## Alert Service Bulletin B787-81205-SB210055-00 AIR CONDITIONING - Air **Conditioning Cooling - Pack Flow Control System - Cabin Air Compressor, Change** 

Issue 001, 12 Mar 2015 B787-81205-SB210055-00 **Publication:**

**BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET** Copyright © 2015 Boeing. Unpublished Work. All rights reserved. Treatment of this data module and its content is governed by contract with Boeing. Rights to use this data module 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.

**EXPORT CONTROLLED** 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 controllerof this data has the individual responsibility to abide by all export laws. ECCN: 9E991

The applicability information below is referenced at the lower left of each page to indicate the page applicability. These references are valid for this print copy only. **PM Applicability (Publication Module applicability)** 787-8 Airplanes. Refer to Data Module SB B787-A-21-00-0055-00A-932A-D, Paragraph 1., Effectivity for the list of affected airplanes.

**B787-81205-SB210055-00 TITLE PAGE**  **Issue 001, 12 Mar 2015 Page 1 of 36**  EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. 2.0 **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**

## Alert Service Bulletin B787-81205-SB210055-00 **Table of Contents** Page Summary .....................................................5 PLANNING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1. Effectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 A. Airplanes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 B. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5. Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 8. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 9. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 10. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 A. Existing Data: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 B. Data Supplied with this Service Bulletin: . . . . . . . . . . . . . . . . . . . . . . . . . . 19 C. Installation Requirement Modules Used in the Preparation of this Service Bulletin: . . . 19 11. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 12. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . 19 13. Software Accomplishment Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 MATERIAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 1. Material - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3. Parts Necessary for Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 A. Kits/Parts: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 B. Parts and Materials Supplied by the Operator: . . . . . . . . . . . . . . . . . . . . . . . 21 C. Parts Modified and Reidentified: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 D. Parts Removed and Not Replaced: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 5. Special Tooling - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6. Special Tooling Necessary to do this Service Bulletin . . . . . . . . . . . . . . . . . . . . . 22 ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 1. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

**B787-81205-SB210055-00 TABLE OF CONTENTS**  **Issue 001, 12 Mar 2015 Page 2 of 36**  EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**

## Alert Service Bulletin B787-81205-SB210055-00 **List of Illustrations**

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN DATA MODULE SB B787-A-21-00-0055-00A-932A-D, PARAGRAPH 1., **Alert:** EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.


## Description
**Group 1-2:** Table 1 List of Illustrations - Alert Service Bulletin B787-81205-SB210055-00 **Used In ICN**  B787-A-21-00-0055-00A-931C-D Issue 002 ICN-B787-A-000061-A-81205-08629-A-01-1 B787-A-21-00-0055-00A-931C-D Issue 002 ICN-B787-A-000061-A-81205-08630-A-01-1

**B787-A-21-00-0055-00A-00AA-D Applicable To:**  **Issue 002, 12 Mar 2015 End of data module**  Model 787 See Applicability of this data module **Page 3 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**

## Alert Service Bulletin B787-81205-SB210055-00 **List of Effective Data Modules**

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN DATA MODULE SB B787-A-21-00-0055-00A-932A-D, PARAGRAPH 1., **Alert:** EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.


## Description
**Group 1-2:** Table 1 List of Effective Data Modules - Alert Service Bulletin B787-81205-SB210055-00 **Issue Date Issue Status**  **Issue Data Module – Information Name**  2015-03-12 Changed 002 B787-A-21-00-0055-00A-00AA-D – List of Illustrations 2015-03-12 Changed 002 B787-A-21-00-0055-00A-00SA-D – List of Effective Data Modules 2015-03-12 Changed 002 B787-A-21-00-0055-00A-931C-D – Summary 2015-03-12 Changed 002 B787-A-21-00-0055-00A-932A-D – PLANNING INFORMATION 2015-03-12 Changed 002 B787-A-21-00-0055-00A-934A-D – MATERIAL INFORMATION 2015-03-12 Changed 002 B787-A-21-00-0055-00A-933A-D – ACCOMPLISHMENT INSTRUCTIONS

**B787-A-21-00-0055-00A-00SA-D Applicable To:**  **Issue 002, 12 Mar 2015 End of data module**  Model 787 See Applicability of this data module **Page 4 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**

## Alert Service Bulletin B787-81205-SB210055-00 **Summary**

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN DATA MODULE SB B787-A-21-00-0055-00A-932A-D, PARAGRAPH 1., **Alert:** EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.



## References
**Title Reference**  Concurrent Requirements SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 2. Spares Affected SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 1.B. Compliance SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 5. Weight and Balance Changes SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 8. Electrical Load Data SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 9. Publications Affected SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 11. Kits/Parts SB B787-A-21-00-0055-00A-934A-D Issue 002, Paragraph 3.A. Parts and Materials Supplied by the Operator SB B787-A-21-00-0055-00A-934A-D Issue 002, Paragraph 3.B. Special Tooling Necessary to do this Service Bulletin SB B787-A-21-00-0055-00A-934A-D Issue 002, Paragraph 6. Effectivity SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 1. Manpower SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 7. Material - Price and Availability SB B787-A-21-00-0055-00A-934A-D Issue 002, Paragraph 1.

**B787-A-21-00-0055-00A-931C-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 5 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**

## Description **Group 1-2: 1. CONCURRENT REQUIREMENTS**  Refer to Data Module SB B787-A-21-00-0055-00A-932A-D, Paragraph 2., Concurrent Requirements. **2. BACKGROUND** This service bulletin gives instructions to replace the inboard and outboard Cabin Air Compressor (CAC) modules on the left side and right side Cabin Air Conditioning and Temperature Control System (CACTCS) packs. The current CAC module has experienced six in-service events in which electrical shorts of the motor stator wiring burned a hole through the CAC motor stator housing. The pack bay is classified as a flammable fluid leakage zone and the burn-through would be classified as an ignition source. The new CAC motor housing thickness is increased to contain the arc. In addition, the CACTCS pack has reinforcements made to support the increased weight of the new CAC. Also, a change is made to the right side CACTCS packCAC motor cooling ducts to help mitigate water ingress into the motor. If the service bulletin is not incorporated, the CAC may experience an electrical motor short and burn a hole in the CAC motor housing, which could result in a fire in the pack bay. Boeing Service Related Problem (SRP) 787 SRP-21-0208 is related to this service bulletin. Fleet Team Digest (FTD) 787-FTD-21-13011 is related to this service bulletin.This table is provided to operators for planning purposes only. Refer to the applicable sections for more information. Table 1 **Data Module Reference Affected**  **Planning Data** Data Module SB B787-A-21-00-0055-00A-932AD, Paragraph 1.B., Spares Affected Yes Spares Affected

Data Module SB B787-A-21-00-0055-00A-932AD, Paragraph 5., Compliance Yes AD Related

Data Module SB B787-A-21-00-0055-00A-932AD, Paragraph 8., Weight and Balance Changes Yes Weight and Balance Changed

