Commercial 

Airplanes 737

Service Bulletin

SPECIAL ATTENTION

Number: 737-30-1058

Original Issue: July 27, 2006

Revision 3: July 07, 2010

ATA System: 3041

SUBJECT: ICE AND RAIN PROTECTION - Control Cabin Window Anti-Icing System - Coil Cord

Assembly Replacement on the Number 2 Windows in the Flight Compartment

Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15

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persons from specific countries. The controller of this data has the individual responsibility to abide by all export

laws.

ECCN: 9E991

BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET

Copyright © 2006 The Boeing Company

Unpublished Work - All Rights Reserved

Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable

subject matter. Boeing also claims copyright in this document as a compilation and/or collective work.

This document includes proprietary information owned by The Boeing Company and/or one or more third parties.

Treatment of the document and the information it contains is governed by contract with Boeing. For more

information, contact The Boeing Company, P.O. Box 3707, Seattle, Washington 98124.

Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner,

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2.0
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BOEING SERVICE BULLETIN 737-30-1058

BLANK PAGE
Table of Contents

Revision Transmittal Sheet ............................................ 5

Summary ...................................................... 7

1. PLANNING INFORMATION ........................................ 9

A. Effectivity ................................................ 9

1. Airplanes ............................................. 9

2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

B. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

C. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

E. Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

F. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

G. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

H. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

I. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

J. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

1. Existing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2. Data supplied with this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3. Installation Drawings Used in the Preparation of this Service Bulletin . . . . . . . . . . . . 18

K. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

L. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2. MATERIAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

A. Material - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

B. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

C. Parts Necessary For Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

1. Kits/Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2. Parts and Materials Supplied by the Operator . . . . . . . . . . . . . . . . . . . . . . . . 22

3. Parts Modified and Reidentified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4. Parts Removed and Not Replaced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

D. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

E. Special Tooling - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

F. Special Tooling Necessary to do this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . 23

3. ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

A. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

B. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

FIGURE 1: CAPTAIN'S SIDE - COIL CORD AND PANEL REMOVAL . . . . . . . . . . . . . . . . . . 27

FIGURE 2: CAPTAIN'S SIDE - IDENTIFICATION TAPE INSTALLATION . . . . . . . . . . . . . . . . 28

FIGURE 3: CAPTAIN'S SIDE - CONNECTOR KEYWAY INSPECTION . . . . . . . . . . . . . . . . . 29

FIGURE 4: CAPTAIN'S SIDE - RECLOCKING OF THE CONNECTOR KEYWAY . . . . . . . . . . . 30

FIGURE 5: CAPTAIN'S SIDE - COIL CORD AND PANEL INSTALLATION . . . . . . . . . . . . . . . 31

FIGURE 6: FIRST OFFICER'S SIDE - COIL CORD AND PANEL REMOVAL . . . . . . . . . . . . . . 32

FIGURE 7: FIRST OFFICER'S SIDE - IDENTIFICATION TAPE INSTALLATION . . . . . . . . . . . . 33

FIGURE 8: FIRST OFFICER'S SIDE - CONNECTOR KEYWAY INSPECTION . . . . . . . . . . . . . 34

FIGURE 9: FIRST OFFICER'S SIDE - RECLOCKING OF THE CONNECTOR KEYWAY . . . . . . . 35

FIGURE 10: FIRST OFFICER'S SIDE - COIL CORD AND PANEL INSTALLATION . . . . . . . . . . . 36

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BOEING SERVICE BULLETIN 737-30-1058
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BOEING SERVICE BULLETIN 737-30-1058

BLANK PAGE
Commercial 

Airplanes 737

Service Bulletin

SPECIAL ATTENTION

Revision Transmittal Sheet Number: 737-30-1058

Original Issue: July 27, 2006

Revision 3: July 07, 2010

ATA System: 3041

SUBJECT: ICE AND RAIN PROTECTION - Control Cabin Window Anti-Icing System - Coil Cord

Assembly Replacement on the Number 2 Windows in the Flight Compartment

This revision includes all pages of the service bulletin.

COMPLIANCE INFORMATION RELATED TO THIS REVISION

Boeing recommends that the change given in this service bulletin be done within 48 months after the Revision

3 date of this service bulletin.

