operator usability. As a part of a service bulletin validation program, this change was completed on airplane YM346 by Service Bulletin 737-29A1119 Original Issue before the release of Revision 1 of this service bulletin. The change completed on airplane YM346 by Service Bulletin 737-29A1119 Original Issue is equivalent to the release of Revision 1 of this service bulletin. Airplane YM346 has the configuration of a Group 1 airplane. The data given in Information Notice 737-29A1119 IN01 and IN02 is included in this revision. These sections were changed: 1. Summary: Added validation summary, updated Summary Evaluation Table. 2. Paragraph 1.C. Reason: Added validation summary. 3. Paragraph 1.E. Compliance: Deleted compliance table and updated boilerplate. Added reference to NPRM. 4. Paragraph 1.J.1. References: Changed references. 5. Paragraph 1.K.1. Publications Affected: Changed publication. 6. Paragraph 2.A. Material - Price and Availability: Updated kit pricing.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 5of527. Paragraph 2.C.1. Parts Necessary for Each Airplane: Changed part number.

8. Paragraph 3.A. General Information: Updated notes. 9. Paragraph 3.B. Work Instructions: Consolidated work instructions, removed references to parts, conditions, and actions, added Required for Compliance (RC) notation. 10. Paragraph 3.B. Work Instructions, Step 14.a: Changed reference. 11. FIGURE 1 and FIGURE 2, Step Table: Changed reference. 12. FIGURE 3 and FIGURE 4, Step Table: Changed part number and Footnote (a), corrected part number in Footnote (b), deleted interal reference in Step 1. 13. Appendix A: Deleted Logic Diagram. Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity and format changes, to show the location of all content changes. Pages with no vertical lines have no changes. **REVISION HISTORY** August 04, 2015 Original Issue: June 23, 2016 Revision 1:

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 6of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**

### Commercial **Airplanes** 

# 737

Service Bulletin **ALERT Summary**  **Number: 737-29A1119**  Original Issue: August 04, 2015 Revision 1: June 23, 2016 ATA System: 2911 **SUBJECT:** HYDRAULIC POWER - Hydraulic Systems A and B - Wire Bundles and Hydraulic Tube

Clamp Installation THIS DOCUMENT IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH 1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS DOCUMENT TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS DOCUMENT TO THE NEW OWNER. **CONCURRENT REQUIREMENTS** None. **BACKGROUND** This service bulletin is sent to prevent possible wire chafing damage to wire bundles W6128 and W8122 caused by insufficient separation from a hydraulic tube in the Main Landing Gear (MLG) wheel well. If this service bulletin is not done, wire chafing between the wire bundle and hydraulic tube could cause arcing and a loss of hydraulic fluid, which may result in a wheel well fire. Boeing has received a report of damage to wire W6128-0506-10. The wire had chafed and arced to an adjacent hydraulic tube located in the forward bulkhead of the MLG wheel well. The chafing and electrical arc created a small hole in the System B hydraulic tube and also caused damage to the wire bundle, which resulted in a ground fault detection on the System A Electrical Motor-Driven Pump (EMDP). The small hole led to a total loss of System B hydraulic fluid and the ground fault resulted in removal of power from the System A EMDP and illumination of the System A EMDP low power light. Boeing investigated this problem and found that there was not sufficient separation between the wire bundles W6128 and W8122 and the adjacent hydraulic tube at that location. As a result, Boeing is issuing this service bulletin to add clamps to separate the wire bundles from the hydraulic tube on airplanes from line number 1060 and on. Airplanes before line number 1060 do not need this change because of a configuration difference in the applicable area. This change will be incorporated on in-production airplanes starting at line number 5432. Boeing Service Related Problem (SRP) 737NG-SRP-29-0112is related to this service bulletin. Boeing Fleet Team Digest (FTD)737NG FTD 29-15001is related to this service bulletin. As a part of a service bulletin validation program, this change was completed on airplane YM346 by Service Bulletin 737-29A1119 Original Issue before the release of Revision 1 of this service bulletin. The change completed on airplane YM346 by Service Bulletin 737-29A1119 Original Issue is equivalent to the release of Revision 1 of this service bulletin. Airplane YM346 has the configuration of a Group 1 airplane.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 7of52This table is provided to operators for planning purposes only. Refer to the applicable sections for more

information.
**Reference Affected**  **Planning Data** Paragraph 1.A.2., Spares Affected No Spares Affected Paragraph 1.E., Complianceand Paragraph 1.F., Approval Yes AD Related Paragraph 1.H., Weight and Balance Changes No Weight and Balance Change Paragraph 1.I., Electrical Load Data No Electrical Load Changed Paragraph 1.K., Publications Affected Yes Publications Affected Paragraph 1.K., Publications Affected No Airplane Flight Operations Affected (Flight CrewOperations Manual and/or FAA Approved Airplane Flight Manual) Paragraph 2.C.1., Kits/Parts Yes Kits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator Yes Operator Supplied Parts/Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin No Special Tooling Required

**ACTION** In the right side of the Main Landing Gear wheel well, do a Detailed Inspection for damage of wire bundles and a hydraulic tube. If the wire bundles are found to be damaged, repair as necessary. If the hydraulic tube is found to be damaged, replace or repair as necessary. Install clamps and an optional spacer between the wire bundle and hydraulic tube. Do a test of applicable electrical systems if the wire bundle was repaired. Service the hydraulic system if the hydraulic tube was replaced or repaired. **EFFECTIVITY** 737-600, -700, -700C, -800, -900 and -900ER Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplane(s). **COMPLIANCE** Refer to Paragraph 1.E., Compliance

. **INDUSTRY SUPPORT INFORMATION** Boeing warranty remedies are not available for the configuration changes, inspection, and repair procedures given in this service bulletin. **MANPOWER** Refer to Paragraph 1.G., Manpower

.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 8of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT MATERIAL INFORMATION** 

Boeing Supplied Kits/Parts. Refer to Paragraph 2.A., Material - Price and Availability

. Operators are encouraged to complete the survey provided inAPPENDIX Aof this service bulletin to help Boeing predict the quantity and timing of the Boeing Supplied Kits/Parts.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 9of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 10of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**

### Commercial **Airplanes** 

# 737

Service Bulletin **ALERT Number:**  **737-29A1119** Original Issue: August 04, 2015 Revision 1: June 23, 2016 ATA System: 2911 **SUBJECT:** HYDRAULIC POWER - Hydraulic Systems A and B - Wire Bundles and Hydraulic Tube