Data Module SB B787-A-21-00-0055-00A-932AD, Paragraph 9., Electrical Load Data No Electrical Load Changed

Data Module SB B787-A-21-00-0055-00A-932AD, Paragraph 11., Publications Affected Yes Publications Affected

Data Module SB B787-A-21-00-0055-00A-932AD, Paragraph 11., Publications Affected No Airplane Flight Operations Affected (Flight CrewOperations Manual and/or FAA Approved Airplane Flight Manual) Data Module SB B787-A-21-00-0055-00A-934AD, Paragraph 3.A., Kits/Parts No Kits/Parts Required

**B787-A-21-00-0055-00A-931C-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 6 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**Table 1 **Data Module Reference Affected**  **Planning Data** Data Module SB B787-A-21-00-0055-00A-934AD, Paragraph 3.B., Parts and Materials Supplied by the Operator Yes Operator Supplied Parts/Material

Data Module SB B787-A-21-00-0055-00A-934AD, Paragraph 6., Special Tooling Necessary to do this Service Bulletin No Special Tooling Required

As part of a service bulletin validation program, this change was completed on airplanes ZA294-ZA295, ZA536 and ZA539-ZA541 by Service Bulletin B787-81205-VB210055-00 Issue 001, dated October 17, 2014, before Issue 001 of this service bulletin. The changed completed on airplanes ZA294-ZA295, ZA536 andZA539-ZA541 by Service Bulletin B787-81205-VB210055-00 Issue 001, dated October 17, 2014, is equivalent to Issue 001 of this service bulletin. Airplanes ZA294-ZA295, ZA536 and ZA539-ZA541 have the configuration of a Group 1 airplane. **3. ACTION** (CN-AA48354D) **Group 1:** Work Package 1: Get access to and remove the inboard and outboard CAC Modules on the left side Non Forward Cargo Air Conditioning (NONFCAC) CACTCS pack. Remove the existing CAC from the inboard and outboard CAC modules and prepare to install the new CAC to the inboard and outboard CAC modules. Modify the inboard and outboard CAC Modules and the CACTCS Pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010188-21-6. Install the changed inboard and outboard CAC Modules. Do installation test and reidentify the CACTCS Pack. **Group 1:** Work Package 2: Get access to and remove the inboard and outboard CAC Modules on the right side NONFCAC CACTCS pack. Remove the existing CAC from the inboard and outboard CAC modules and prepare to install the new CAC to the inboard and outboard CAC modules. Modify the inboard and outboard CAC Modules and the CACTCS Pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010189-21-6. Install the changed inboard and outboard CAC Modules. Do installation test and reidentify the CACTCS Pack. **Group 2:** Work Package 3: Get access to and remove the inboard and outboard CAC Modules on the left side Forward Cargo Air Conditioning (FCAC) CACTCS pack. Remove the existing CAC from the inboard and outboard CAC modules and prepare to install the new CAC to the inboard and outboard CAC modules. Modify the inboard and outboard CAC Modules and the CACTCS Pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010097-21-6. Install the changed inboard and outboard CAC Modules. Do installation test and reidentify the CACTCS Pack. **Group 2:** Work Package 4: Get access to and remove the inboard and outboard CAC Modules on the right side FCAC CACTCS pack. Remove the existing CAC from the inboard and outboard CAC modules and prepare to install the new CAC to the inboard and outboard CAC modules. Modify the inboard and outboard CAC Modules and the CACTCS Pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin

**B787-A-21-00-0055-00A-931C-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 7 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**7010098-21-6. Install the changed inboard and outboard CAC Modules. Do installation test and reidentify the CACTCS Pack. **Group 1-2: 4. EFFECTIVITY**  787-8 Airplanes. Refer to Data Module SB B787-A-21-00-0055-00A-932A-D, Paragraph 1., Effectivity for the list of affected airplanes. **5. 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 five years after the Issue 001 date of this service bulletin. **6. INDUSTRY SUPPORT INFORMATION** Boeing warranty remedies are not available for the configuration changes given in this service bulletin. **7. MANPOWER** Refer to Data Module SB B787-A-21-00-0055-00A-932A-D, Paragraph 7., Manpower. **8. MATERIAL INFORMATION** Operator Supplied Parts/Materials. Refer to Data Module SB B787-A-21-00-0055-00A-934A-D, Paragraph 1., Material - Price and Availability.

**B787-A-21-00-0055-00A-931C-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 8 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**ICN-B787-A-000061-A-81205-08629-A-01-1 Figure 1

**B787-A-21-00-0055-00A-931C-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 9 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**ICN-B787-A-000061-A-81205-08630-A-01-1 Figure 2

**B787-A-21-00-0055-00A-931C-D Applicable To:**  **Issue 002, 12 Mar 2015 End of data module**  Model 787 See Applicability of this data module **Page 10 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**

## Alert Service Bulletin B787-81205-SB210055-00 **PLANNING INFORMATION**

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH 1., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED **Alert:** OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.



## References
**Title Reference**  BOLT AND NUT INSTALLATION SOPM 20-50-01 Standard Wiring Practices Manual SWPM 20-10-11 Standard Wiring Practices Manual SWPM 20-10-12 Standard Wiring Practices Manual SWPM 20-10-19 CABIN AIR COMPRESSOR 787 AMM 21-51-19 

## Description **Group 1-2:**

**1. Effectivity A. Airplanes**  This service bulletin is applicable to 787-8 Airplanes, line numbers 6-9, 11, 20-21, 23-125, 127-132, 134-138, 140-145, 147-168, 170-180, 182-201, 203-212, 214-217, 219-222, 224-228, 230-233, 235, 237-239, 241-245, 247-252, 254-255, 257-258 and 260-261 in two Groups. The Variable Numbersand Group information for the applicable airplanes is given below. An equivalent change is on subsequent production airplanes. Refer to CN-AA48354 for data about this change. Table 1 **DESCRIPTION CONFIGURATION**  **GROUP** 787-8 airplanes without Forward Cargo Air Conditioning (NONFCAC)

- 1 787-8 airplanes with Forward Cargo Air Conditioning (FCAC)

- 2
Airplane Models: 787-8 Table 2 **Group Variable Number**  2 ZA006 2 ZA100-ZA105

**B787-A-21-00-0055-00A-932A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 11 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**Table 2 **Group Variable Number**  2 ZA116-ZA124 2 ZA135-ZA140 2 ZA152 1 ZA175-ZA189 1 ZA195-ZA198 2 ZA215-ZA222 1 ZA230-ZA248 2 ZA260-ZA275 1 ZA285-ZA296 2 ZA317-ZA323 2 ZA327 2 ZA334-ZA335 1 ZA380-ZA389 1 ZA430-ZA437 1 ZA445-ZA448 2 ZA450-ZA457 2 ZA460-ZA478 2 ZA506-ZA516 1 ZA536-ZA544 2 ZA560 1 ZA561-ZA565 2 ZA566-ZA567 2 ZA576-ZA580 2 ZA586 1 ZA588-ZA591 1 ZA610-ZA616 2 ZA650-ZA651 2 ZA655-ZA660 2 ZA665-ZA668 1 ZA680-ZA681