No more work is necessary on airplanes changed in accordance with the original issue, Revision 1, or Revision

2 of this service bulletin.

REASON FOR REVISION

This revision is sent to notify operators that the Federal Aviation Administration (FAA) will possibly release an

Airworthiness Directive (AD) related to this service bulletin. The AD will make the compliance tasks and times

given in this service bulletin mandatory.

These sections were changed:

1. On the Summary page, in the Compliance paragraph, a compliance time was added to accomplish this

service bulletin.

2. In Paragraph 1.E., Compliance, added a compliance time to accomplish this service bulletin.

Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity, to show the location

of important changes.

Pages with no vertical lines have no important changes.

REVISION HISTORY

Original Issue: July 27, 2006

Revision 1: June 18, 2007

Revision 2: February 13, 2009

Revision 3: July 07, 2010

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BOEING SERVICE BULLETIN 737-30-1058

BLANK PAGE
Commercial 

Airplanes 737

Service Bulletin

SPECIAL ATTENTION

Summary Number: 737-30-1058

Original Issue: July 27, 2006

Revision 3: July 07, 2010

ATA System: 3041

SUBJECT: ICE AND RAIN PROTECTION - Control Cabin Window Anti-Icing System - Coil Cord

Assembly Replacement on the Number 2 Windows in the Flight Compartment

BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.

CONCURRENT REQUIREMENTS

None.

BACKGROUND

Boeing received a report from an operator of arcing and smoke at the left number 2 window in the flight

compartment. An investigation showed the cause of this problem to be mechanical damage at the connector

backshell of the coil cord assembly. The new assembly will prevent mechanical damage which could cause a

fire in the flight compartment.

This service bulletin gives instructions to install a new coil cord assembly on the captain’s and first officer’s sides

of the number 2 windows in the flight compartment. This bulletin also gives instructions to inspect and reclock

the connector keyways if necessary.

Boeing Service Related Problem (SRP) 737-SRP-56-0017 is related to this service bulletin.

ACTION (PRR 38275-97)

Get access to the flight compartment. Do an inspection of the connector keyway’s orientation on both sides of

the coil cord located on the captain’s and first officer’s number 2 windows.

Reclock the connector keyway if necessary and replace the coil cord assembly.

Do the Window Heat Control Unit (WHCU) Test.

EFFECTIVITY

737-600, -700, -700C, -800, -900 Airplanes. See Service Bulletin Paragraph 1.A.1., Airplanes, for the list of

affected airplanes.

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COMPLIANCE

The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service

bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin

mandatory.

Boeing recommends that the change given in this service bulletin be done within 48 months after the Revision

3 date of this service bulletin.

INDUSTRY SUPPORT INFORMATION

Boeing warranty remedies are available for airplanes in warranty as of August 8, 2005. Please refer to Paragraph

2.B., Industry Support Information.

MANPOWER

Airplanes Total Task Hours Elapsed Hours

Group 1 5.50 3.25

MATERIAL INFORMATION

Boeing Supplied Kits/Parts.

Refer to Paragraph 2.A., Material - Price and Availability.

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BOEING SERVICE BULLETIN 737-30-1058
Commercial 

Airplanes 737

Service Bulletin

SPECIAL ATTENTION

Number: 737-30-1058

Original Issue: July 27, 2006

Revision 3: July 07, 2010

ATA System: 3041

SUBJECT: ICE AND RAIN PROTECTION - Control Cabin Window Anti-Icing System - Coil Cord

Assembly Replacement on the Number 2 Windows in the Flight Compartment

BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.

1. PLANNING INFORMATION

A. Effectivity

1. Airplanes

Refer to Service Bulletin Index Document D6-19567 Part 3 for Airplane Variable Number, Line

Number, and Serial Number data.

This service bulletin is for the airplanes shown below. An equivalent change is on subsequent

production airplanes. Refer to PRR38275-97 for data about this change.

GROUP CONFIGURATION DESCRIPTION

Airplanes with one 90 degree and one straight connector backshell

installed on window number 2.