Clamp Installation THIS DOCUMENT IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH 1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS DOCUMENT TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS DOCUMENT TO THE NEW OWNER. **1. PLANNING INFORMATION A.**  **Effectivity** 1. Airplanes Refer to Service Bulletin Index D6-19567Part 3 for Airplane Variable Number, Line Number, and Serial Number data. This service bulletin is applicable to 737-600, -700, -700C, -800, -900 and -900ER Airplanes, line numbers 1060 to 5431 in 2 Groups. The Variable Numbers and Group Information for the applicable airplanes is given below.
**DESCRIPTION CONFIGURATION**  **GROUP** 737-600/700/800/900 with Hydraulic Tube P/N 272A4451-56 adjacent to W6128 and W8122. - 1
737-600/700/800/900 with Hydraulic Tube P/N 272A4451-1044 adjacent to W6128 and W8122. - 2

Airplane Models: 737-600, 737-700, 737-700C, 737-800, 737-900, 737-900ER **Group Variable Number**  1 YA119 - YA199 1 YA211

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 11of52**Group Variable Number**  1 YA221 1 YA341 - YA345 1 YA357 1 YA367 1 YA371 - YA377 1 YA551 - YA552 1 YA630 - YA631 1 YA636 1 YA641 - YA642 1 YA648 - YA650 1 YA657 - YA659 1 YA666 - YA667 1 YA671 - YA672 1 YA691 1 YA707 - YA710 1 YA835 1 YA857 - YA862 1 YA967 - YA978 1 YB111 - YB132 1 YB156 - YB158 1 YB163 - YB164 1 YB184 1 YB206 - YB208 1 YB306 - YB310 1 YB371 - YB392 1 YB522 - YB526 1 YB541 - YB544 1 YB551 1 YB561 - YB598 1 YB601 - YB635 2 YB636 1 YB651 1 YB656

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 12of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 1 YB671 - YB672 1 YB851 - YB863 1 YB871 - YB874 1 YB881 - YB893 1 YB901 - YB903 1 YB911 1 YB961 - YB974 2 YB975 2 YB981 1 YB986 - YB995 2 YB996 - YB998 1 YC029 - YC030 1 YC083 - YC084 1 YC091 - YC095 1 YC168 - YC170 1 YC176 - YC179 1 YC186 - YC190 1 YC201 - YC203 1 YC206 - YC207 1 YC304 - YC305 1 YC383 - YC387 1 YC393 - YC394 1 YC415 1 YC422 1 YC427 - YC428 1 YC436 - YC439 1 YC490 - YC499 1 YC525 - YC526 1 YC582 - YC583 1 YC654 - YC655 1 YC738 - YC750 1 YC881 - YC892 1 YC921 - YC922

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 13of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 1 YC949 - YC951 1 YC977 - YC978 1 YD006 - YD007 1 YD054 - YD057 1 YD108 - YD110 2 YD111 - YD117 1 YD153 - YD159 1 YD208 - YD209 1 YD216 - YD219 1 YD252 - YD254 1 YD256 - YD257 1 YD261 1 YD317 - YD334 1 YD391 1 YD408 - YD410 1 YD412 - YD416 2 YD417 - YD422 1 YD481 - YD485 1 YD491 - YD499 1 YD507 - YD512 1 YD535 1 YD543 - YD547 1 YD561 - YD564 1 YD571 - YD572 1 YD591 - YD595 1 YD612 1 YD651 - YD655 1 YE204 - YE206 1 YE301 - YE305 1 YE321 - YE326 1 YE371 - YE383 1 YF001 - YF007 2 YF008 - YF011

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 14of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 1 YF021 - YF040 2 YF041 - YF045 1 YF046 - YF047 2 YF048 - YF049 1 YF051 - YF060 2 YF061 - YF080 1 YF086 2 YF087 1 YF106 - YF107 1 YF111 - YF114 1 YF116 - YF117 2 YF118 - YF119 1 YF121 - YF124 2 YF125 - YF132 1 YF176 - YF178 1 YF191 - YF192 1 YF201 - YF251 2 YF252 - YF276 1 YF401 - YF402 2 YF431 - YF432 2 YF436 - YF437 1 YF441 2 YF442 1 YF451 - YF455 2 YF456 - YF460 1 YF501 - YF585 2 YF586 - YF599 2 YF601 - YF677 1 YF701 - YF706 2 YF707 1 YF801 - YF803 2 YF804 - YF805 1 YF831 - YF832

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 15of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 1 YF836 - YF837 2 YF838 2 YF871 - YF872 1 YF901 - YF903 2 YF904 - YF905 1 YF921 - YF922 2 YF923 - YF928 2 YF951 - YF954 1 YG043 - YG044 1 YG083 - YG089 1 YG091 - YG099 1 YG101 - YG103 2 YG104 1 YG111 - YG114 1 YG116 - YG125 2 YG126 - YG143 1 YG201 - YG205 1 YG211 - YG214 1 YG221 - YG223 2 YG224 1 YG251 - YG252 1 YG505 - YG509 2 YG510 - YG514 1 YG701 1 YG711 1 YH001 - YH012 1 YH031 - YH049 2 YH050 1 YH051 - YH055 2 YH071 - YH080 1 YH101 - YH130 2 YH131 - YH132 1 YH201 - YH202

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 16of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 1 YH206 - YH207 1 YH301 - YH305 2 YH306 1 YH321 - YH322 2 YH501 - YH542 2 YH551 - YH594 2 YH601 - YH606 2 YH611 - YH620 2 YH631 - YH632 2 YH636 - YH637 2 YH641 2 YH681 - YH682 2 YH701 - YH725 2 YH751 - YH754 2 YH801 - YH840 2 YH901 - YH905 2 YH911 - YH914 2 YH951 - YH952 1 YJ001 - YJ013 1 YJ021 1 YJ472 - YJ480 1 YJ514 - YJ517 1 YJ531 - YJ578 2 YJ579 1 YJ591 - YJ599 1 YJ631 - YJ632 1 YJ671 - YJ694 1 YJ801 - YJ867 1 YJ871 - YJ880 1 YJ901 - YJ904 1 YJ908 - YJ929 1 YJ931 - YJ937 1 YJ941 - YJ956

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 17of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 2 YJ961 1 YJ976 - YJ977 1 YK001 - YK007 1 YK101 - YK104 1 YK111 - YK112 1 YK121 - YK122 1 YK131 - YK133 1 YK136 - YK139 1 YK141 - YK142 1 YK146 - YK148 1 YK151 - YK154 1 YK161 - YK167 1 YK171 1 YK176 - YK177 1 YK186 1 YK191 1 YK196 1 YK201 - YK202 1 YK301 - YK314 1 YK321 - YK340 1 YK361 - YK378 1 YK401 - YK406 1 YK426 - YK427 1 YK431 - YK450 1 YK456 - YK466 2 YK467 1 YK471 2 YK472 - YK473 1 YK476 1 YK480 - YK487 2 YK491 - YK493 1 YK495 - YK497 2 YK498 - YK499