**B787-A-21-00-0055-00A-932A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 12 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**Table 2 **Group Variable Number**  2 ZA695 2 ZA715-ZA716 1 ZA740-ZA741 2 ZA778-ZA779 1 ZA783 1 ZA817-ZA819 2 ZA841 1 ZA846 **B. Spares Affected Group 1:**  Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletins 7010188-21-6 and 7010189- 21-6. **Group 2:** Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletins 7010097-21-6 and 7010098- 21-6. **Group 1-2:**

**2. Concurrent Requirements** The service bulletin(s) listed below must be done before or at the same time as this service bulletin. **Group 1:** Table 3 **Description Service Bulletin**  **Company** AIR CONDITIONING - 787 CACTCS PACK (LEFT HAND, NONFCAC) - UPGRADE TO 7010188H08 (For Work Package 1) 7010188-21-6, Revision 1. Dated: January 30, 2015. UTC Aerospace Systems, (Hamilton Sundstrand) AIR CONDITIONING - 787 CACTCS PACK (RIGHT HAND, NONFCAC) - UPGRADE TO 7010189H08 (For Work Package 2) 7010189-21-6, Revision 1. Dated: January 30, 2015. UTC Aerospace Systems, (Hamilton Sundstrand)

**B787-A-21-00-0055-00A-932A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 13 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN Group 2:**  Table 4 **Description Service Bulletin**  **Company** AIR CONDITIONING - 787 CACTCS PACK (LEFT HAND, FCAC) - UPGRADE TO 7010097H08 (For Work Package 3) 7010097-21-6, Revision 1. Dated: January 30, 2015. UTC Aerospace Systems, (Hamilton Sundstrand) AIR CONDITIONING - 787 CACTCS PACK (RIGHT HAND, FCAC) - UPGRADE TO 7010098H08 (For Work Package 4) 7010098-21-6, Revision 1. Dated: January 30, 2015. UTC Aerospace Systems, (Hamilton Sundstrand)
**Group 1-2:**

**3. Reason** This service bulletin gives instructions to replace the inboard and outboard Cabin Air Compressor (CAC) modules on the left side and right side Cabin Air Conditioning and Temperature Control System (CACTCS) packs. The current CAC module has experienced six in-service events in which electrical shorts of the motor stator wiring burned a hole through the CAC motor stator housing. The pack bay is classified as a flammable fluid leakage zone and the burn-through would be classified as an ignition source. The newCAC motor housing thickness is increased to contain the arc. In addition, the CACTCS pack has reinforcements made to support the increased weight of the new CAC. Also, a change is made to the right side CACTCS pack CAC motor cooling ducts to help mitigate water ingress into the motor. If the service bulletin is not incorporated, the CAC may experience an electrical motor short and burn a hole in the CAC motor housing, which could result in a fire in the pack bay. Boeing Service Related Problem (SRP) 787 SRP-21-0208 is related to this service bulletin. Fleet Team Digest (FTD) 787-FTD-21-13011 is related to this service bulletin. As part of a service bulletin validation program, this change was completed on airplanes ZA294-ZA295, ZA536 and ZA539-ZA541 by Service Bulletin B787-81205-VB210055-00 Issue 001, dated October 17, 2014, before Issue 001 of this service bulletin. The changed completed on airplanes ZA294-ZA295, ZA536 and ZA539-ZA541 by Service Bulletin B787-81205-VB210055-00 Issue 001, dated October 17, 2014, is equivalent to Issue 001 of this service bulletin. Airplanes ZA294-ZA295, ZA536 and ZA539-ZA541 have the configuration of a Group 1 airplane. **4. Description Group 1:**  Work Package 1: Get access to and remove the inboard and outboard CAC Modules on the left side Non Forward Cargo Air Conditioning (NONFCAC) CACTCS pack. Remove the existing CAC from the inboard and outboard CAC modules and prepare to install the new CAC to the inboard and outboard CAC modules. Modify the inboard and outboard CAC Modules and the CACTCS Pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010188-21-6. Install the changed inboard and outboard CAC Modules. Do installation test and reidentify the CACTCS Pack **Group 1:** Work Package 2: Get access to and remove the inboard and outboard CAC Modules on the right side NONFCAC CACTCS pack. Remove the existing CAC from the inboard and outboard CAC modules and prepare to install the new CAC to the inboard and outboard CAC modules. Modify the inboard and outboard CAC Modules and the CACTCS Pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service

**B787-A-21-00-0055-00A-932A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 14 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**bulletin 7010189-21-6. Install the changed inboard and outboard CAC Modules. Do installation test and reidentify the CACTCS Pack. **Group 2:** Work Package 3: Get access to and remove the inboard and outboard CAC Modules on the left side Forward Cargo Air Conditioning (FCAC) CACTCS pack. Remove the existing CAC from the inboard and outboard CAC modules and prepare to install the new CAC to the inboard and outboard CAC modules. Modify the inboard and outboard CAC Modules and the CACTCS Pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010097-21-6. Install the changed inboard and outboard CAC Modules. Do installation test and reidentify the CACTCS Pack. **Group 2:** Work Package 4: Get access to and remove the inboard and outboard CAC Modules on the right side FCAC CACTCS pack. Remove the existing CAC from the inboard and outboard CAC modules and prepare to install the new CAC to the inboard and outboard CAC modules. Modify the inboard and outboard CAC Modules and the CACTCS Pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010098-21-6. Install the changed inboard and outboard CAC Modules. Do installation test and reidentify the CACTCS Pack. **Group 1-2:** The work in this service bulletin is done in the maintenance zone(s) given below. Table 5 **Affected Maintenance Zones Zone**  **Model** 135, 136 787-8 **5. 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 five years after the Issue 001 date of this service bulletin. **6. 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 EuropeanAviation 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.

**B787-A-21-00-0055-00A-932A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 15 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN 7. 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 – Time to find the tools

**Group 1:** NOTE : The time to make the change also includes the work required in UTC Aerospace Systems, Hamilton Sundstrand Service Bulletins 7010188-21-6 and 7010189-21-6. **Group 1:** Table 6 Work Package 1 - Left Non Forward Cargo Air Conditioning (NONFCAC) CACTCS Pack, Inboard and Outboard CAC Change **Elapsed Hours Task Hours**  **Number of Per- sons**  **Task**

1.00 1.00 1 Open Access 4.00 8.00 2 Remove the In-board and Outboard CAC Module 3.00 6.00 2 Modify the Inboard and Outboard CAC and the Pack 4.00 8.00 2 Install the Inboard and Outboard CAC Module 1.25 1.25 1 Installation Test 1.00 1.00 1 Close Access 14.25 25.25 TOTAL FOR WORK PACKAGE 1

**B787-A-21-00-0055-00A-932A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 16 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN Group 1:**  Table 7 Work Package 2 - Right Non Forward Cargo Air Conditioning (NONFCAC) CACTCS Pack, Inboard and Outboard CAC Change **Elapsed Hours Task Hours**  **Number of Per- sons**  **Task**