1 -

Airplane Models:

737-600, 737-700, 737-700C, 737-800, 737-900

Variable Number Group

YA001 - YA099 1

YA101 - YA199 1

YA201 - YA211 1

YA221 1

YA231 - YA242 1

YA251 - YA256 1

YA271 - YA272 1

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Variable Number Group

YA291 1

YA301 - YA302 1

YA311 - YA314 1

YA321 - YA323 1

YA336 - YA345 1

YA351 1

YA356 - YA357 1

YA366 - YA367 1

YA371 - YA377 1

YA501 - YA536 1

YA541 - YA552 1

YA571 - YA578 1

YA601 - YA615 1

YA621 - YA622 1

YA626 - YA631 1

YA635 - YA636 1

YA641 - YA642 1

YA645 - YA650 1

YA656 - YA659 1

YA666 - YA667 1

YA671 - YA672 1

YA681 - YA691 1

YA701 - YA710 1

YA721 - YA722 1

YA731 - YA734 1

YA751 - YA756 1

YA801 - YA803 1

YA809 1

YA811 - YA814 1

YA831 - YA835 1

YA841 - YA862 1

YA881 - YA882 1

YA891 - YA892 1

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BOEING SERVICE BULLETIN 737-30-1058
Variable Number Group

YA961 - YA977 1

YB001 - YB006 1

YB101 - YB132 1

YB151 - YB153 1

YB156 - YB158 1

YB161 - YB164 1

YB171 - YB172 1

YB181 - YB184 1

YB201 - YB208 1

YB271 1

YB276 1

YB301 - YB310 1

YB371 - YB390 1

YB501 - YB502 1

YB521 - YB526 1

YB541 - YB544 1

YB551 1

YB561 - YB579 1

YB581 - YB596 1

YB601 - YB632 1

YB651 1

YB656 1

YB851 - YB863 1

YB871 - YB874 1

YB881 - YB890 1

YB901 - YB903 1

YB911 1

YB961 - YB964 1

YC001 - YC030 1

YC051 - YC083 1

YC091 - YC094 1

YC101 - YC104 1

YC111 - YC113 1

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BOEING SERVICE BULLETIN 737-30-1058
Variable Number Group

YC121 1

YC126 - YC127 1

YC136 - YC141 1

YC146 - YC147 1

YC151 - YC156 1

YC166 - YC171 1

YC176 - YC178 1

YC186 - YC189 1

YC201 - YC203 1

YC206 - YC207 1

YC301 - YC305 1

YC321 - YC387 1

YC391 - YC394 1

YC396 1

YC401 - YC417 1

YC421 - YC422 1

YC426 - YC428 1

YC436 - YC437 1

YC441 - YC448 1

YC451 - YC455 1

YC459 1

YC461 - YC467 1

YC471 - YC499 1

YC501 - YC526 1

YC571 - YC583 1

YC587 - YC589 1

YC591 - YC593 1

YC601 - YC655 1

YC681 - YC696 1

YC701 - YC715 1

YC720 - YC725 1

YC727 - YC742 1

YC751 - YC752 1

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BOEING SERVICE BULLETIN 737-30-1058
Variable Number Group

YC761 - YC770 1

YC781 - YC793 1

YC801 - YC892 1

YC901 - YC907 1

YC921 - YC922 1

YC931 - YC932 1

YC941 - YC951 1

YC971 - YC978 1

YC981 - YC983 1

YD001 - YD007 1

YD021 - YD025 1

YD041 - YD057 1

YD081 - YD084 1

YD101 - YD110 1

YD121 - YD126 1

YD151 - YD159 1

YD171 - YD172 1

YD201 - YD203 1

YD206 - YD209 1

YD216 - YD219 1

YD251 - YD254 1

YD256 - YD257 1

YD261 1

YD301 - YD334 1

YD391 1

YD401 - YD410 1

YD412 - YD414 1

YD481 - YD485 1

YD491 - YD494 1

YD501 - YD512 1

YD531 - YD535 1

YD541 - YD547 1

YD561 - YD564 1

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BOEING SERVICE BULLETIN 737-30-1058
Variable Number Group

