Boeing ASB 747-25A3580: Boeing - Service Bulletin, text

TextPartly OCR

Some pages are OCR from a scan. OCR can misread letters and numbers.

Query with SQL

duckdb -csv -c "SELECT p.page, p.text_source, p.text, f.rights_holder, f.license
  FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256)
  WHERE p.file_sha256 = '61f2a77ec0e52ce95b42b70e11fdd1a776c9c82ec58a14a32b729f5415d53e98'
  ORDER BY p.page"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SELECT p.page, p.text_source, p.text, f.rights_holder, f.license
FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256)
WHERE p.file_sha256 = '61f2a77ec0e52ce95b42b70e11fdd1a776c9c82ec58a14a32b729f5415d53e98'
ORDER BY p.page

Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.

Page 1Open in PDF

Commercial Airplanes 747 Service Bulletin ALERT Number: 747-25A3580 Original Issue: September 23, 2010 Revision 1: July 14, 2011 ATA System: 2500 SUBJECT: EQUIPMENT/FURNISHINGS - Cargo and Accessory Compartments - M826 Cardfile Drip Shield Change Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 730-774). An export license may be required before it is used for development, production or use by foreign persons from specific countries. The controller of this data has the individual responsibility to abide by all export laws.

9E991ECCN:

BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2010 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter. Boeing also claims copyright in this document as a compilation and/or collective work.

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

Treatment of the document and the information it contains is governed by contract with Boeing. For more information, contact The Boeing Company, P.O. Box 3707, Seattle, Washington 98124.

Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner, BBJ, DC-8, DC-9, DC-10, KC-10, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, Poseidon and the Boeing livery are all trademarks owned by The Boeing Company; and no trademark license is granted in connection with this document unless provided in writing by Boeing.

Original Issue: September 23, 2010 747-25A3580Revision 1: July 14, 2011 1 of 85

3.0

Page 2Open in PDF

Original Issue: September 23, 2010 747-25A3580Revision 1: July 14, 2011 2 of 85 BOEING SERVICE BULLETIN 747-25A3580

ALERTALERT

BLANK PAGE

Page 3Open in PDF

Table of Contents

Revision Transmittal Sheet5

Summary7

1. PLANNING INFORMATION ........................................ 1 1 A. Effectivity ............................................... 1 1

1. Airplanes ............................................ 1 1

2. Spares Affected ........................................ 1 4 B. Concurrent Requirements ...................................... 1 4 C. Reason ................................................ 1 4 D. Description .............................................. 1 4 E. Compliance .............................................. 1 5 F. Approval ............................................... 1 5 G. Manpower .............................................. 1 5 H. Weight and Balance Changes .................................... 1 8 I. Electrical Load Data ......................................... 1 9 J. References .............................................. 2 0

1. Existing Data .......................................... 2 0

2. Data supplied with this Service Bulletin ............................ 2 0

3. Installation Drawings Used in the Preparation of this Service Bulletin ............ 2 0 K. Publications Affected ........................................ 2 0 L. Interchangeability and Intermixability of Parts ........................... 2 0

2. MATERIAL INFORMATION ........................................ 2 1 A. Material - Price and Availability ................................... 2 1 B. Industry Support Information .................................... 2 3 C. Parts Necessary For Each Airplane ................................. 2 3

1. Kits/Parts ............................................ 2 3

2. Parts and Materials Supplied by the Operator ........................ 2 7

3. Parts Modified and Reidentified ................................ 2 7

4. Parts Removed and Not Replaced .............................. 2 7 D. Parts Necessary to Change Spares ................................. 2 8 E. Special Tooling - Price and Availability ............................... 2 8 F. Special Tooling Necessary to do this Service Bulletin ....................... 2 8