1.00 1.00 1 Open Access 4.00 8.00 2 Remove the In-board and Outboard CAC Module 4.00 8.00 2 Modify the Inboard and Outboard CAC and the Pack 4.50 9.00 2 Install the Inboard and Outboard CAC Module 1.25 1.25 1 Installation Test 1.00 1.00 1 Close Access 15.75 28.25 TOTAL FOR WORK PACKAGE 2
**Group 2:** NOTE: The time to make the change also includes the work required in UTC Aerospace Systems, Hamilton Sundstrand Service Bulletins 7010097-21-6 and 7010098-21-6. **Group 2:** Table 8 Work Package 3 - Left Forward Cargo Air Conditioning (FCAC) CACTCS Pack, Inboard and Outboard CAC Change **Elapsed Hours Task Hours**  **Number of Per- sons**  **Task**

1.00 1.00 1 Open Access 4.00 8.00 2 Remove the In-board and Outboard CAC Module 3.00 6.00 2 Modify the Inboard and Outboard CAC and the Pack 4.00 8.00 2 Install the Inboard and Outboard CAC Module 1.25 1.25 1 Installation Test 1.00 1.00 1 Close Access 14.25 25.25 TOTAL FOR WORK PACKAGE 3

**B787-A-21-00-0055-00A-932A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 17 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN Group 2:**  Table 9 Work Package 4 - Right Forward Cargo Air Conditioning (FCAC) CACTCS Pack, Inboard and Outboard CAC Change **Elapsed Hours Task Hours**  **Number of Per- sons**  **Task**

1.00 1.00 1 Open Access 4.00 8.00 2 Remove the In-board and Outboard CAC Module 4.00 8.00 2 Modify the Inboard and Outboard CAC and the Pack 4.50 9.00 2 Install the Inboard and Outboard CAC Module 1.25 1.25 1 Installation Test 1.00 1.00 1 Close Access 15.75 28.25 TOTAL FOR WORK PACKAGE 4
**Group 1-2:**

**8. Weight and Balance Changes** Table 10 **Change in Moment (Pound-Inches)**  **Change in Weight (Pounds)**  **Airplane**

+ 27,160 lb-inches + 28 lbs 787-8

NOTE : The Weight and Balance change above includes incorporation of both applicable work packages. **9. Electrical Load Data** Not changed. **10. References A. Existing Data:**  1. Change Notice CN-AA48354C, CN-AA48354D 2. Aircraft Maintenance Manual (AMM) 787 AMM 21-51-19, 3. Boeing Service Related Problem (SRP) 787 SRP-21-0208 **Group 1:** 4. UTC Aerospace Systems, Hamilton Sundstrand Service Bulletin 7010188-21-6 and 7010189-21- 6

**B787-A-21-00-0055-00A-932A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 18 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN Group 2:**  5. UTC Aerospace Systems, Hamilton Sundstrand Service Bulletin 7010097-21-6 and 7010098-21- 6 **Group 1-2:** 6. Standard Overhaul Practices Manual (SOPM) SOPM 20-50-01 7. Standard Wiring Practices Manual (SWPM) SWPM 20-10-11, SWPM 20-10-12, SWPM 20-10-19 **B. Data Supplied with this Service Bulletin:** None. **C. Installation Requirement Modules Used in the Preparation of this Service Bulletin:**
None. **11. Publications Affected** Table 11 **Chapter-Section Publication**  21-51 787 Maintenance Manual ZA1-35, ZA1-36 787 Illustrated Parts Data 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. **12. Interchangeability and Intermixability of Parts Group 1:**  After this service bulletin is incorporated the CACTCS Packs cannot go back to the previous configuration. Refer to UTC Aerospace Systems, Hamilton Sundstrand Service Bulletins 7010188-21-6 and 7010189-21- 6 for additional information. **Group 2:** After this service bulletin is incorporated the CACTCS Packs cannot go back to the previous configuration. Refer to UTC Aerospace Systems, Hamilton Sundstrand Service Bulletins 7010097-21-6 and 7010098-21- 6 for additional information. **Group 1-2: 13. Software Accomplishment Summary**  Not Affected.

**B787-A-21-00-0055-00A-932A-D Applicable To:**  **Issue 002, 12 Mar 2015 End of data module**  Model 787 See Applicability of this data module **Page 19 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**

## Alert Service Bulletin B787-81205-SB210055-00 **MATERIAL INFORMATION**

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN DATA MODULE SB B787-A-21-00-0055-00A-932A-D, PARAGRAPH 1., **Alert:** EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.



## References
**Title Reference**  Work Instructions SB B787-A-21-00-0055-00A-933A-D Issue 002, Step 2. References SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 10. 

## Description **Group 1-2: 1. Material - Price and Availability**  **Group 1:** The operator can supply the parts and materials shown in Paragraph 3., Parts Necessary for Each Airplane,and Paragraph 4., Parts Necessary to Change Spares. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletins 7010188-21-6 and 7010189-21-6. **Group 2:** The operator can supply the parts and materials shown in Paragraph 3., Parts Necessary for Each Airplane,and Paragraph 4., Parts Necessary to Change Spares. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletins 7010097-21-6 and 7010098-21-6. **Group 1-2: 2. Industry Support Information**  Boeing warranty remedies are not available for the configuration changes given in this service bulletin. **3. Parts Necessary for Each Airplane A. Kits/Parts:** 
None.

**B787-A-21-00-0055-00A-934A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 20 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN B. Parts and Materials Supplied by the Operator:** 
Table 1 **Notes Name**  **QTY Part Number /**  **Specification** *[1] *[2] ANTI-SEIZE COMPOUND, GENER- AL PURPOSE 4 Oz. BMS3-28

*[1] *[3] FUEL TANK SEALANT 4 Oz. BMS5-45
*[1] See the Qualified Products List at the end of the Boeing Material Specification (BMS) for supplier data. *[2] BMS3-28 can be used as an accepted substitute for Mo-Lith #2 as referred to in the UTAS service bulletins. *[3] BMS5-45 can be used as an accepted substitute for AMS-S-8802, Type 2, Class C-8(20) sealant as referred to in the UTAS service bulletins. **Group 1:** Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletins 7010188-21-6 and 7010189- 21-6. **Group 2:** Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletins 7010097-21-6 and 7010098- 21-6. **Group 1-2: C. Parts Modified and Reidentified:**  **Group 1:** Reidentify the left and right Non Forward Cargo Air Conditioning (NONFCAC) Cabin Air Conditioning and Temperature Control System (CACTCS) Pack as shown in Data Module SB B787-A-21-00-0055- 00A-933A-D, Step 2., Work Instructions, Work Package 1 and Work Package 2, Step (14). **Group 2:**Reidentify the left and right Forward Cargo Air Conditioning (FCAC) Cabin Air Conditioning and Temperature Control System (CACTCS) Pack as shown in Data Module SB B787-A-21-00-0055-00A-933AD, Step 2., Work Instructions, Work Package 3 and Work Package 4, Step (14). **Group 1-2: D. Parts Removed and Not Replaced:**  **Group 1:** Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletins 7010188-21-6 and 7010189- 21-6. **Group 2:** Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletins 7010097-21-6 and 7010098- 21-6. **Group 1-2: 4. Parts Necessary to Change Spares** 

**B787-A-21-00-0055-00A-934A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 21 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN Group 1:**  Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletins 7010188-21-6 and 7010189-21- 6. **Group 2:** Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletins 7010097-21-6 and 7010098-21- 6. **Group 1-2: 5. Special Tooling - Price and Availability**  None. **6. 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 Data Module SB B787-A-21-00-0055-00A-932A-D, Paragraph 10., References, can be necessary. Examine operator tool supply to make sure all necessary tools are available.