YD571 - YD572 1

YD591 - YD595 1

YD601 - YD612 1

YD651 - YD655 1

YE001 - YE020 1

YE051 1

YE101 - YE109 1

YE151 - YE157 1

YE171 - YE172 1

YE201 - YE206 1

YE301 - YE305 1

YE321 - YE326 1

YE371 - YE378 1

YG001 - YG044 1

YG061 - YG064 1

YG066 - YG089 1

YG091 - YG096 1

YG101 1

YG201 - YG204 1

YG211 - YG213 1

YG501 - YG509 1

YG601 - YG602 1

YJ001 - YJ005 1

YJ011 - YJ013 1

YJ021 1

YJ471 - YJ480 1

YJ501 - YJ517 1

YJ531 - YJ552 1

YJ591 - YJ594 1

YJ631 - YJ632 1

YJ671 - YJ685 1

YJ690 - YJ692 1

YJ801 - YJ867 1

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BOEING SERVICE BULLETIN 737-30-1058
Variable Number Group

YJ871 1

YJ901 - YJ902 1

YJ911 - YJ928 1

YJ931 - YJ936 1

YJ941 - YJ947 1

YK001 - YK007 1

YK101 - YK104 1

YK111 - YK112 1

YK121 - YK122 1

YK131 - YK132 1

YK136 - YK137 1

YK141 - YK142 1

YK146 - YK147 1

YK151 - YK154 1

YK301 - YK305 1

YK321 - YK331 1

YK361 - YK369 1

YK401 - YK406 1

YK426 - YK427 1

YK431 - YK435 1

YK456 - YK460 1

YK476 1

YK480 - YK484 1

YK511 - YK514 1

YK551 - YK560 1

YK571 1

YK601 - YK602 1

YK611 - YK613 1

YK621 - YK622 1

YK631 1

YK641 - YK642 1

YK701 - YK707 1

YK721 1

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BOEING SERVICE BULLETIN 737-30-1058
Variable Number Group

YK801 - YK818 1

YK901 - YK906 1

YK941 1

YL001 - YL003 1

YL011 1

YM101 - YM103 1

YM201 - YM210 1

YM251 - YM292 1

YM471 1

YM481 - YM484 1

YM501 - YM507 1

YM521 - YM522 1

YM541 1

YM551 - YM553 1

YM571 - YM572 1

YM591 - YM592 1

YN001 - YN005 1

YN061 1

YN101 - YN105 1

2. Spares Affected

Examine your spares supply for the parts or components identified in Paragraph 2.C., Parts

Necessary for Each Airplane. If any parts or components are found, refer to Paragraph 2.C. for

the recommended use.

B. Concurrent Requirements

None.

C. Reason

Boeing received a report from an operator of arcing and smoke at the left number 2 window in the flight

compartment. An investigation showed the cause of this problem to be mechanical damage at the

connector backshell of the coil cord assembly. The new assembly will prevent mechanical damage

which could cause a fire in the flight compartment.

This service bulletin gives instructions to install a new coil cord assembly on the captain’s and first

officer’s sides of the number 2 windows in the flight compartment. This bulletin also gives instructions

to inspect and reclock the connector keyways if necessary.

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BOEING SERVICE BULLETIN 737-30-1058
Revision 2 is sent to change the illustrations in Figures 2 and 7 to show the correct station (STA)

locations for the coil cord connectors.

Boeing Service Related Problem (SRP) 737-SRP-56-0017 is related to this service bulletin.

Revision 3 is sent to notify operators that the change in this service bulletin must be done within 48

months after the Revision 3 date of this service bulletin.

D. Description

Revision 2: No more work is necessary on airplanes changed as shown in the original issue or Revision

1 of this service bulletin.

Revision 3: No more work is necessary on airplanes changed in accordance with the original issue,

Revision 1, or Revision 2 of this service bulletin.

Get access to the flight compartment. Do an inspection of the connector keyway’s orientation on both

sides of the coil cord located on the captain’s and first officer’s number 2 windows.

Reclock the connector keyway if necessary and replace the coil cord assembly.

Do the Window Heat Control Unit (WHCU) Test.

The work in this service bulletin is done in the maintenance zone(s) given below.

Affected Maintenance Zones

Model Zone

737-600, 737-700, 737-700C, 211, 212

737-800, 737-900

E. Compliance

The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to

this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this

service bulletin mandatory.

Boeing recommends that the change given in this service bulletin be done within 48 months after the

Revision 3 date of this service bulletin.

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.

