Boeing ASB 747-53A2808: No revision named, 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 = 'b058ef43bad80d5e30afb4b22968491d681d0a9be4815a7985287cafaf974772'
  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 = 'b058ef43bad80d5e30afb4b22968491d681d0a9be4815a7985287cafaf974772'
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: 747-53A2808 Original Issue: November 30, 2012 ATA System: 5311 SUBJECT: FUSELAGE - Main Frame - Nose Wheel Well Side and Top Panel - Web and Stiffener Replacement Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 300-774). An export license may be required before it is used for development, production or use by foreign persons from specific countries. The controller of this data has the individual responsibility to abide by all export laws.

9E991ECCN:

Treatment of this document and its content is governed by contract with Boeing. Rights to use this document are licensed on a per aircraft basis and such rights may not be transferable. For more information, contact The Boeing Company.

Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner™, BBJ, DC-8, DC-9, DC-10, KC-10, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, 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. BOEING is a trademark of Boeing Management Company.

Original Issue: November 30, 2012 747-53A2808 1 of 93

3.0

Page 2Open in PDF

Original Issue: November 30, 2012 747-53A2808 2 of 93 BOEING SERVICE BULLETIN 747-53A2808

ALERTALERT

BLANK PAGE

Page 3Open in PDF

Table of Contents

Summary5

1. PLANNING INFORMATION9

A. Effectivity9

1. Airplanes9

2. Spares Affected ........................................ 1 0 B. Concurrent Requirements ...................................... 1 0 C. Reason ................................................ 1 1 D. Description .............................................. 1 1 E. Compliance .............................................. 1 2 F. Approval ............................................... 1 5 G. Manpower .............................................. 1 6 H. Weight and Balance Changes .................................... 1 6 I. Electrical Load Data ......................................... 1 6 J. References .............................................. 1 7

1. Existing Data: ......................................... 1 7

2. Data Supplied with this Service Bulletin: ........................... 1 7

3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 1 8 K. Publications Affected ........................................ 1 8 L. Interchangeability and Intermixability of Parts ........................... 1 8 M. Software Accomplishment Summary ................................ 1 9

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

1. Kits/Parts: ........................................... 2 1

2. Parts and Materials Supplied by the Operator: ........................ 3 6

3. Parts Modified and Reidentified: ............................... 3 6

4. Parts Removed and Not Replaced: .............................. 3 6 D. Parts Necessary to Change Spares ................................. 3 6 E. Special Tooling - Price and Availability ............................... 3 6 F. Special Tooling Necessary to do this Service Bulletin ....................... 3 6

3. ACCOMPLISHMENT INSTRUCTIONS .................................. 3 7 A. GENERAL INFORMATION ..................................... 3 7 B. WORK INSTRUCTIONS ....................................... 3 8 FIGURE 1: REMOVALS FOR ACCESS AT NOSE WHEEL WELL STA 260 BULKHEAD ....... 4 8 FIGURE 2: REMOVALS FOR ACCESS AT NOSE WHEEL WELL STA 340 BULKHEAD ....... 5 0 FIGURE 3: REMOVAL OF TOP PANEL [Group 1] ............................ 5 2 FIGURE 4: LEFT SIDE PANEL REPLACEMENT [Group 1] ....................... 5 5 FIGURE 5: RIGHT SIDE PANEL REPLACEMENT [Group 1] ....................... 5 8 FIGURE 6: INSTALLATION OF TOP PANEL [Group 1] .......................... 6 1 FIGURE 7: RESTORATION AT NOSE WHEEL WELL STA 340 BULKHEAD .............. 6 4 FIGURE 8: RESTORATION AT NOSE WHEEL WELL STA 260 BULKHEAD .............. 6 6 FIGURE 9: REMOVAL OF TOP PANEL COMPONENTS [Group 2] ................... 6 8 FIGURE 10: LEFT SIDE PANEL REPLACEMENT [Group 2] ....................... 7 1 FIGURE 11: RIGHT SIDE PANEL REPLACEMENT ............................ 7 4 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

Original Issue: November 30, 2012 747-53A2808 3 of 93 BOEING SERVICE BULLETIN 747-53A2808

ALERTALERT

Page 4Open in PDF

FIGURE 12: INSTALLATION OF NEW TOP PANEL COMPONENTS [Group 2] ............. 7 7 FIGURE 13: POST MODIFICATION INSPECTION - SIDE PANEL WEB EXTERNAL DETAILED INSPECTION .................................................. 8 0 FIGURE 14: POST MODIFICATION INSPECTION - TOP PANEL WEB EXTERNAL DETAILED INSPECTION .................................................. 8 3 FIGURE 15: POST MODIFICATION INSPECTION - TOP AND SIDE PANEL STIFFENER INTERNAL DETAILED AND HFEC INSPECTIONS ............................ 8 6 APPENDIX A: NOSE WHEEL WELL MODIFICATION - SUGGESTED SEQUENCE OF STEPS ..... 8 9 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