**B787-A-21-00-0055-00A-934A-D Applicable To:**  **Issue 002, 12 Mar 2015 End of data module**  Model 787 See Applicability of this data module **Page 22 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**

## Alert Service Bulletin B787-81205-SB210055-00 **ACCOMPLISHMENT INSTRUCTIONS**

THIS ALERT SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN DATA MODULE SB B787-A-21-00-0055-00A-932A-D, PARAGRAPH 1., **Alert:** EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.



## References
**Title Reference**  References SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 10. Manpower SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 7. Compliance SB B787-A-21-00-0055-00A-932A-D Issue 002, Paragraph 5. Standard Wiring Practices Manual SWPM 20-10-11 Standard Wiring Practices Manual SWPM 20-10-12 Standard Wiring Practices Manual SWPM 20-10-19 BOLT AND NUT INSTALLATION SOPM 20-50-01 APPLICATION OF STENCILS, INSIGNIA, SILK SCREEN, PART NUMBERING AND IDENTIFICATION MARKINGS SOPM 20-50-10

CABIN AIR COMPRESSOR 787 AMM 21-51-19



## Procedure **Group 1-2: 1. 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 Data Module SB B787-A-21-00-0055-00A932A-D, Paragraph 10., References, for definition of the acronyms.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 23 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**2. Obey all of the warnings and cautions given in the specified manual sections. 3. The work instructions are divided into work packages. Task Hours and Elapsed Hours for each package are given in Data Module SB B787-A-21-00-0055-00A-932A-D, Paragraph 7., Manpower. You can do each work package independently. 4. 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 SRM Chapter 51 – Torque Values: – Values for structural fasteners are given in 787 Structural Repair Manual, Chapter 51.– Values for airframe maintenance tasks are included in Chapter 20 of 787 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 787 Aircraft Maintenance Manual (AMM).– Non-standard torque values for maintenance tasks are included in the applicable installation step. 5. Use the approved fastener, process and material substitutions in accordance with SRM Chapter 51. 6. 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. 7. The necessary conditions for selection of clamp type and size are included in SWPM 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 20-10-12 as an accepted procedure to select a clamp that fits correctly. 8. If the length of any fastener specified in this service bulletin does not meet the installationstandards in SRM Chapter 51, then a fastener of the same specification, or an approved substitute, with a length which meets the installation standards in SRM Chapter 51 may be used. In addition, washers may be installed for fastener grip length in accordance with SRM Chapter 51. Refer to SOPM 20-50-01 for alternate full threaded fasteners (screws) needed for installation in this service bulletin. 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. The instructions in Step 2., Work Instructions and the Tasks can include operation of tools or test equipment. Boeing Engineering Tool Drawings, the Illustrated Tool and Equipment Manual, and the Special Tool and Ground Handling Drawing Index contain data on versions of the tools

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 24 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**or test equipment that you can use. It is permitted to use replaced tools. It is not permitted to use superseded tools. 11. 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. 12. 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. 13. This service bulletin includes functional test procedures for the systems changed by this servicebulletin. More functional tests can possibly be necessary in accordance with standard maintenance practices because of interruption to other airplane systems. 14. The compliance times for the actions in Step 2., Work Instructions are in Data Module SB B787- A-21-00-0055-00A-932A-D, Paragraph 5., Compliance. 15. Some steps in the Work Instructions are identified as Required for Compliance (RC). If this service bulletin is mandated by an Airworthiness Directive (AD), then the steps identified as RC must be done to comply with the AD. Alternative procedures for steps not identified with RC can be used if the RC steps can still be done as specified, and the airplane can be put back in aserviceable condition. An Alternative Method of Compliance (AMOC) is not necessary for deviations to steps that are not identified as RC.

**2. WORK INSTRUCTIONS Group 1:**  **A. WORK PACKAGE 1 : LEFT NON FORWARD CARGO AIR CONDITIONING (NONFCAC) CABIN AIR CONDITIONING AND TEMPERATURE CONTROL SYSTEM (CACTCS) PACK, INBOARD AND**  **OUTBOARD CABIN AIR COMPRESSOR (CAC) - CHANGE** NOTE : Both the inboard and the outboard CAC Module on the left Cabin Air Conditioning and Temperature Control System (CACTCS) pack must be replaced at the same time. NOTE: The order in which the following instructions are accomplished may be switched to simplify the CAC change, if necessary. NOTE: The inlet sensor bracket is also referred to as the Left Hand (LH) Remote Sensor Bracket in the UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010188-21-6. NOTE: The electrical surface bond and fay seal data is provided in the applicable 787 AMM 21-51-19 Cabin Air Compressor - Preparation before Installation AMMs. (1) RC - Get access to and remove the outboard CAC Module, with CAC part number 7010101H07through 7010101H08, from the left CACTCS pack. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Removal", as an accepted procedure. NOTE: As an option operators can leave the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during removal. This may simplify the CAC module removal and the CAC module top bracket is replaced as part of this change. This is done by removing the single CAC module top bracket pivot bolt rather than the bolts that attach the top bracket to the CAC module.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 25 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**(2) RC - Get access to and remove the inboard CAC Module, with CAC part number 7010101H07through 7010101H08, from the left CACTCS pack. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Removal", as an accepted procedure. NOTE: As an option operators can leave the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during removal. This may simplify the CAC module removal and the CAC module top bracket is replaced as part of this change. This is done by removing the single CAC module top bracket pivot bolt rather than the bolts that attach the top bracket to the CAC module.(3) Remove the CAC from the outboard CAC module. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Preparation before Installation", as an accepted procedure. NOTE: Remove and keep and discard parts. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010188-21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, remove and keep these parts. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Removal" for the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket removal procedure. (4) Remove the CAC from the inboard CAC module. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Preparation before Installation", as an accepted procedure. NOTE: Remove and keep and discard parts. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010188-21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, remove and keep these parts. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Removal" for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket removal procedure. (5) Prepare the inboard CAC module to be installed to the CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Preparation before Installation", as an accepted procedure. NOTE: Discarded insulation blanket is replaced by CAC insulation and CAC motor housing insulation. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010188- 21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, install the new top bracket, part number 7101247-1, and the kept electrical harness, strap and the inlet sensor and inlet sensor bracket after the port plug installation. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Installation", for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket installation procedure. (6) Prepare the outboard CAC module to be installed to the CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Preparation before Installation", as an accepted procedure. NOTE: Discarded insulation blanket is replaced by CAC insulation and CAC motor housing insulation. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010188- 21-6.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 26 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, install the new top bracket, part number 7101246-5, and the kept electrical harness, strap and the inlet sensor and inlet sensor bracket after the port plug installation. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Installation", for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket installation procedure. (7) Modify the inboard CAC Module and install the new CAC part number 7010101H09. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010188-21-6 as an approved procedure. (8) Modify the outboard CAC Module and install the new CAC part number 7010101H09. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010188-21-6 as an approved procedure. (9) Modify the left CACTCS Pack to support the installation of the modified inboard and outboard CAC Modules. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010188-21-6 as an approved procedure. (10) RC - Install the modified inboard CAC Module, with CAC assembly part number 7010101H09, onto the left CACTCS pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin7010188-21-6 and 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Installation", as accepted procedures. NOTE: If using the ground support equipment referred to in the AMM, operators can avoid damage to the new blanket as follows. When installing the collar assembly of the jack adapter, peel back the insulation so that the insulation is not between the collar and the CAC. After the CAC module is installed and the tool is removed, reposition and re-attach the blanket back onto the CAC module. NOTE: As an option operators can install the inlet housing and flexible duct after the outboard CAC has been installed. When the outboard CAC is being installed, it may prove difficult to line the outboard CAC upper bracket to the 3-way mount bracket. Without the inlet housing and flexible duct installed, it allows more space to install the fasteners required to attach the outboard CAC upper bracket to the 3-way mount bracket. (11) RC - Install the modified outboard CAC Module, with CAC assembly part number 7010101H09, onto the left CACTCS pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010188-21-6 and 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Installation", as accepted procedures. NOTE: If using the ground support equipment referred to in the AMM, operators can avoid damage to the new blanket as follows. When installing the collar assembly of the jack adapter, peel back the insulation so that the insulation is not between the collar and the CAC. After the CAC module is installed and the tool is removed, reposition and re-attach the blanket back onto the CAC module. (12) RC - Do installation test of the inboard CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Installation" as an accepted procedure. If steps in the installation test have not passed, perform the corrective action and repeat the test until the test has passed. (13) RC - Do installation test of the outboard CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Installation" as an accepted procedure. If steps in the installation test have not passed, perform the corrective action and repeat the test until the test has passed. (14) Reidentify the CACTCS Pack. Do one of the following:

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 27 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**(a) For airplanes with existing left side CACTCS Pack part number 7010188H07, mark part number 7010188H08 below the CACTCS Pack identification plate. Also apply the Boeing service bulletin number B787-81205-SB210055-00 and the UTC Aerospace Systems Hamilton Sundstrand service bulletin number 7010188-21-6 below the CACTCS Pack identification plate. Refer to SOPM 20-50-10 as an accepted procedure. (b) For airplanes with existing left side CACTCS Pack part number 7010188H02 through 7010188H06, apply the Boeing service bulletin number B787-81205-SB210055-00 and the UTC Aerospace Systems Hamilton Sundstrand service bulletin number 7010188-21-6 below the CACTCS Pack identification plate. Refer to SOPM 20-50-10 as an accepted procedure. (15) Close access and put the airplane back to a serviceable condition. **Group 1: B. WORK PACKAGE 2 : RIGHT NON FORWARD CARGO AIR CONDITIONING (NONFCAC) CABIN**  **AIR CONDITIONING AND TEMPERATURE CONTROL SYSTEM (CACTCS) PACK, INBOARD AND OUTBOARD CABIN AIR COMPRESSOR (CAC) - CHANGE**  NOTE : Both the inboard and the outboard CAC Module on the right Cabin Air Conditioning and Temperature Control System (CACTCS) pack must be replaced at the same time. NOTE : The order in which the following instructions are accomplished may be switched to simplify the CAC change, if necessary. NOTE : The inlet sensor bracket is also referred to as the Right Hand (RH) CAC Pressure Sensor Bracket in the UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010189-21-6. NOTE : The electrical surface bond and fay seal data is provided in the applicable 787 AMM 21-51-19 Cabin Air Compressor - Preparation before Installation AMMs. (1) RC - Get access to and remove the outboard CAC Module, with CAC part number 7010101H07through 7010101H08, from the right CACTCS pack. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Removal", as an accepted procedure. NOTE: As an option operators can leave the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during removal. This may simplify the CAC module removal and the CAC module top bracket is replaced as part of this change. This is done by removing the single CAC module top bracket pivot bolt rather than the bolts that attach the top bracket to the CAC module. (2) RC - Get access to and remove the inboard CAC Module, with CAC part number 7010101H07through 7010101H08, from the right CACTCS pack. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Removal", as an accepted procedure. NOTE: As an option operators can leave the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during removal. This may simplify the CAC module removal and the CAC module top bracket is replaced as part of this change. This is done by removing the single CAC module top bracket pivot bolt rather than the bolts that attach the top bracket to the CAC module.(3) Remove the CAC from the outboard CAC module. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Preparation before Installation", as an accepted procedure. NOTE: Remove and keep and discard parts. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010189-21-6.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 28 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, remove and keep these parts. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Removal" for the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket removal procedure. (4) Remove the CAC from the inboard CAC module. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Preparation before Installation", as an accepted procedure. NOTE: Remove and keep and discard parts. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010189-21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, remove and keep these parts. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Removal" for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket removal procedure. (5) Prepare the inboard CAC module to be installed to the CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Preparation before Installation", as an accepted procedure. NOTE: Discarded insulation blanket is replaced by CAC insulation and CAC motor housing insulation. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010189- 21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, install the new top bracket, part number 7101247-2, and the kept electrical harness, strap and the inlet sensor and inlet sensor bracket after the port plug installation. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Installation", for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket installation procedure. (6) Prepare the outboard CAC module to be installed to the CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Preparation before Installation", as an accepted procedure. NOTE: Discarded insulation blanket is replaced by CAC insulation and CAC motor housing insulation. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010189- 21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, install the new top bracket, part number 7101246-6, and the kept electrical harness, strap and the inlet sensor and inlet sensor bracket after the port plug installation. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Installation", for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket installation procedure. (7) Modify the inboard CAC Module and install the new CAC part number 7010101H09. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010189-21-6 as an approved procedure. (8) Modify the outboard CAC Module and install the new CAC part number 7010101H09. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010189-21-6 as an approved procedure.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 29 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**(9) Modify the right CACTCS Pack to support the installation of the modified inboard and outboard CAC Modules. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010189- 21-6 as an approved procedure. (10) RC - Install the modified inboard CAC Module, with CAC assembly part number 7010101H09, onto the right CACTCS pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010189-21-6 and 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Installation", as accepted procedures. NOTE: If using the ground support equipment referred to in the AMM, operators can avoid damage to the new blanket as follows. When installing the collar assembly of the jack adapter, peel back the insulation so that the insulation is not between the collar and the CAC. After the CAC module is installed and the tool is removed, reposition and re-attach the blanket back onto the CAC module. (11) RC - Install the modified outboard CAC Module, with CAC assembly part number 7010101H09, onto the right CACTCS pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010189-21-6 and 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Installation", as accepted procedures. NOTE: If using the ground support equipment referred to in the AMM, operators can avoid damage to the new blanket as follows. When installing the collar assembly of the jack adapter, peel back the insulation so that the insulation is not between the collar and the CAC. After the CAC module is installed and the tool is removed, reposition and re-attach the blanket back onto the CAC module. (12) RC - Do installation test of the inboard CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Installation" as an accepted procedure. If steps in the installation test have not passed, perform the corrective action and repeat the test until the test has passed. (13) RC - Do installation test of the outboard CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Installation" as an accepted procedure. If steps in the installation test have not passed, perform the corrective action and repeat the test until the test has passed. (14) Reidentify the CACTCS Pack. Do one of the following: (a) For airplanes with existing right side CACTCS Pack part number 7010189H07, mark part number 7010189H08 below the CACTCS Pack identification plate. Also apply the Boeing service bulletin number B787-81205-SB210055-00 and the UTC Aerospace Systems Hamilton Sundstrand service bulletin number 7010189-21-6 below the CACTCS Pack identification plate. Refer to SOPM 20-50-10 as an accepted procedure. (b) For airplanes with existing right side CACTCS Pack part number 7010189H02 through 7010189H06, apply the Boeing service bulletin number B787-81205-SB210055-00 and the UTC Aerospace Systems Hamilton Sundstrand service bulletin number 7010189-21-6 below the CACTCS Pack identification plate. Refer to SOPM 20-50-10 as an accepted procedure. (15) Close access and put the airplane back to a serviceable condition.