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.

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BOEING SERVICE BULLETIN 737-30-1058
G. Manpower

The table below shows an estimate of the task hours necessary to do this change for each airplane.

This estimate is for direct labor only, done by an experienced crew. Adjust the estimate with operator

task hour data if necessary. The estimate does not include lost time. These are some examples of lost

time:

• Time to adjust to the workplace

• Time to schedule the work

• Time to inspect the work

• Time to cure the materials

• Time to make the parts

Number of Per- Task Hours Elapsed Hours

sons

Task

Open Access 1 0.25 0.25

Inspect 1 0.25 0.25

Change 2 4.50 2.25

Close Access 1 0.25 0.25

Test 1 0.25 0.25

TOTAL FOR EACH AIRPLANE 5.50 3.25

H. Weight and Balance Changes

None.

I. Electrical Load Data

Not changed.

J. References

1. Existing Data

a. Engineering Change Memo PRR38275-97

b. Service Related Problem (SRP) 737-SRP-56-0017

c. 737-600/700/800/900 Aircraft Maintenance Manual (AMM) Subject 24-22-00, 30-41-11

d. Boeing Standard Wiring Practices Manual (SWPM) 20-10-11, 20-10-12

2. Data supplied with this Service Bulletin

None.

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

None.

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BOEING SERVICE BULLETIN 737-30-1058
K. Publications Affected

1. Publications:

Publication Chapter-Section

737 Illustrated Parts Catalog 30-41

2. Damage Tolerance Based Structural Inspections:

Boeing has evaluated the repairs and/or changes in this service bulletin for effects on Fatigue

Critical Structure (FCS) and for changes to Damage Tolerance Inspections (DTI) required in the

Maintenance Program. This service bulletin does not affect FCS, therefore DTIs are not necessary.

L. Interchangeability and Intermixability of Parts

Refer to Paragraph 2.C., Parts Necessary for Each Airplane, for interchangeability and intermixability

information.

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BLANK PAGE
2. MATERIAL INFORMATION

A. Material - Price and Availability

Boeing can supply the kit shown in Paragraph 2.C., Parts Necessary for Each Airplane as shown below.

Kit availability is shown in the Reorder Lead Time (ROLT). ROLT is calculated from the date Boeing

gets the purchase order.

Unit Price thru DEC

31/09

ROLT

(Weeks)

Kit Number Name

Top Kit, No. 2 Window Heat Coil 15 $1,608.00

Cord Assembly

012A0061-1

B. Industry Support Information

Boeing warranty remedies are available for 737 airplanes in warranty as of August 8, 2005. For task

hour reimbursement for airplanes in warranty as of that date, send a warranty claim to Boeing

Commercial Airplanes Group - Warranties. The kits for airplanes in warranty as of that date will be

supplied at no charge. Send a purchase order for the kits to Boeing Spares. Please refer to this service

bulletin number and reference the airplane variable numbers in your purchase order.

C. Parts Necessary For Each Airplane

1. Kits/Parts

To get the kits/parts shown below, refer to Paragraph 2.A., Material - Price and Availability.

NOTE: One top kit and the items shown in Paragraph 2.C.2., Parts and Materials Supplied by

the Operator, are necessary for each airplane.

Kit 012A0061 - Top Kit, No. 2 Window Heat Coil Cord Assembly

Existing Part Notes

Number

New Part Number QTY Name

-1

Top Kit, No. 2 Window Heat Coil Cord

Assembly

012A0061-1 -

Wire Kit, No. 2 Window Heat Coil Cord

Assembly

280A3135-1 1

S280T007-1 (a) (b)

(286A2006-001)

S280A100-1 (ABC 2 Coil Cord

57021)

(a) Discard the existing part.

(b) ABC 57021 is the vendor part number for S280A100-1.

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BOEING SERVICE BULLETIN 737-30-1058
Kit 280A3135 - Wire Kit, No. 2 Window Heat Coil Cord Assembly

New Part Number QTY Name Notes

-102 -101 -1

Wire Kit, No. 2 Window Heat Coil Cord

Assembly

280A3135-1 . . -

Right No. 2 Window

Heat Coil Cord Assembly

280A3135-101 - 1

Left No. 2 Window

Heat Coil Cord Assembly

280A3135-102 - . 1

Connector Identifica- (a)

tion Tape. Identified

as D10572.