Original Issue: November 30, 2012 747-53A2808 4 of 93 BOEING SERVICE BULLETIN 747-53A2808

ALERTALERT

Page 5Open in PDF

Commercial Airplanes 747 Service Bulletin ALERT SummaryNumber: 747-53A2808Original Issue: November 30, 2012 ATA System: 5311 SUBJECT: FUSELAGE - Main Frame - Nose Wheel Well Side and Top Panel - Web and Stiffener Replacement

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 Accomplishment of the modification in this service bulletin will ensure the structural integrity of the nose wheel well top and side panels. Widespread Fatigue Damage (WFD) in the nose wheel well top and side panels could result in a depressurization event with damage significant enough to adversely affect the structural integrity of the fuselage.

Boeing has received 16 reports of cracking in the nose wheel well top panel and side panel webs and/or stiffeners.

One airplane lost pressurization due to cracking in a nose wheel well side panel. Boeing has determined that all the cracks were caused by fatigue.

The nose wheel well top and side panels have been determined to be structure that is susceptible to develop WFD. Although loss of pressurization due to cracks in the nose wheel well structure is not necessarily an airplane safety concern, WFD could result in a nose wheel well depressurization event severe enough to reduce the structural integrity of the fuselage. Due to the concern of WFD in the nose wheel well top and side panel structure, Boeing recommends that operators accomplish the modification given in this service bulletin.

Group 1:

This service bulletin gives instructions to modify the nose wheel well top panel and side panels by replacing the existing webs, support beams, and stiffeners with improved parts. The modifications in this service bulletin will eliminate the concern of WFD in the nose wheel well.

Group 2:

This service bulletin gives instructions to modify the nose wheel well side panels by replacing the existing webs, support beams, and stiffeners with improved parts. This service bulletin will also modify the nose wheel well top panel by replacing the existing support beams and stiffeners with improved parts. The modifications in this service bulletin will eliminate the concern of WFD in the nose wheel well.

For more information about WFD, refer to Boeing Service Letter 747-SL-53-088.

Original Issue: November 30, 2012 747-53A2808 5 of 93

Page 6Open in PDF

The modification given in this service bulletin terminates the repetitive inspections given in Service Bulletin 747-53A2465.

Boeing Service Related Problem (SRP) 747-SRP-53-0339 is related to this Service Bulletin.

Boeing Fleet Team Digest articles 747 FTD 53-04002 and 747 FTD 53-12006 are related to this service bulletin.

This table is provided to operators for planning purposes only. Refer to the applicable sections for more information.

ReferenceAffectedPlanning Data Paragraph 1.A.2., Spares AffectedNoSpares Affected Paragraph 1.E., Compliance and Paragraph

1.F., Approval YesAD Related Paragraph 1.H., Weight and Balance ChangesYesWeight and Balance Change Paragraph 1.I., Electrical Load DataNoElectrical Load Changed Paragraph 1.K., Publications AffectedYesPublications Affected Paragraph 1.K., Publications AffectedNoAirplane Flight Operations Affected (Flight Crew Operations Manual and/or FAA Approved Airplane Flight Manual) Paragraph 2.C.1., Kits/PartsYesKits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator YesOperator Supplied Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION (PRR 85901-99RS) Open the nose landing gear doors, and jack the airplane. Remove the nose landing gear, nose landing gear doors, nose landing gear door actuator, passenger seats, floor covering, floor panels, and insulation as necessary to get access to the upper, left, and right hand webs in the nose wheel well.

Group 1:

Modify the nose wheel well top and side panels by replacing the existing webs, support beams, and stiffeners with improved parts.

Group 2:

Modify the nose wheel well side panels by replacing the existing webs, support beams, and stiffeners with improved parts. Modify the nose wheel well top panel by replacing the existing support beams and stiffeners with improved parts.

Install all parts removed for access at completion of the modification, and return the airplane to a serviceable condition.

Do post-modification detailed and high frequency eddy current (HFEC) inspections at the time specified in Paragraph 1.E., Compliance. If any crack is found, contact Boeing for repair instructions and do the repair.

Original Issue: November 30, 2012 747-53A2808 6 of 93 BOEING SERVICE BULLETIN 747-53A2808

ALERTALERT

Page 7Open in PDF

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

COMPLIANCE Federal Aviation Administration (FAA) Airworthiness Directive AD 2006-22-15 is related to this service bulletin.

Refer to Paragraph 1.E., Compliance.

INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the modification given in this service bulletin.

MANPOWER Refer to Paragraph 1.G., Manpower.

MATERIAL INFORMATION Boeing Supplied Kits/Parts.