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 30 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN Group 2:**  **C. WORK PACKAGE 3 : LEFT FORWARD CARGO AIR CONDITIONING (FCAC) CABIN AIR CONDITIONING AND TEMPERATURE CONTROL SYSTEM (CACTCS) PACK, INBOARD AND**  **OUTBOARD CABIN AIR COMPRESSOR (CAC) - CHANGE** NOTE: Both the inboard and the outboard CAC Module on the left Cabin Air Conditioning and Temperature Control System (CACTCS) pack must be replaced at the same time. NOTE: The order in which the following instructions are accomplished may be switched to simplify the CAC change, if necessary. NOTE: The inlet sensor bracket is also referred to as the Left Hand (LH) Remote Sensor Bracket in the UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010097-21-6. NOTE: The electrical surface bond and fay seal data is provided in the applicable 787 AMM 21-51-19 Cabin Air Compressor - Preparation before Installation AMMs. (1) RC - Get access to and remove the outboard CAC Module, with CAC part number 7010101H07through 7010101H08, from the left CACTCS pack. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Removal", as an accepted procedure. NOTE: As an option operators can leave the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during removal. This may simplify the CAC module removal and the CAC module top bracket is replaced as part of this change. This is done by removing the single CAC module top bracket pivot bolt rather than the bolts that attach the top bracket to the CAC module. (2) RC - Get access to and remove the inboard CAC Module, with CAC part number 7010101H07through 7010101H08, from the left CACTCS pack. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Removal", as an accepted procedure. NOTE: As an option operators can leave the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during removal. This may simplify the CAC module removal and the CAC module top bracket is replaced as part of this change. This is done by removing the single CAC module top bracket pivot bolt rather than the bolts that attach the top bracket to the CAC module.(3) Remove the CAC from the outboard CAC module. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Preparation before Installation", as an accepted procedure. NOTE: Remove and keep and discard parts. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010097-21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, remove and keep these parts. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Removal" for the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket removal procedure. (4) Remove the CAC from the inboard CAC module. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Preparation before Installation", as an accepted procedure. NOTE: Remove and keep and discard parts. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010097-21-6.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 31 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, remove and keep these parts. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Removal" for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket removal procedure. (5) Prepare the inboard CAC module to be installed to the CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Preparation before Installation", as an accepted procedure. NOTE: Discarded insulation blanket is replaced by CAC insulation and CAC motor housing insulation. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010097- 21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, install the new top bracket, part number 7101247-1, and the kept electrical harness, strap and the inlet sensor and inlet sensor bracket after the port plug installation. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Installation", for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket installation procedure. (6) Prepare the outboard CAC module to be installed to the CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Preparation before Installation", as an accepted procedure. NOTE: Discarded insulation blanket is replaced by CAC insulation and CAC motor housing insulation. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010097- 21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, install the new top bracket, part number 7101246-5, and the kept electrical harness, strap and the inlet sensor and inlet sensor bracket after the port plug installation. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Installation", for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket installation procedure. (7) Modify the inboard CAC Module and install the new CAC part number 7010101H09. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010097-21-6 as an approved procedure. (8) Modify the outboard CAC Module and install the new CAC part number 7010101H09. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010097-21-6 as an approved procedure. (9) Modify the left CACTCS Pack to support the installation of the modified inboard and outboard CAC Modules. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010097-21-6 as an approved procedure. (10) RC - Install the modified inboard CAC Module, with CAC assembly part number 7010101H09, onto the left CACTCS pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin7010097-21-6 and 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Installation", as accepted procedures. NOTE: If using the ground support equipment referred to in the AMM, operators can avoid damage to the new blanket as follows. When installing the collar assembly of the jack adapter, peel back the insulation so that the insulation is not between the collar and the CAC. After the CAC module is installed and the tool is removed, reposition and re-attach the blanket back onto the CAC module.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 32 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**NOTE: As an option operators can install the inlet housing and flexible duct after the outboard CAC has been installed. When the outboard CAC is being installed, it may prove difficult to line the outboard CAC upper bracket to the 3-way mount bracket. Without the inlet housing and flexible duct installed, it allows more space to install the fasteners required to attach the outboard CAC upper bracket to the 3-way mount bracket. (11) RC - Install the modified outboard CAC Module, with CAC assembly part number 7010101H09, onto the left CACTCS pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010097-21-6 and 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Installation", as accepted procedures. NOTE: If using the ground support equipment referred to in the AMM, operators can avoid damage to the new blanket as follows. When installing the collar assembly of the jack adapter, peel back the insulation so that the insulation is not between the collar and the CAC. After the CAC module is installed and the tool is removed, reposition and re-attach the blanket back onto the CAC module. (12) RC - Do installation test of the inboard CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Inboard - Installation" as an accepted procedure. If steps in the installation test have not passed, perform the corrective action and repeat the test until the test has passed. (13) RC - Do installation test of the outboard CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Left Outboard - Installation" as an accepted procedure. If steps in the installation test have not passed, perform the corrective action and repeat the test until the test has passed. (14) Reidentify the CACTCS Pack. Do one of the following: (a) For airplanes with existing left side CACTCS Pack part number 7010097H07, mark part number 7010097H08 below the CACTCS Pack identification plate. Also apply the Boeing service bulletin number B787-81205-SB210055-00 and the UTC Aerospace Systems Hamilton Sundstrand service bulletin number 7010097-21-6 below the CACTCS Pack identification plate. Refer to SOPM 20-50-10 as an accepted procedure. (b) For airplanes with existing left side CACTCS Pack part number 7010097H02 through 7010097H06, apply the Boeing service bulletin number B787-81205-SB210055-00 and the UTC Aerospace Systems Hamilton Sundstrand service bulletin number 7010097-21-6 below the CACTCS Pack identification plate. Refer to SOPM 20-50-10 as an accepted procedure. (15) Close access and put the airplane back to a serviceable condition. **Group 2: D. WORK PACKAGE 4 : RIGHT FORWARD CARGO AIR CONDITIONING (FCAC) CABIN AIR**  **CONDITIONING AND TEMPERATURE CONTROL SYSTEM (CACTCS) PACK, INBOARD AND OUTBOARD CABIN AIR COMPRESSOR (CAC) - CHANGE**  NOTE : Both the inboard and the outboard CAC Module on the right Cabin Air Conditioning and Temperature Control System (CACTCS) pack must be replaced at the same time. NOTE: The order in which the following instructions are accomplished may be switched to simplify the CAC change, if necessary. NOTE: The inlet sensor bracket is also referred to as the Right Hand (RH) CAC Pressure Sensor Bracket in the UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010098-21-6.