280A3135-10101 . 1 .

Connector Identifica- (a)

tion Tape. Identified

as D10564.

280A3135-10102 . 1 .

Connector Identifica- (a)

tion Tape. Identified

as D10572.

280A3135-10201 1 . .

Connector Identifica- (a)

tion Tape. Identified

as D10568.

280A3135-10202 1 . .

(a) Make from BACT19C-T or BACT19CT.

2. Parts and Materials Supplied by the Operator

None.

3. Parts Modified and Reidentified

None.

4. Parts Removed and Not Replaced

None.

D. Parts Necessary to Change Spares

None.

E. Special Tooling - Price and Availability

None.

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BOEING SERVICE BULLETIN 737-30-1058
F. Special Tooling Necessary to do this Service Bulletin

No special tools or equipment are necessary to do the change in this service bulletin. But, maintenance

and overhaul tools in the manuals given in Paragraph 1.J., References, can be necessary. Examine

operator tool supply to make sure all necessary tools are available.

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BLANK PAGE
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. Refer to the SWPM 20-10-11 and SWPM 20-10-12 for the wire installation procedures,

and SWPM 20-10-19 for the wire separation requirements, as accepted procedures.

4. A General Visual Inspection is defined as: A visual examination of an interior or

exterior area, installation or assembly to detect obvious damage, failure or irregularity.

This level of inspection is made from within touching distance unless otherwise

specified. A mirror may be necessary to enhance visual access to all exposed surfaces

in the inspection area. This level of inspection is made under normally available

lighting conditions such as daylight, hangar lighting, flashlight or drop-light and may

require removal or opening of access panels or doors. Stands, ladders or platforms

may be required to gain proximity to the area being checked.

5. These work instructions refer to procedures included in other Boeing documents.

When the words "refer to" are used and the operator has an accepted alternative

procedure, the accepted alternative procedure can be used. When the words "in

accordance with" are included in the instruction, the procedure in the Boeing document

must be used.

B. WORK INSTRUCTIONS

1. Remove electrical power from the airplane. Refer to 737-600/700/800/900 AMM 24-22-00 as an

accepted procedure.

2. Get access to the flight compartment.

3. Remove the coil cord and panels on the captain's side of the flight compartment in accordance

with Figure 1.

4. Install the identification tapes on the W2004 and W2208 wire bundles on the captain's side of the

flight compartment in accordance with Figure 2.

5. Inspect the orientation of the connector keyways on the captain's side of the flight compartment

in accordance with Figure 3.

a. If the orientation is not set at 12 o'clock, reclock the connector keyway in accordance with

Figure 4.

b. If the orientation is set at 12 o'clock, no change to the keyway is necessary.

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BOEING SERVICE BULLETIN 737-30-1058
6. Install the new coil cord and panels on the captain's side of the flight compartment in accordance

with Figure 5.

7. Remove the coil cord and panels on the first officer's side of the flight compartment in accordance

with Figure 6.

8. Install the identification tapes on the W2004 and W2108 wire bundles on the first officer's side of

the flight compartment in accordance with Figure 7.

9. Inspect the orientation of the connector keyways on the first officer's side of the flight compartment

in accordance with Figure 8.

a. If the orientation is not set at 12 o'clock, reclock the connector keyway in accordance with

Figure 9.

b. If the orientation is set at 12 o'clock, no change to the keyway is necessary.

10. Install the new coil cord and panels on the first officer's side of the flight compartment in accordance

with Figure 10.

11. Restore electrical power removed in Step 1. Refer to 737-600/700/800/900 AMM 24-22-00 as an

accepted procedure.

12. Do the Window Heat Control Unit (WHCU) test in accordance with 737-600/700/800/900 AMM

30-41-11 as an accepted procedure.

13. Put the airplane back to a serviceable condition.

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BOEING SERVICE BULLETIN 737-30-1058
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 airplane.