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 18of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 1 YK511 - YK516 1 YK521 - YK530 1 YK551 - YK571 1 YK576 - YK577 1 YK580 - YK585 1 YK601 - YK602 1 YK606 - YK607 1 YK611 - YK616 1 YK621 - YK634 1 YK641 - YK644 1 YK651 - YK665 1 YK671 - YK672 1 YK676 - YK677 1 YK681 - YK686 1 YK691 2 YK695 - YK699 1 YK701 - YK713 1 YK716 - YK719 1 YK721 - YK741 1 YK751 - YK770 1 YK776 - YK778 1 YK781 - YK782 2 YK783 - YK785 1 YK791 - YK792 1 YK796 - YK797 1 YK801 - YK899 1 YK901 - YK912 1 YK918 - YK919 1 YK921 - YK927 2 YK928 - YK929 1 YK941 - YK956 2 YK957 - YK960 1 YK961 - YK992

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 19of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 2 YK993 - YK999 1 YL001 - YL005 1 YL011 - YL016 1 YL021 - YL024 1 YL051 - YL052 1 YL056 - YL057 1 YL061 1 YL066 - YL069 1 YL076 - YL077 1 YL101 - YL133 2 YL134 - YL137 1 YL201 - YL219 2 YL220 - YL237 2 YL241 - YL242 1 YL271 - YL272 1 YL281 - YL284 1 YL301 - YL303 1 YL311 - YL312 2 YL313 - YL314 1 YL316 - YL321 1 YL351 - YL353 1 YL371 - YL374 1 YL401 1 YL421 - YL429 1 YL431 - YL444 1 YL461 - YL478 1 YL501 - YL509 1 YL531 - YL534 1 YL541 - YL544 2 YL545 - YL551 1 YL561 - YL568 2 YL569 - YL579 1 YL591 - YL594

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 20of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 2 YL595 - YL598 1 YL601 - YL606 1 YL611 - YL612 1 YL616 - YL617 1 YL621 1 YL626 1 YL631 - YL634 2 YL636 - YL637 1 YL661 - YL664 1 YL676 - YL681 2 YL682 - YL690 1 YL691 2 YL696 - YL697 1 YL701 - YL704 2 YL705 - YL707 1 YL731 1 YL751 - YL752 2 YL756 - YL757 1 YL761 - YL772 2 YL773 - YL780 2 YL796 - YL797 1 YL801 - YL809 2 YL810 - YL815 1 YL901 - YL910 1 YL921 - YL937 2 YL938 - YL940 1 YL951 - YL963 2 YL964 - YL968 1 YM101 - YM103 1 YM201 - YM242 2 YM243 - YM244 1 YM251 - YM299 1 YM301 - YM393

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 21of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 2 YM394 - YM399 2 YM401 - YM415 1 YM471 1 YM481 - YM484 1 YM501 - YM515 1 YM521 - YM522 1 YM541 1 YM551 - YM553 1 YM571 - YM572 1 YM581 - YM582 1 YM591 - YM599 1 YM631 - YM634 1 YM641 - YM652 1 YM671 - YM674 1 YM691 - YM697 2 YM698 - YM699 1 YM701 - YM710 1 YM761 - YM763 2 YM764 - YM765 2 YM771 - YM779 1 YN001 - YN016 1 YN021 - YN024 1 YN061 1 YN071 - YN082 1 YN091 - YN092 1 YN101 - YN112 1 YN121 2 YN126 1 YN201 - YN202 1 YN211 - YN219 1 YN231 - YN235 2 YN236 1 YN261

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 22of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 2 YN501 2 YN531 - YN534 2 YN551 - YN563 2 YN581 - YN585 2 YN591 - YN592 2 YN601 - YN606 2 YN651 - YN653 2 YN701 - YN702 2 YN741 - YN746 2 YN756 1 YQ001 - YQ003 1 YQ011 2 YQ012 - YQ021 1 YQ026 2 YQ027 - YQ029 2 YQ036 - YQ045 2 YQ201 - YQ207 2 YQ231 2 YQ241 - YQ251 2 YQ281 - YQ284 2 YQ291 - YQ296 2 YQ301 - YQ302 2 YQ321 - YQ324 2 YQ331 - YQ334 2 YQ346 - YQ347 2 YQ351 2 YQ401 - YQ403 2 YQ451 - YQ454 2 YQ456 2 YQ461 2 YQ471 2 YQ501 - YQ519 2 YR001 - YR041

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 23of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 2 YR051 - YR087 2 YR091 - YR098 2 YR101 - YR105 2 YR111 - YR124 2 YR126 - YR144 2 YR166 - YR182 2 YR186 - YR198 2 YR201 - YR204 2 YR231 - YR294 2 YR296 - YR297 2 YR301 - YR334 2 YR338 - YR341 2 YR361 - YR366 2 YR371 - YR373 2 YR376 2 YR381 - YR382 2 YR386 - YR388 2 YR391 2 YR396 - YR398 2 YR401 - YR405 2 YR411 - YR413 2 YR416 - YR418 2 YR421 - YR424 2 YR426 - YR439 2 YR441 - YR455 2 YR457 - YR499 2 YR501 - YR506 2 YR511 - YR520 2 YR526 - YR544 2 YR546 - YR551 2 YR556 - YR562 2 YR571 - YR582 2 YR591 - YR592

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 24of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 2 YR601 - YR605 2 YR616 - YR658 2 YR661 - YR663 2 YR671 - YR672 2 YR676 - YR678 2 YR681 2 YR701 - YR769 2 YR771 - YR799 2 YR801 - YR816 2 YR831 - YR838 2 YR841 - YR891 2 YR901 - YR903 2 YR931 - YR934 2 YR938 - YR944 2 YR951 - YR970 2 YR981 - YR996 2 YS001 - YS002 2 YS006 - YS009 2 YS031 - YS032 2 YS051 - YS073 2 YS101 - YS120 2 YS126 - YS135 2 YS151 - YS160 2 YS166 - YS194 2 YS196 - YS197 2 YS201 - YS209 2 YS221 - YS225 2 YS231 - YS236 2 YS271 - YS286 2 YS301 - YS333 2 YS351 - YS365 2 YS371 - YS374 2 YS381 - YS383