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 33 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**NOTE : The electrical surface bond and fay seal data is provided in the applicable 787 AMM 21-51-19 Cabin Air Compressor - Preparation before Installation AMMs. (1) RC - Get access to and remove the outboard CAC Module, with CAC part number 7010101H07through 7010101H08, from the right CACTCS pack. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Removal", as an accepted procedure. NOTE: As an option operators can leave the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during removal. This may simplify the CAC module removal and the CAC module top bracket is replaced as part of this change. This is done by removing the single CAC module top bracket pivot bolt rather than the bolts that attach the top bracket to the CAC module. (2) RC - Get access to and remove the inboard CAC Module, with CAC part number 7010101H07through 7010101H08, from the right CACTCS pack. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Removal", as an accepted procedure. NOTE: As an option operators can leave the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during removal. This may simplify the CAC module removal and the CAC module top bracket is replaced as part of this change. This is done by removing the single CAC module top bracket pivot bolt rather than the bolts that attach the top bracket to the CAC module.(3) Remove the CAC from the outboard CAC module. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Preparation before Installation", as an accepted procedure. NOTE: Remove and keep and discard parts. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010098-21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, remove and keep these parts. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Removal" for the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket removal procedure. (4) Remove the CAC from the inboard CAC module. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Preparation before Installation", as an accepted procedure. NOTE: Remove and keep and discard parts. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010098-21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, remove and keep these parts. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Removal" for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket removal procedure. (5) Prepare the inboard CAC module to be installed to the CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Preparation before Installation", as an accepted procedure. NOTE: Discarded insulation blanket is replaced by CAC insulation and CAC motor housing insulation. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010098- 21-6.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 34 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, install the new top bracket, part number 7101247-2, and the kept electrical harness, strap and the inlet sensor and inlet sensor bracket after the port plug installation. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Installation", for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket installation procedure. (6) Prepare the outboard CAC module to be installed to the CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right outboard - Preparation before Installation", as an accepted procedure. NOTE: Discarded insulation blanket is replaced by CAC insulation and CAC motor housing insulation. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010098- 21-6. NOTE: If the operator chose to keep the top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket attached to the CAC module during the CAC module removal, install the new top bracket, part number 7101246-6, and the kept electrical harness, strap and the inlet sensor and inlet sensor bracket after the port plug installation. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Installation", for top bracket, electrical harness, strap, inlet sensor and inlet sensor bracket installation procedure. (7) Modify the inboard CAC Module and install the new CAC part number 7010101H09. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010098-21-6 as an approved procedure. (8) Modify the outboard CAC Module and install the new CAC part number 7010101H09. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010098-21-6 as an approved procedure. (9) Modify the right CACTCS Pack to support the installation of the modified inboard and outboard CAC Modules. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010098- 21-6 as an approved procedure. (10) RC - Install the modified inboard CAC Module, with CAC assembly part number 7010101H09, onto the right CACTCS pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010098-21-6 and 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Installation", as accepted procedures. NOTE: If using the ground support equipment referred to in the AMM, operators can avoid damage to the new blanket as follows. When installing the collar assembly of the jack adapter, peel back the insulation so that the insulation is not between the collar and the CAC. After the CAC module is installed and the tool is removed, reposition and re-attach the blanket back onto the CAC module. (11) RC - Install the modified outboard CAC Module, with CAC assembly part number 7010101H09, onto the right CACTCS pack. Refer to UTC Aerospace Systems, Hamilton Sundstrand service bulletin 7010098-21-6 and 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Installation", as accepted procedures. NOTE: If using the ground support equipment referred to in the AMM, operators can avoid damage to the new blanket as follows. When installing the collar assembly of the jack adapter, peel back the insulation so that the insulation is not between the collar and the CAC. After the CAC module is installed and the tool is removed, reposition and re-attach the blanket back onto the CAC module.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015** Model 787 See Applicability of this data module **Page 35 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**(12) RC - Do installation test of the inboard CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Inboard - Installation" as an accepted procedure. If steps in the installation test have not passed, perform the corrective action and repeat the test until the test has passed. (13) RC - Do installation test of the outboard CAC. Refer to 787 AMM 21-51-19 "Cabin Air Compressor - Right Outboard - Installation" as an accepted procedure. If steps in the installation test have not passed, perform the corrective action and repeat the test until the test has passed. (14) Reidentify the CACTCS Pack. Do one of the following: (a) For airplanes with existing right side CACTCS Pack part number 7010098H07, mark part number 7010098H08 below the CACTCS Pack identification plate. Also apply the Boeing service bulletin number B787-81205-SB210055-00 and the UTC Aerospace Systems Hamilton Sundstrand service bulletin number 7010098-21-6 below the CACTCS Pack identification plate. Refer to SOPM 20-50-10 as an accepted procedure. (b) For airplanes with existing right side CACTCS Pack part number 7010098H02 through 7010098H06, apply the Boeing service bulletin number B787-81205-SB210055-00 and the UTC Aerospace Systems Hamilton Sundstrand service bulletin number 7010098-21-6 below the CACTCS Pack identification plate. Refer to SOPM 20-50-10 as an accepted procedure. (15) Close access and put the airplane back to a serviceable condition.

**B787-A-21-00-0055-00A-933A-D Applicable To:**  **Issue 002, 12 Mar 2015 End of data module**  Model 787 See Applicability of this data module **Page 36 of 36** EXPORT CONTROLLED ECCN: 9E991 BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET. See title page for details. **B787-81205-SB210055-00 Issue 001, 12 Mar 2015**  **AIRCRAFT SERVICE BULLETIN**