STEP TASK NAME IDENTIFICATION QTY MORE DATA

S280T007-1 -

(286A2006-001)

1 Remove Coil Cord

Left Panel - No. 3 Win- 232A1521-( ) -

dow

2 Remove / Keep

3 Remove / Keep Lower Cover Assembly 232A1520-( ) -

FIGURE 1: CAPTAIN'S SIDE - COIL CORD AND PANEL REMOVAL

(SHEET 1 OF 1)

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NAME IDENTIFICATION QTY MORE DATA

FLAG

NOTE

Connector Identification 280A3135-10201 1 Imprinted "D10572 M/W M2675".

Tape

1

Connector Identification 280A3135-10202 1 Imprinted "D10568 M/W M2675".

Tape

2

FIGURE 2: CAPTAIN'S SIDE - IDENTIFICATION TAPE INSTALLATION

(SHEET 1 OF 1)

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STEP TASK NAME IDENTIFICATION QTY MORE DATA

1 Inspect Connector Keyway D10572 1

2 Inspect Connector Keyway D10568 1

FIGURE 3: CAPTAIN'S SIDE - CONNECTOR KEYWAY INSPECTION

(SHEET 1 OF 1)

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STEP TASK NAME IDENTIFICATION QTY MORE DATA

Refer to SWPM 20-

10-11 as an accepted procedure. (a)

1 Adjust Connector Keyway D10572, D10568 2

(a) The keyway should be oriented at the 12 o'clock position.

FIGURE 4: CAPTAIN'S SIDE - RECLOCKING OF THE CONNECTOR KEYWAY

(SHEET 1 OF 1)

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BOEING SERVICE BULLETIN 737-30-1058
STEP TASK NAME IDENTIFICATION QTY MORE DATA

1 Install (Kept) Lower Cover Assembly 232A1520-( ) 1

Left Panel - No. 3 Win- 232A1521-( ) 1

dow

2 Install (Kept)

280A100-1 (ABC 1

57021)

3 Install (New) Coil Cord

FIGURE 5: CAPTAIN'S SIDE - COIL CORD AND PANEL INSTALLATION

(SHEET 1 OF 1)

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BOEING SERVICE BULLETIN 737-30-1058
STEP TASK NAME IDENTIFICATION QTY MORE DATA

S280T007-1 1

(286A2006-001)

1 Remove Coil Cord

Left Panel - No. 3 Win- 232A1521-( ) 1

dow

2 Remove / Keep

3 Remove / Keep Lower Cover Assembly 232A1520-( ) 1

FIGURE 6: FIRST OFFICER'S SIDE - COIL CORD AND PANEL REMOVAL

(SHEET 1 OF 1)

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NAME IDENTIFICATION QTY MORE DATA

FLAG

NOTE

Connector Identification 280A3135-10101 1 Imprinted "D10572 M\/W M2675".

Tape

1

Connector Identification 280A3135-10102 1 Imprinted "D10564 M/W M2675".

Tape

2

FIGURE 7: FIRST OFFICER'S SIDE - IDENTIFICATION TAPE INSTALLATION

(SHEET 1 OF 1)

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STEP TASK NAME IDENTIFICATION QTY MORE DATA

1 Inspect Connector Keyway D10572 1

2 Inspect Connector Keyway D10564 1

FIGURE 8: FIRST OFFICER'S SIDE - CONNECTOR KEYWAY INSPECTION

(SHEET 1 OF 1)

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BOEING SERVICE BULLETIN 737-30-1058
STEP TASK NAME IDENTIFICATION QTY MORE DATA

Refer to SWPM 20-

10-11 as an accepted procedure. (a)

1 Adjust Connector Keyway D10572, D10564 2

(a) The keyway should be oriented at the 12 o'clock position.

FIGURE 9: FIRST OFFICER'S SIDE - RECLOCKING OF THE CONNECTOR KEYWAY

(SHEET 1 OF 1)

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BOEING SERVICE BULLETIN 737-30-1058
STEP TASK NAME IDENTIFICATION QTY MORE DATA

1 Install (Kept) Lower Cover Assembly 232A1520-( ) 1

Left Panel - No. 3 Win- 232A1521-( ) 1

dow

2 Install (Kept)

S280A100-1 (ABC 1

57021)

3 Install (New) Coil Cord

FIGURE 10: FIRST OFFICER'S SIDE - COIL CORD AND PANEL INSTALLATION

(SHEET 1 OF 1)

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