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Commercial Airplanes 747 Service Bulletin ALERT Number: 747-53A2880 Original Issue: December 03, 2014 ATA System: 5311 SUBJECT: FUSELAGE - Nose Section - Nose Cargo Door Portal C-3 Frame Upper Closure Fitting Inspection 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:
BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET Copyright © 2014 Boeing.
Unpublished Work. All Rights Reserved.
Treatment of this document and its content is governed by contract with Boeing. Rights to use this document are licensed on a per aircraft basis and such rights may not be transferable. For more information, contact The Boeing Company.
Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner, BBJ, DC-8, DC-9, DC-10, KC-10, KC-46, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8, Poseidon and Boeing liveries are all trademarks owned by The Boeing Company; and no trademark license is granted in connection with this document unless provided in writing by Boeing.
Original Issue: December 03, 2014 747-53A2880 1 of 38
4.0
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 03, 2014 747-53A2880 2 of 38 BOEING SERVICE BULLETIN 747-53A2880
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BLANK PAGE
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 1 F. Approval ............................................... 1 3 G. Manpower .............................................. 1 4 H. Weight and Balance Changes .................................... 1 4 I. Electrical Load Data ......................................... 1 4 J. References .............................................. 1 4
1. Existing Data: ......................................... 1 4
2. Data Supplied with this Service Bulletin: ........................... 1 5
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 1 5 K. Publications Affected ........................................ 1 5 L. Interchangeability and Intermixability of Parts ........................... 1 5 M. Software Accomplishment Summary ................................ 1 5
2. MATERIAL INFORMATION ........................................ 1 7 A. Material - Price and Availability ................................... 1 7 B. Industry Support Information .................................... 1 7 C. Parts Necessary for Each Airplane ................................. 1 7
1. Kits/Parts ............................................ 1 7
2. Parts and Materials Supplied by the Operator ........................ 1 8
3. Parts Modified and Reidentified ................................ 1 8
4. Parts Removed and Not Replaced .............................. 1 8 D. Parts Necessary to Change Spares ................................. 1 8 E. Special Tooling - Price and Availability ............................... 1 8 F. Special Tooling Necessary to do this Service Bulletin ....................... 1 8
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 1 9 A. GENERAL INFORMATION ..................................... 1 9 B. WORK INSTRUCTIONS ....................................... 2 0 FIGURE 1: INSPECTION FOR CRACKS IN UPPER CLOSURE FITTING AND CONNECTED STRUCTURE .................................................. 2 6 FIGURE 2: OVERSIZE FASTENER REPAIR ............................... 2 9 FIGURE 3: INSURANCE OVERSIZE ................................... 3 3 APPENDIX A: LOGIC DIAGRAM FOR PARAGRAPH 1.E., COMPLIANCE : TABLE 1: C-3 FRAME UPPER CLOSURE FITTING INSPECTION AND REPAIR ...................... 3 6 APPENDIX B: PART DEMAND INTENT ................................... 3 8 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 03, 2014 747-53A2880 3 of 38 BOEING SERVICE BULLETIN 747-53A2880
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Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 03, 2014 747-53A2880 4 of 38 BOEING SERVICE BULLETIN 747-53A2880
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Commercial Airplanes 747 Service Bulletin ALERT SummaryNumber: 747-53A2880Original Issue: December 03, 2014 ATA System: 5311 SUBJECT: FUSELAGE - Nose Section - Nose Cargo Door Portal C-3 Frame Upper Closure Fitting Inspection
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 gives instruction to inspect the upper closure fitting and connected structure at the nose cargo door portal C-3 frame for cracks. Cracks in the upper closure fitting that are not found and repaired can grow with continued use of the airplane and cause a sudden decompression and loss of structural integrity.