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 25of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 2 YS401 2 YS451 2 YS456 - YS457 2 YS462 2 YS467 2 YS501 - YS502 2 YS506 2 YS511 - YS513 2 YS551 - YS553 2 YS561 - YS578 2 YS581 - YS595 2 YS601 - YS690 2 YS701 - YS708 2 YS721 - YS755 2 YS761 - YS762 2 YS771 - YS780 2 YS806 - YS810 2 YS816 - YS818 2 YS823 - YS825 2 YS851 - YS860 2 YS876 2 YS881 - YS883 2 YS901 - YS909 2 YS911 - YS925 2 YS961 - YS965 2 YS981 - YS983 2 YS991 - YS996 2 YT001 - YT004 2 YT006 2 YT026 - YT027 2 YT031 - YT032 2 YT036 - YT038 2 YT061 - YT068

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 26of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group**  **Variable Number** 2 YT101 - YT109 2 YT126 - YT129 2 YT136 - YT138 2 YT176 - YT181 2 YT196 - YT197 2 YT201 2 YT206 - YT207 2 YT211 - YT212 2 YT251 - YT270 2 YT301 - YT303 2 YT306 - YT307 2 YT311 - YT312 2 YT321 - YT323 2 YT401 - YT403 2 YT411 - YT415 2 YT427 2 YT461 - YT471 2 YT491 - YT492 2 YT501 2 YT551 2 YT556 2 YT561 2 YT601 - YT606 2 YT761 - YT776 2 YT796 2 YT801 - YT803 2 YT811 2 YT831 2 YT891 - YT894 2 YT901 - YT906 2 YU001 - YU042 2 YU201 - YU211 2 YV101 - YV104

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 27of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**2. Spares Affected None. **B. Concurrent Requirements**  None. **C. Reason**  This service bulletin is sent to prevent possible wire chafing damage to wire bundles W6128 and W8122 caused by insufficient separation from a hydraulic tube in the Main Landing Gear (MLG) wheel well. If this service bulletin is not done, wire chafing between the wire bundle and hydraulic tube could cause arcing and a loss of hydraulic fluid, which may result in a wheel well fire. Boeing has received a report of damage to wire W6128-0506-10. The wire had chafed and arced to an adjacent hydraulic tube located in the forward bulkhead of the MLG wheel well. The chafing and electrical arc created a small hole in the System B hydraulic tube and also caused damage to the wire bundle, which resulted in a ground fault detection on the System A Electrical Motor-Driven Pump (EMDP). The small hole led to a total loss of System B hydraulic fluid and the ground fault resulted in removal of power from the System A EMDP and illumination of the System A EMDP low power light. Boeing investigated this problem and found that there was not sufficient separation between the wire bundles W6128 and W8122 and the adjacent hydraulic tube at that location. As a result, Boeing is issuing this service bulletin to add clamps to separate the wire bundles from the hydraulic tube on airplanes from line number 1060 and on. Airplanes before line number 1060 do not need this change because of a configuration difference in the applicable area. This change will be incorporated on in-production airplanes starting at line number 5432. Boeing Service Related Problem (SRP)737NG-SRP-29-0112is related to this service bulletin. Boeing Fleet Team Digest (FTD)737NG FTD 29-15001is related to this service bulletin. As a part of a service bulletin validation program, this change was completed on airplane YM346 by Service Bulletin 737-29A1119 Original Issue before the release of Revision 1 of this service bulletin. The change completed on airplane YM346 by Service Bulletin 737-29A1119 Original Issue is equivalent to the release of Revision 1 of this service bulletin. Airplane YM346 has the configuration of a Group 1 airplane. Revision 1 is sent to incorporate changes identified during validation of the Original Issue. Also, the work instructions have been rewritten to improve operator usability.. **D. Description**  In the right side of the Main Landing Gear wheel well, do a Detailed Inspection for damage of wire bundles and a hydraulic tube. If the wire bundles are found to be damaged, repair as necessary. If the hydraulic tube is found to be damaged, replace or repair as necessary. Install clamps and an optional spacer between the wire bundle and hydraulic tube. Service the hydraulic system if the hydraulic tube was replaced or repaired. Do a test of applicable electrical systems if the wire bundle was repaired. Effects of this Revision on airplanes on which the Original Issue was previously done: None.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 28of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**The work in this service bulletin is done in the maintenance zone(s) given below. **Group 1:**
**Affected Maintenance Zones Zone**  **Model** 134 737-600, 737-700, 737-700C, 737-800, 737-900, 737-900ER **Group 2:**
**Affected Maintenance Zones Zone**  **Model** 134 737-700, 737-700C, 737-800, 737-900ER
**E. Compliance**  Federal Aviation Administration (FAA) Notice of Proposed Rule Making NPRM 2015-NM-144-AD, is related to this service bulletin. Boeing recommends that the inspectionand changegiven in this service bulletin be done within 24 months after the original issue date of this service bulletin. If any wire bundle or hydraulic tube damage is found, repair or replace as given in this service bulletin before further flight. Do the required actions in accordance with Paragraph 3. Accomplishment Instructions. **F. Approval**  This service bulletin was examined by the Federal Aviation Administration (FAA). The changes specified in this service bulletin comply with the applicable regulations and are FAA approved, as well as European Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/JAA approved airplanes listed in the service bulletin effectivity. This service bulletin and its approval were based on the airplane in its original Boeing delivery configuration or as modified by other approved Boeing changes. For 737-700C and BBJ models that have APB winglets installed by STC number ST00830SE, the operator is responsible for obtaining appropriate regulatory agency approval before incorporating this service bulletin if the bulletin is in the area affected by blended winglets. 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.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 29of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT G.**  **Manpower**

The table below shows an estimate of the task hours necessary to do this inspection/repair and change for each airplane. This estimate is for direct labor only, done by an experienced crew. Adjust the estimate with operator task hour data if necessary. The estimate does not include lost time. These are some examples of lost time:

• Time to adjust to the workplace

• Time to schedule the work

• Time to inspect the work

• Time to cure the materials

• Time to make the parts

• Time to find the tools.
**Group 1: Elapsed Hours**  **Task Hours Number of Persons**  **Task** 0.50 0.50 1 Open Access 0.25 0.25 1 FIGURE 1 0.35 0.35 1 FIGURE 3 0.50 0.50 1 Close Access 1.60 1.60 TOTAL FOR EACH AIRPLANE (a) (a) Estimate assumes no damage is found on wire bundles or hydraulic tube. If damage is found, more time is necessary. **Group 2: Elapsed Hours**  **Task Hours Number of Persons**  **Task** 0.50 0.50 1 Open Access 0.25 0.25 1 FIGURE 2 0.35 0.35 1 FIGURE 4 0.50 0.50 1 Close Access 1.60 1.60 TOTAL FOR EACH AIRPLANE (a) (a) Estimate assumes no damage is found on wire bundles or hydraulic tube. If damage is found, more time is necessary.
**H. Weight and Balance Changes**  None. **I. Electrical Load Data**  Not changed.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 30of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT J.**  **References** 1. Existing Data:

a. Boeing Service Related Problem (SRP)737NG-SRP-29-0112 b. Federal Aviation Administration (FAA) Notice of Proposed Rule Making (NPRM) 2015-NM-144-AD

c. Service Bulletin Index D6-19567 d. Standard Overhaul Practices Manual (SOPM)20-50-01

e. Standard Wiring Practices Manual (SWPM)20-10-11,20-10-12,20-10-13,20-10-19 f. 737-600/700/800/900 Aircraft Maintenance Manual (AMM) 12-12-00,20-10-51,24-22-00, 27-09-31,27-09-61,27-61-12,27-81-00,28-21-00,29-09-00,29-11-00,29-11-21,29-21-00, 29-22-00,29-22-31,29-32-00,31-51-00,32-00-01, 33-42-02 g. 737-600/700/800/900 Wiring Diagram Manual (WDM)27-23-11,27-23-14,27-61-11,27-81-51, 28-21-11,29-11-12,29-23-11,29-25-11,29-34-11,31-31-15,31-53-11,33-42-11 h. 737NG Fleet Team Digest (FTD)29-15001 2. Data Supplied with this Service Bulletin: None. 3. Installation Drawings Used in the Preparation of this Service Bulletin:
**Title Drawing Number**  WIRE BUNDLE INSTL - MAIN WHEEL WELL FWD BULKHEAD STA 663.75 288A4434 HYDRAULIC PLUMBING INSTL - MAIN WHEEL WELL, REAR SPAR 272A4401
The table above lists applicable drawings used to prepare this service bulletin. The drawings are not necessary to make the specified changes, and are not supplied with this service bulletin. The drawings may not be applicable to all airplane configurations or operators. **K. Publications Affected**  1. Publications: **Chapter-Section Publication**  29-11 737 Aircraft Maintenance Manual 29-32 737 Illustrated Parts Catalog
2. Damage Tolerance Based Structural Inspections:

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 31of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**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. **M. Software Accomplishment Summary**  Not affected.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 32of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT 2. MATERIAL INFORMATION**  **A. Material - Price and Availability**  Boeing can supply the kit shown in Paragraph 2.C., Parts Necessary for Each Airplane. Operators are encouraged to share schedule requirements with Boeing for incorporation of the service bulletin. The kits are subject to the terms and conditions of the Boeing standard purchase order acknowledgment. Prices are in United States Dollars. Terms: Net 30 days. Reference this service bulletin and submit your purchase order by one of these methods: 1. Order on-line via ATA Spec 2000 or The Boeing PART Page 2. Fax to (206) 662-7145 **REFER TO THE BOEING PART PAGE ON MYBOEINGFLEET.COM OR CONTACT FIRST RESPONDER AT FR@BOEING.COM FOR THE LATEST REORDER LEAD TIME (ROLT) AND PRICE INFORMATION** 
**Unit Price as of the original issue** **date of this Ser vice Bulletin (US**  **Dollars) ROLT as of the**  **original issue date of this Ser** **vice Bulletin (Cal endar Days)**  **QTY Date**  **Name Kit Number** 

36.00 225 1 September 15, 2015Top Kit - Wire Bundle/Hydraulic Tube Clamp Installation 002A0014-116
25 December 10, 2015 25 December 17, 2015 25 January 4, 2016 25 January 11, 2016 25 January 18, 2016 25 January 25, 2016 25 February 1, 2016 25 February 8, 2016 Operators are encouraged to complete the survey provided inAPPENDIX Aof this service bulletin to help Boeing predict the quantity and timing of the Boeing Supplied Kits/Parts.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 33of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT B.**  **Industry Support Information**

Boeing warranty remedies are not available for the (configuration changes, inspection, and/or repair procedures) given in this service bulletin. **C. Parts Necessary for Each Airplane**  1. Kits/Parts **ALL**
**Kit 002A0014 Notes**  **Existing Part Number**  **Name Qty**  **New Part Number -116**  Top Kit - Wire Bundle/Hydraulic Tube Clamp Installation - 002A0014-116

CLAMP,LOOP

1 AS21919WCE10 (a) WIRE BUNDLE CLAMP 1 BACC10JU104 (BACC10GU104 or BACC10JU104P optional) (a) WIRE BUNDLE CLAMP 1 BACC10JU105 (BACC10GU105 or BACC10JU105P optional) (a) WIRE BUNDLE CLAMP 1 BACC10JU106 (BACC10GU106 or BACC10JU106P optional) NUT

1 BACN10JC3CD (a) (b) SCREW 1 BACS12GU3K12 (a) (b) SCREW 1 BACS12GU3K16 (a) (b) SCREW 1 BACS12GU3K20 (a) (b) SCREW 1 BACS12GU3K24 (a) (b) SCREW 1 BACS12GU3K28 (a) (b) SCREW 1 BACS12GU3K32 (a) (b) SCREW 1 BACS12GU3K36 (a) (b) SCREW 1 BACS12GU3K8 WASHER