3. ACCOMPLISHMENT INSTRUCTIONS .................................. 2 9 A. GENERAL INFORMATION ..................................... 2 9 B. WORK INSTRUCTIONS ....................................... 3 0 FIGURE 1: EXISTING DRIP SHIELD REMOVAL [Group 2, 4] ...................... 3 2 FIGURE 2: EXISTING DRIP SHIELD REMOVAL [Group 1, 3] ...................... 3 5 FIGURE 3: AFT DRAIN TUBE INSTALLATION [Group 1-4, Configuration 2] .............. 3 8 FIGURE 4: FORWARD DRAIN TUBE INSTALLATION [Group 1-4, Configuration 2] .......... 4 2 FIGURE 5: WIRE BUNDLES W1341, W5172, W1231, W1235, W1765 RELOCATION [Group 1-2] . . 49 FIGURE 6: WIRE BUNDLES W1341, W4753, W4756, W4762, W5172 RELOCATION [Group 3] . . . 55 FIGURE 7: WIRE BUNDLES W1231, W1235, W1765 RELOCATION [Group 4] ............ 6 1 FIGURE 8: NEW DRIP SHIELD INSTALLATION ............................. 6 7 FIGURE 9: FIGURE DELETED ....................................... 7 5 FIGURE 10: DRIP SHIELD DEFLECTOR INSTALLATION ........................ 7 6 FIGURE 11: INSULATION BLANKET REMOVAL ............................. 8 0

Original Issue: September 23, 2010 747-25A3580Revision 1: July 14, 2011 3 of 85 BOEING SERVICE BULLETIN 747-25A3580

ALERTALERT

Page 4Open in PDF

FIGURE 12: INSULATION BLANKET INSTALLATION ........................... 8 3

Original Issue: September 23, 2010 747-25A3580Revision 1: July 14, 2011 4 of 85 BOEING SERVICE BULLETIN 747-25A3580

ALERTALERT

Page 5Open in PDF

Commercial Airplanes 747 Service Bulletin ALERT Revision Transmittal SheetNumber: 747-25A3580Original Issue: September 23, 2010 Revision 1: July 14, 2011 ATA System: 2500 SUBJECT: EQUIPMENT/FURNISHINGS - Cargo and Accessory Compartments - M826 Cardfile Drip Shield Change This revision includes all pages of the service bulletin.

COMPLIANCE INFORMATION RELATED TO THIS REVISION No more work is necessary on the airplane(s) changed in accordance with the original issue of this service bulletin.

REASON FOR REVISION This revision is sent to make changes to the SB to correct an interference issue found during part mock-up for the 747-8.

These sections were changed:

1. Figure 8 - Sequence of steps changed to make installation of parts easier.

2. Figure 9 - Figure has been deleted.

3. Figure 10 - Added instructions to install deflector shield at STA 340.

4. Figure 11 - New Figure added to remove existing insulation blanket.

5. Figure 12 - New Figure added to install new insulation blanket.

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 September 23, 2010Original Issue:

July 14, 2011Revision 1:

Original Issue: September 23, 2010 747-25A3580Revision 1: July 14, 2011 5 of 85

Page 6Open in PDF

Original Issue: September 23, 2010 747-25A3580Revision 1: July 14, 2011 6 of 85 BOEING SERVICE BULLETIN 747-25A3580

ALERTALERT

BLANK PAGE

Page 7Open in PDF

Commercial Airplanes 747 Service Bulletin ALERT SummaryNumber: 747-25A3580Original Issue: September 23, 2010 Revision 1: July 14, 2011 ATA System: 2500 SUBJECT: EQUIPMENT/FURNISHINGS - Cargo and Accessory Compartments - M826 Cardfile Drip Shield Change

THIS BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH

1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.

CONCURRENT REQUIREMENTS None.

BACKGROUND This service bulletin will mitigate water from exiting over the edge of the existing drip shield and contaminating electrical components in the M826 cardfile below. If this service bulletin is not incorporated, electrical components in the M826 cardfile can malfunction due to water contamination which could result in an electrical short and potential loss of several functions essential for safe flight.

An Operator reported finding evidence of water damage to Diode Fire Card 285U0072-1 in the M826 Automatic Fire Overheat Logic Test System (AFOLTS) cardfile following a false FWD CARGO FIRE message which resulted in an Air Turn Back (ATB). Measurements showed the drip shield sloped away from the two drains added by SB 747-25A3370 (-400F) and SB 747-25A3526 (-400 Boeing Converted Freighter) and mandated by Airworthiness Directive (AD). Boeing's subsequent investigation found other reports of water damage to circuit cards in M826 affecting several operators.

This service bulletin replaces the existing drip shield with a new drip shield, installs a new drip shield deflector on the STA 400 bulkhead, and relocates wire bundles that interfere with these installations.

Boeing Service Related Problem (SRP) 747-SRP-25-0282 is related to this service bulletin.