Boeing issued service bulletin 747-53A2495 in 2003 to give inspections for cracks in the C-3 frame upper closure fittings of 747-200F and 747-200C airplanes. Service bulletin 747-53A2495 was issued in response to crack reports which are described in that service bulletin. The upper closure fittings installed in the airplanes affected by this service bulletin were shot peened during production to increase fatigue resistance; however, subsequent analysis has shown that the increase in fatigue resistance may not be sufficient to ensure that upper closure fitting cracks will be found soon enough with existing inspections per the 747-400 MPD. While there have been no upper closure fitting cracks found on the airplanes affected by this service bulletin, the potential for cracks to initiate and grow in the upper closure fitting makes the inspections given in this service bulletin necessary. It is necessary to do these inspections to make sure that cracks in the upper closure fitting will be found and repaired before they can affect flight safety.
Boeing Service Related Problem (SRP) 747-SRP-53-0460 is related to this service bulletin.
The table below 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 ChangesNoWeight and Balance Change Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 03, 2014 747-53A2880 5 of 38
ReferenceAffectedPlanning Data Paragraph 1.I., Electrical Load DataNoElectrical Load Changed Paragraph 1.K., Publications AffectedNoPublications 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 Parts/Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION A Detailed inspection and a Surface High Frequency Eddy Current (HFEC) inspection for cracks in the upper closure fitting and connected structure at the nose cargo door portal C-3 frame are to be accomplished. If any crack is found with these inspections, a repair is to be done in accordance with this service bulletin. The repair alternatives given in this service bulletin are an oversize fastener repair, a time limited repair, and a part replacement repair. Repeat inspections are to be done within a compliance time that can be extended by zero-timing specified fastener holes common to the upper closure fitting.
EFFECTIVITY All 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.
Refer to Paragraph 1.E., Compliance.
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the inspection and repair procedures given in this service bulletin.
MANPOWER Refer to Paragraph 1.G., Manpower.
MATERIAL INFORMATION Operator Supplied Parts/Materials.
Refer to Paragraph 2.A., Material - Price and Availability.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 03, 2014 747-53A2880 6 of 38 BOEING SERVICE BULLETIN 747-53A2880
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BOEING SERVICE BULLETIN 747-53A2880
ALERT ALERT
DOUBLER STA 287 STA 270
LEFT SIDE SHOWN,
RIGHT SIDE OPPOSITE STRAP
DO A DETAILED AND A SURFACE HFEC INSPECTION OF THE C3 FRAME UPPER
CLOSURE FITTING AND REPAIR OR
REPLACE THE UPPER CLOSURE
FITTING IF ANY CRACK IS FOUND
• TYPICA CRACK C-3 FRAME UPPER CLOSURE FITTING 2365579 Original Issue: December 03, 2014 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished 747-53A2880 Work - See page 1 for details. 7 of 38
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 03, 2014 747-53A2880 8 of 38 BOEING SERVICE BULLETIN 747-53A2880
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Commercial Airplanes 747 Service Bulletin ALERT Number: 747-53A2880 Original Issue: December 03, 2014 ATA System: 5311 SUBJECT: FUSELAGE - Nose Section - Nose Cargo Door Portal C-3 Frame Upper Closure Fitting Inspection
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 applicable to 747-400F airplanes in one group. The Variable Numbers and Group Information for the applicable airplanes is given below.
DESCRIPTIONCONFIGURATIONGROUP All 747-400F Airplanes-1 Airplane Models:
747-400F GroupVariable Number 1RL401 - RL403 1RL411 - RL436 1RL451 - RL456 1RL461 - RL462 1RL471 - RL481 1RL491 - RL492 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 03, 2014 747-53A2880 9 of 38
GroupVariable Number 1RL501 - RL502 1RL511 - RL516 1RL521 - RL522 1RL531 - RL534 1RL551 1RL561 - RL568 1RL571 - RL572 1RL576 - RL577 1RL579 1RL581 - RL586 1RL651 - RL655 1RL671 - RL675 1RL681 - RL684 1RL751 - RL752 1RM851 - RM859 1RM861 - RM863 1RM871 - RM899 1RM901 - RM906 1RM911 1RR701 1RR721 - RR724 1RR746 - RR748 1RR851 - RR856 1RR861 - RR862 1RR951 - RR952
2. Spares Affected None.
B. Concurrent Requirements None.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 03, 2014 747-53A2880 10 of 38 BOEING SERVICE BULLETIN 747-53A2880
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C. Reason This service bulletin gives instruction to inspect the upper closure fitting and connected structure at the nose cargo door portal C-3 frame for cracks. Cracks in the upper closure fitting that are not found and repaired can grow with continued use of the airplane and cause a sudden decompression and loss of structural integrity.