1 NAS1149D0316J (a) (b) SPACERS FOR RIVETS 1 NAS42DD6-112FC

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 34of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT ALL** 
**Kit 002A0014 Notes**  **Existing Part Number**  **Name Qty**  **New Part Number -116**  (a) (b) SPACERS FOR RIVETS 1 NAS42DD6-128FC (a) (b) SPACERS FOR RIVETS 1 NAS42DD6-16FC (a) (b) SPACERS FOR RIVETS 1 NAS42DD6-32FC (a) (b) SPACERS FOR RIVETS 1 NAS42DD6-48FC (a) (b) SPACERS FOR RIVETS 1 NAS42DD6-64FC (a) (b) SPACERS FOR RIVETS 1 NAS42DD6-80FC (a) (b) SPACERS FOR RIVETS 1 NAS42DD6-96FC (a) There are more parts than are necessary. (b) If grip length shown is not available at Boeing, fasteners supplied in kits may be one grip length longer than indicated. Also, if any fastener part numbers listed are not available or have been superseded, substitute fasteners may be supplied in kits.
2. Parts and Materials Supplied by the Operator The following parts or materials are necessary to do the change in this service bulletin. Parts and materials in the manuals given in Paragraph 1.J., References, can also be necessary. Examine operator part and material supply to make sure all necessary parts and materials are available. **Group 1:**
**Notes Name**  **QTY Part Number/**  **Specification** (a) HYDRAULIC TUBE 1 272A4451-56 (a) This part is only necessary if the existing hydraulic tube is found to be damaged, and is replaced. The existing hydraulic tube can also be repaired.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 35of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Group 2:** 
**Notes Name**  **QTY Part Number/**  **Specification** (a) HYDRAULIC TUBE 1 272A4451-1044 (a) This part is only necessary if the existing hydraulic tube is found to be damaged, and is replaced. The existing hydraulic tube can also be repaired.
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.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 36of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT 3. ACCOMPLISHMENT INSTRUCTIONS**  **A. GENERAL INFORMATION**  **CAUTION:** KEEP THE WORK AREA, WIRES AND ELECTRICAL BUNDLES CLEAN OF METAL

PARTICLES OR CONTAMINATION WHEN YOU USE TOOLS. UNWANTED MATERIAL, METAL PARTICLES OR CONTAMINATION CAUGHT IN WIRE BUNDLES CAN CAUSE DAMAGE TO THE BUNDLES. DAMAGED WIRE BUNDLES CAN CAUSE SPARKS OR OTHER ELECTRICAL DAMAGE. **NOTE:** 1. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for

definition of the acronyms. 2. Obey all of the warnings and cautions given in the specified manual sections. 3. Unless shown differently, these dimensions and tolerances are used:

– Linear dimensions are in inches

– Tolerance on linear dimensions, other than rivet and bolt edge margins, is plus or minus 0.03 inch

– Tolerance on rivet and bolt edge margin is plus or minus 0.05 inch

– Angular tolerance is plus or minus 2 degrees

– Hole dimensions for standard solid rivets and fasteners are in Structural Repair Manual (SRM) Chapter 51

– Torque Values:

— Values for structural fasteners are given in 737 Structural Repair Manual, Chapter 51.

— Values for airframe maintenance tasks are included in Chapter 20 of 737 Aircraft Maintenance Manual (AMM).

— Values for electrical maintenance tasks are included in Chapter 20 of Standard Wiring Practices Manual (SWPM).

— Values for engine maintenance tasks are included in Chapter 70 of 737 Aircraft Maintenance Manual (AMM).

— Non-standard torque values for maintenance tasks are included in the applicable installation step.

4. Use the approved fastener, process and material substitutions in accordance with

SRM Chapter 51. 5. Refer to theSWPM 20-10-11andSWPM 20-10-12for the wire installation procedures,

andSWPM 20-10-19for the wire separation requirements, as accepted procedures. 6. The necessary conditions for selection of clamp type and size are included inSWPM 20-10-12. If any wire bundle support clamp specified in this service bulletin does not make a correct fit on the wire bundle, refer to SWPM 20-10-12as an accepted procedure to select a clamp that fits correctly.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 37of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**7. If the length of any fastener specified in this service bulletin does not meet installation standards given in SRM Chapter 51, then a fastener of the same specification, or an approved substitute, with a length which meets the installation standards given in SRM Chapter 51 may be used. In addition, washers may be installed for fastener grip length in accordance with SRM Chapter 51. Refer toSOPM 20-50-01for alternate full threaded fasteners (screws) needed for installation in this service bulletin. 8. A Detailed Inspection is defined as: An intensive examination of a specific item,

installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirrors, magnifying lenses, etc. may be necessary. Surface cleaning and elaborate procedures may be required. 9. These work instructions refer to procedures included in other Boeing documents. When the words "refer to" are used and the operator has an accepted alternative procedure, the accepted alternative procedure can be used. When the words "in accordance with" are included in the instruction, the procedure in the Boeing document must be used. 10. If it is necessary to remove more parts for access, you can remove those parts. If you can get access without removing identified parts, it is not necessary to remove all of the identified parts. Jacking and shoring limitations must be observed. 11. Where the work instructions include installation of a kept part, a new or serviceable part with the same part number can be installed as an alternative to the kept part. 12. This service bulletin includes functional test procedures for the systems changed by this service bulletin. More functional tests can possibly be necessary in accordance with standard maintenance practices because of interruption to other airplane systems. 13. Use of colors in Figures is based on guidance from the ATA e-Business Program (ATA) iSpec 2200. 14. The compliance times for the actions in Paragraph 3.B., WORK INSTRUCTIONS are in Paragraph 1.E., Compliance

. 15. Some steps in the Work Instructions are labeled as Required for Compliance (RC). If this service bulletin is mandated by an Airworthiness Directive (AD), then the steps labeled as RC, including sub-steps under an RC step and any figures identified in an RC step, must be done to comply with the AD. An Alternative Method of Compliance (AMOC) is required for any deviations to RC steps, including sub-steps and identified figures. Steps not labeled as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC. This is provided that the RC steps, including sub-steps and identified figures, can still be done as specified, and the airplane can be put back in an airworthy condition. **B. WORK INSTRUCTIONS**  1. Install downlock pins in all landing gears. Refer to 737-600/700/800/900 AMM 32-00-01as an accepted procedure. 2. Put chocks around the tires of all landing gears.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 38of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**3. Remove electrical power from the airplane. Refer to 737-600/700/800/900 AMM 24-22-00as an accepted procedure. 4. Get access to the right side of the Main Landing Gear wheel well in the forward bulkhead area. 5. RC - Do a Detailed Inspection of the wire bundles and hydraulic tube for damage, in accordance with the applicable figure below.

a. **Group 1:** FIGURE 1 b. **Group 2:** FIGURE 2 6. RC - If any wire bundles are found to be damaged, repair them. Refer to SWPM 20-10-13as an accepted procedure.
7. If any of the wire bundles were repaired, record all wire numbers repaired to refer to for system tests. 8. If the hydraulic tube is found to be damaged:

a. Remove pressure from hydraulic systems A, B and Standby. Refer to 737-600/700/800/900 AMM 29-09-00as an accepted procedure. b. RC - Replace or repair the damaged hydraulic tube. Refer to 737-600/700/800/900 AMM 20-10-51as an accepted procedure. 9. RC - Install clamps and an optional spacer between the wire bundles and hydraulic tube in accordance with the applicable figure below.