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

Original Issue: November 30, 2012 747-53A2808 7 of 93 BOEING SERVICE BULLETIN 747-53A2808

ALERTALERT

Page 8OCROpen in PDF

BOEING SERVICE BULLETIN 747-53A2808

ALERT ALERT 00000000000000 GROUP 1:

MODIFY THE TOP PANEL BY REPLACING

THE EXISTING WEB, SUPPORT BEAMS,

AND STIFFENERS WITH IMPROVED PARTS GROUP 2:

MODIFY THE TOP PANEL BY REPLACING

THE EXISTING SUPPORT BEAMS AND STIFFENERS WITH IMPROVED PARTS.

STA 280 STA 400 STA 340 STA 400 BL GROUP 1-2:

MODIFY THE LEFT AND RIGHT

SIDE PANELS BY REPLACING

IMPROVED PARTSENERS WIN

INSIDE NOSE WHEEL WELL LEFT SIDE SHOWN 2178510

Page 9Open 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 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 85901-99RS for data about this change.

DESCRIPTIONCONFIGURATIONGROUP 747-400 airplanes, line numbers 1308 - 1419.-1 747-400F airplanes, line numbers 1315 - 1419.-2 Airplane Models:

747-400, 747-400F GroupVariable Number 1RF001 - RF006 2RL421 - RL436 2RL451 - RL456 2RL461 - RL462 2RL471 - RL481 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

Original Issue: November 30, 2012 747-53A2808 9 of 93

Page 10Open in PDF

GroupVariable Number 2RL491 - RL492 2RL501 - RL502 2RL511 - RL516 2RL521 - RL522 2RL531 - RL534 2RL551 2RL561 - RL568 2RL571 - RL572 2RL576 - RL577 2RL579 2RL581 - RL586 2RL671 - RL675 2RL681 - RL684 1RM030 1RM053 1RM401 - RM403 1RM426 1RM431 1RM441 - RM443 1RM445 2RM859 2RM863 2RM877 - RM880 2RM888 - RM890 2RM906

2. Spares Affected None.

B. Concurrent Requirements None.

Original Issue: November 30, 2012 747-53A2808 10 of 93 BOEING SERVICE BULLETIN 747-53A2808

ALERTALERT

Page 11Open in PDF

C. Reason Accomplishment of the modification in this service bulletin will ensure the structural integrity of the nose wheel well top and side panels. Widespread Fatigue Damage (WFD) in the nose wheel well top and side panels could result in a depressurization event with damage significant enough to adversely affect the structural integrity of the fuselage.

Boeing has received 16 reports of cracking in the nose wheel well top panel and side panel webs and/or stiffeners. One airplane lost pressurization due to cracking in a nose wheel well side panel. Boeing has determined that all the cracks were caused by fatigue.

Group 1:

Group 2:

For more information about WFD, refer to Boeing Service Letter 747-SL-53-088.

The modification given in this service bulletin terminates the repetitive inspections given in Service Bulletin 747-53A2465.

Boeing Service Related Problem (SRP) 747-SRP-53-0339 is related to this Service Bulletin.

Boeing Fleet Team Digest articles 747 FTD 53-04002 and 747 FTD 53-12006 are related to this service bulletin.

D. Description Open the nose landing gear doors, and jack the airplane. Remove the nose landing gear, nose landing gear doors, nose landing gear door actuator, passenger seats, floor covering, floor panels, and insulation as necessary to get access to the upper, left, and right hand webs in the nose wheel well.

Group 1:

Modify the nose wheel well top and side panels by replacing the existing webs, support beams, and stiffeners with improved parts.

Original Issue: November 30, 2012 747-53A2808 11 of 93 BOEING SERVICE BULLETIN 747-53A2808

ALERTALERT

Page 12Open in PDF

Group 2:

Install all parts removed for access at completion of the modification, and return the airplane to a serviceable condition.

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

Group 1:

Affected Maintenance Zones ZoneModel 113, 114747-400 Group 2:

Affected Maintenance Zones ZoneModel 113, 114747-400F E. Compliance Federal Aviation Administration (FAA) Airworthiness Directive AD 2006-22-15 is related to this service bulletin.

Table 1: Nose Wheel Well Modification Compliance TimeActionCondition Before 22,000 total flight cycles. (a) Do the nose wheel well modification (and detailed inspection of attaching structural elements) in accordance with paragraph

3.B., Work Instructions, PART 2.

All airplanes.

Before further flight.Contact Boeing for repair instructions, and do the repair.

Any crack found during detailed inspections of attaching structural elements while accomplishing the modification.

Original Issue: November 30, 2012 747-53A2808 12 of 93 BOEING SERVICE BULLETIN 747-53A2808

ALERTALERT

Pages 13–24 of 93