ACTION (PRR 85901-100RS)

- Remove existing drip shield

- Install new drip shield

- Install new drip shield deflector

- Relocate existing wire bundles

Original Issue: September 23, 2010 747-25A3580Revision 1: July 14, 2011 7 of 85

Page 8Open in PDF

EFFECTIVITY 747-400F Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes.

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 24 months after the original issue date of this service bulletin.

INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are available for airplanes in warranty as of October 8, 2008. Please refer to Paragraph

2.B., Industry Support Information.

MANPOWER Group 1-4, Configuration 1:

Elapsed HoursTotal Task HoursAirplanes

9.5512.05Group 1-4, Configuration 1 Group 1-4, Configuration 2:

Elapsed HoursTotal Task HoursAirplanes

15.5518.05Group 1-4, Configuration 2

MATERIAL INFORMATION Boeing Supplied Kits/Parts.

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

Original Issue: September 23, 2010 747-25A3580Revision 1: July 14, 2011 8 of 85 BOEING SERVICE BULLETIN 747-25A3580

ALERTALERT

Page 9OCROpen in PDF

BOEING SERVICE BULLETIN 747-25A3580

ALERT ALERT

- REMOVE EXISTING DRIP SHIELD -INSTALL NEW DRIP SHIELD

- INSTALL NEW DRIP SHIELD

DEFLECTOR -RELOCATE EXISTING WIRE

BUNDLES STA 380 STA 360 1963398 Original Issue: September 23, 2010 Revision 1: July 14, 2011 747-25A3580

Page 10Open in PDF

Original Issue: September 23, 2010 747-25A3580Revision 1: July 14, 2011 10 of 85 BOEING SERVICE BULLETIN 747-25A3580

ALERTALERT

BLANK PAGE

Page 11Open in PDF

THIS BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH

1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.

1. PLANNING INFORMATION A. Effectivity

1. Airplanes Refer to Service Bulletin Index Document D6-30300 Part 3 for Airplane Variable Number, Line Number, and Serial Number data.

This service bulletin is for the airplanes shown below. Refer to PRR 85901-100RS for data about this change.

DESCRIPTIONCONFIGURATIONGROUP 747-400F airplanes line numbers 1087 to 1360 that have to relocate wire bundles W1341, W5172, W1231, W1235, W1765 -1 747-400F airplanes line numbers 1087 to 1360 that have to relocate wire bundles W1341, W5172, W1231, W1235, W1765, and have accomplished SB 747-25A3370.

1 747-400F airplanes line numbers 1087 to 1360 that have to relocate wire bundles W1341, W5172, W1231, W1235, W1765, and have not accomplished SB 747-25A3370.

Original Issue: September 23, 2010 747-25A3580Revision 1: July 14, 2011 11 of 85

Page 12Open in PDF

DESCRIPTIONCONFIGURATIONGROUP 747-400F airplanes line numbers 1361 to 1418 that have to relocate wire bundles W1341, W5172, W1231, W1235, W1765 -2 747-400F airplanes line numbers 1361 to 1418 that have to relocate wire bundles W1341, W5172, W1231, W1235, W1765, and have accomplished SB 747-25A3370.

1 747-400F airplanes line numbers 1361 to 1418 that have to relocate wire bundles W1341, W5172, W1231, W1235, W1765, and have not accomplished SB 747-25A3370.

2 747-400F airplanes that have to relocate wire bundles W1341, W4753, W4756, W4762, W5172.

-3 747-400F airplanes that have to relocate wire bundles W1341, W4753, W4756, W4762, W5172, and have accomplished SB 747-25A3370.

1 747-400F airplanes that have to relocate wire bundles W1341, W4753, W4756, W4762, W5172, and have not accomplished SB 747-25A3370.

2 747-400F airplanes that have to relocate wire bundles W1231, W1235, W1765 -4 747-400F airplanes that have to relocate wire bundles W1231, W1235, W1765, and have accomplished SB 747-25A3370.

1 747-400F airplanes that have to relocate wire bundles W1231, W1235, W1765, and have not accomplished SB 747-25A3370.

2 Airplane Models:

747-400F GroupVariable Number 1RL401 - RL403 1RL411 - RL427 2RL428 - RL430 1RL431 - RL434 2RL435 - RL436 1RL451 - RL453 2RL454 - RL456 1RL461 - RL462

Original Issue: September 23, 2010 747-25A3580Revision 1: July 14, 2011 12 of 85 BOEING SERVICE BULLETIN 747-25A3580

ALERTALERT

Pages 13–24 of 85