a. **Group 1:** FIGURE 3 b. **Group 2:** FIGURE 4 10. If you replaced or repaired the hydraulic tube, service the hydraulic reservoir. Refer to 737-600/700/800/900 AMM 12-12-00as an accepted procedure. 11. Restore the electrical power to the airplane. Refer to 737-600/700/800/900 AMM 24-22-00as an accepted procedure. 12. If you replaced or repaired the hydraulic tube. restore pressure to hydraulic systems A, B and Standby. Refer to 737-600/700/800/900 AMM 29-11-00for systems A and B, and 737-600/700/800/900 AMM 29-21-00for the standby hydraulic system as accepted procedures. 13. If you replaced or repaired the hydraulic tube, check for leaks at the hydraulic tube connections. Refer to737-600/700/800/900 AMM 20-10-51as an accepted procedure. 14. If any of the wire bundles were repaired, do the tests that follow.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 39of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT NOTE:**  The table that follows includes tests for all wires in W6128 and W8122. Operators only need to test the systems that were disturbed as a result of wire repairs.

a. If wire bundle W6128 was repaired, do the tests that follow.
**Test - Refer to AMM Chapter as an Accepted**  **Procedure Refer to WDM Chapter**  **System Name Applicable Wire Repaired** 

737-600/700/800/900 AMM 33-42-02 Retractable Landing Light Assembly Replacement. (a) 737-600/700/800/900 WDM 33-42-11 Retractable Landing Lights 0001 thru 0006

737-600/700/800/900 AMM 29-11-21Electric Motor Driven Pump (EMDP) Test. 737-600/700/800/900 WDM 29-11-12 Hydraulic Systems A and B Electric Motor Driven Pump (EMDP) 0501, 0503 thru 0506 and YAAF

737-600/700/800/900 AMM 29-32-00Case Drain Overheat Switch Test 737-600/700/800/900 WDM 29-34-11 System A Pump Overheat Warning System (ELEC 2) 0502 and 0507 thru 0509

737-600/700/800/900 AMM 28-21-00Pressure Fueling System Test. 737-600/700/800/900 WDM 28-21-11 Pressure Fueling System 6011

(a) It is only necessary to do the test of the existing retractable landing lights.

b. If wire bundle W8122 was repaired, do the tests that follow.
**Test - Refer to AMM Chapter as an Accept**  **ed Procedure Refer to WDM Chapter**  **System Name Applicable Wire Re-**  **paired**
737-600/700/800/900 AMM 27-09-61Low Pressure Warning Switch Test. 737-600/700/800/900 WDM 27-23-14 Flight Control Low Pressure Indication 0501 and 0502

737-600/700/800/900 AMM 29-22-00Power Transfer Unit (PTU) System Test. 737-600/700/800/900 WDM 29-25-11Hydraulic Power Transfer Unit (PTU) System 0503 and 0504

737-600/700/800/900 AMM 29-22-31Power Transfer Unit (PTU)Control Valve Installation Test. 737-600/700/800/900 WDM 29-23-11 Landing Gear Transfer Valve Control 0505 thru 0510

737-600/700/800/900 AMM 27-09-31Flight Controls Shutoff Valve Test. 737-600/700/800/900 WDM 27-23-11 Flight Control System B Shutoff Valve 0511 thru 0513

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 40of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT Test - Refer to AMM** **Chapter as an Accept ed Procedure**  **Refer to WDM Chapter System Name**  **Applicable Wire Re- paired** 
737-600/700/800/900 AMM 27-81-00Leading Edge Uncommanded Motion Protection Test. 737-600/700/800/900 WDM 27-81-51Leading Edge Uncommanded Motion Protection Shutoff Valve 0515, 0516 and YAAF

737-600/700/800/900 AMM 27-09-61Low Pressure Warning Switch Test. 737-600/700/800/900 WDM 31-31-15or737- 600/700/800/900 WDM 27-23-14 (a) Flight Control Low Pressure Indication 0530

737-600/700/800/900 AMM 27-61-12Spoiler Shutoff Valve Test. 737-600/700/800/900 WDM 27-61-11 Spoiler Shutoff Valve System B 0542 thru 0544

737-600/700/800/900 AMM 31-51-00Takeoff Warning System Test. 737-600/700/800/900 WDM 31-53-11 Aural Takeoff Warning System 3201B,3201R and 3201Y (a) Refer to the Wiring Diagram Manual for the applicability of Wire 0530.
15. Remove the downlock pins from all landing gears, Refer to 737-600/700/800/900 AMM 32-00-01 as an accepted procedure. 16. Remove chocks from around the tires of all landing gears. 17. Put the airplane back to a serviceable condition.

Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1:June 23, 2016 41of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT This Figure applies only to: Group 1.** 

**FIGURE 1: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - HYDRAULIC**  **TUBE AND WIRE BUNDLES - INSPECTION**

**(SHEET 1 OF 2)** Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1June 23, 2016 42of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for each airplane.
**More Data Qty**  **Identification Name**  **Task Step**  In the area shown,do a Detailed Inspection for damage. Refer to SWPM 20-10- 13as an accepted procedure. 1 W6128 AND W8122 WIRE BUNDLES Inspect 1

In the area shown,do a Detailed Inspection for damage. Refer to737- 600/700/800/900 AMM 20-10-51asan accepted procedure. 1 272A4451-56 HYDRAULIC TUBE Inspect 2

**FIGURE 1: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - HYDRAULIC**  **TUBE AND WIRE BUNDLES - INSPECTION**

**(SHEET 2 OF 2)** Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1June 23, 2016 43of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT This Figure applies only to: Group 2.** 

**FIGURE 2: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - HYDRAULIC**  **TUBE AND WIRE BUNDLES - INSPECTION**

**(SHEET 1 OF 2)** Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1June 23, 2016 44of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for each airplane.
**More Data Qty**  **Identification Name**  **Task Step**  In the area shown,do a Detailed Inspection for damage. Refer to SWPM 20-10- 13as an accepted procedure. 1 W6128 AND W8122 WIRE BUNDLES Inspect 1

In the area shown,do a Detailed Inspection for damage. Refer to737- 600/700/800/900 AMM 20-10-51asan accepted procedure. 1 272A4451-1044 HYDRAULIC TUBE Inspect 2

**FIGURE 2: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - HYDRAULIC**  **TUBE AND WIRE BUNDLES - INSPECTION**

**(SHEET 2 OF 2)** Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1June 23, 2016 45of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT This Figure applies only to: Group 1.** 

**FIGURE 3: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - CLAMPS -**  **INSTALLATION (SHEET 1 OF 3)**  Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1June 23, 2016 46of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for each airplane.
**More Data Qty**  **Identification Name**  **Task Step**  2
- CLAMPS Loosen 1 (a) 1 W6128 AND W8122 WIRE BUNDLES Adjust 2 On wire bundles W6128 and W8122 as shown. (b) 1 BACC10JU105 (BACC10GU105 orBACC10JU105P optional) WIRE BUNDLE CLAMP Install (New) 3

On hydraulic tube P/N 272A4451-56 as shown. 1 AS21919WCE10 CLAMP,LOOP Install (New) 4

(c) 1 NAS42DD6-16FC SPACERS FOR RIV- ETS Install (New) 5 (d) 1 BACS12GU3K8 SCREW Install (New) 6 1 NAS1149D0316J WASHER Install (New) Loosely to let wire bundles be adjusted. 1 BACN10JC3CD NUT Install (New)
35 in-lb. 1 BACN10JC3CD NUT Torque 7 2
- CLAMPS Tighten 8 (a) Adjust wire bundle slack outboard, towards the hydraulic tube, to install new clamps, if necessary. (b) If the listed wire bundle clamp does not fit correctly, use wire bundle clamp BACC10JU104 (BACC10GU104 or BACC10JU104P optional) or BACC10JU106 (BACC10GU106 or BACC10JU106Poptional). (c) Installation of a spacer is optional. As an alternative, make a selection of a spacer from the extra parts table below. Make sure that the distance between the wire bundles and hydraulic tube is 0.5 inch (1.3 cm) minimum. (d) As an alternative, make a selection of a screw from the extra parts table below. The parts shown in the table below are provided as extra parts for this figure.
**More Data Qty**  **Identification Name**  1

BACC10JU104 (BACC10GU104 or BACC10JU104P optional) WIRE BUNDLE CLAMP

1 BACC10JU106 (BACC10GU106 or BACC10JU106P optional) WIRE BUNDLE CLAMP

1 BACS12GU3K12 SCREW

**FIGURE 3: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - CLAMPS -**  **INSTALLATION (SHEET 2 OF 3)**  Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1June 23, 2016 47of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT More Data**  **Qty Identification**  **Name** 1

BACS12GU3K16 SCREW 1

BACS12GU3K20 SCREW 1

BACS12GU3K24 SCREW 1

BACS12GU3K28 SCREW 1

BACS12GU3K32 SCREW 1

BACS12GU3K36 SCREW 1

NAS42DD6-32FC SPACERS FOR RIVETS 1 NAS42DD6-48FC SPACERS FOR RIVETS 1 NAS42DD6-64FC SPACERS FOR RIVETS 1 NAS42DD6-80FC SPACERS FOR RIVETS 1 NAS42DD6-96FC SPACERS FOR RIVETS 1 NAS42DD6-112FC SPACERS FOR RIVETS 1 NAS42DD6-128FC SPACERS FOR RIVETS

**FIGURE 3: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - CLAMPS -**  **INSTALLATION (SHEET 3 OF 3)**  Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1June 23, 2016 48of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT This Figure applies only to: Group 2.** 

**FIGURE 4: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - CLAMPS -**  **INSTALLATION (SHEET 1 OF 3)**  Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1June 23, 2016 49of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY

numbers shown below are the number of parts necessary for each airplane.
**More Data Qty**  **Identification Name**  **Task Step**  2
- CLAMPS Loosen 1 (a) 1 W6128 AND W8122 WIRE BUNDLES Adjust 2 On wire bundles W6128 and W8122 as shown. (b) 1 BACC10JU105 (BACC10GU105 orBACC10JU105P optional) WIRE BUNDLE CLAMP Install (New) 3

On hydraulic tube P/N 272A4451-1044 as shown. 1 AS21919WCE10 CLAMP,LOOP Install (New) 4

(c) 1 NAS42DD6-16FC SPACERS FOR RIV- ETS Install (New) 5 (d) 1 BACS12GU3K8 SCREW Install (New) 6 1 NAS1149D0316J WASHER Install (New) Loosely to let wire bundles be adjusted. 1 BACN10JC3CD NUT Install (New)
35 in-lb. 1 BACN10JC3CD NUT Torque 7 2
- CLAMPS Tighten 8 (a) Adjust wire bundle slack outboard, towards the hydraulic tube, to install new clamps, if necessary. (b) If the listed wire bundle clamp does not fit correctly, use wire bundle clamp BACC10JU104 (BACC10GU104 or BACC10JU104P optional) or BACC10JU106 (BACC10GU106 or BACC10JU106Poptional). (c) Installation of a spacer is optional. As an alternative, make a selection of a spacer from the extra parts table below. Make sure that the distance between the wire bundles and hydraulic tube is 0.5 inch (1.3 cm) minimum. (d) As an alternative, make a selection of a screw from the extra parts table below. The parts shown in the table below are provided as extra parts for this figure.
**More Data Qty**  **Identification Name**  1

BACC10JU104 (BACC10GU104 or BACC10JU104P optional) WIRE BUNDLE CLAMP

1 BACC10JU106 (BACC10GU106 or BACC10JU106P optional) WIRE BUNDLE CLAMP

1 BACS12GU3K12 SCREW

**FIGURE 4: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - CLAMPS -**  **INSTALLATION (SHEET 2 OF 3)**  Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1June 23, 2016 50of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT More Data**  **Qty Identification**  **Name** 1

BACS12GU3K16 SCREW 1

BACS12GU3K20 SCREW 1

BACS12GU3K24 SCREW 1

BACS12GU3K28 SCREW 1

BACS12GU3K32 SCREW 1

BACS12GU3K36 SCREW 1

NAS42DD6-32FC SPACERS FOR RIVETS 1 NAS42DD6-48FC SPACERS FOR RIVETS 1 NAS42DD6-64FC SPACERS FOR RIVETS 1 NAS42DD6-80FC SPACERS FOR RIVETS 1 NAS42DD6-96FC SPACERS FOR RIVETS 1 NAS42DD6-112FC SPACERS FOR RIVETS 1 NAS42DD6-128FC SPACERS FOR RIVETS

**FIGURE 4: RIGHT MAIN WHEEL WELL - BELOW ELECTRIC MOTOR DRIVEN PUMP 'B' - CLAMPS -**  **INSTALLATION (SHEET 3 OF 3)**  Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1June 23, 2016 51of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT APPENDIX A:** **PART DEMAND INTENT (SHEET 1 OF 1)**  Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 04, 2015 737-29A1119 Revision 1June 23, 2016 52of52 **BOEING SERVICE BULLETIN 737-29A1119 ALERT**  **ALERT**