Boeing issued service bulletin 747-53A2495 in 2003 to give inspections for cracks in the C-3 frame upper closure fittings of 747-200F and 747-200C airplanes. Service bulletin 747-53A2495 was issued in response to crack reports which are described in that service bulletin. The upper closure fittings installed in the airplanes affected by this service bulletin were shot peened during production to increase fatigue resistance; however, subsequent analysis has shown that the increase in fatigue resistance may not be sufficient to ensure that upper closure fitting cracks will be found soon enough with existing inspections per the 747-400 MPD. While there have been no upper closure fitting cracks found on the airplanes affected by this service bulletin, the potential for cracks to initiate and grow in the upper closure fitting makes the inspections given in this service bulletin necessary. It is necessary to do these inspections to make sure that cracks in the upper closure fitting will be found and repaired before they can affect flight safety.
Boeing Service Related Problem (SRP) 747-SRP-53-0460 is related to this service bulletin.
D. Description A Detailed inspection and a Surface High Frequency Eddy Current (HFEC) inspection for cracks in the upper closure fitting and connected structure at the nose cargo door portal C-3 frame are to be accomplished. If any crack is found with these inspections, a repair is to be done in accordance with this service bulletin. The repair alternatives given in this service bulletin are an oversize fastener repair, a time limited repair, and a part replacement repair. Repeat inspections are to be done within a compliance time that can be extended by zero-timing specified fastener holes common to the upper closure fitting.
The work in this service bulletin is done in the maintenance zone(s) given below.
Affected Maintenance Zones ZoneModel 221, 222747-400F E. Compliance The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin mandatory.
A logic diagram showing compliance tasks and compliance times is included as an aid in Appendix A.
Do the required actions on both sides of the airplane in accordance with Paragraph 3. Accomplishment Instructions.
When more than one OPTION is given for a CONDITION, do only one of the OPTION numbers. When more than one ACTION is given for a CONDITION number or an OPTION number, do all of the ACTION numbers for that CONDITION number or OPTION number.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 03, 2014 747-53A2880 11 of 38 BOEING SERVICE BULLETIN 747-53A2880
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Table 1: C-3 Frame Upper Closure Fitting Inspection and Repair Repeat Interval (Not to Exceed) Compliance TimeActionCondition -Before 28,000 total flight cycles, or 2,000 flight cycles after the original issue date of this service bulletin, whichever occurs later.
Do PART 1: INSPEC-
TION FOR CRACKS IN
UPPER CLOSURE FIT-
TING AND CONNECTED STRUCTURE. (g) All airplanes.
3,000 flight cycles.Within 3,000 flight cycles after doing the inspection.
OPTION 1: Repeat PART
1. (g) CONDITION 1: NO
CRACK FOUND -Before further flight.
OPTION 2: Do PART 3:
INSURANCE OVERSIZE.
(b) (e) (f) 3,000 flight cycles.Within 20,000 flight cycles after doing PART 3.
Repeat PART 1. (g)CONDITION 1.1: NO
CRACK FOUND AND PART 3 ACCOMPLISHED -Before further flight.
Do a repair in accordance with applicable repair instruction given in this service bulletin. (a) (b) CONDITION 2: ANY
CRACK FOUND -Before further flight.
Do PART 8: SPECIAL INSTRUCTION REPAIR.
(d) CONDITION 2.1: REMAIN- ING CRACK IN STRAP (c) 3,000 flight cycles.Within 3,000 flight cycles after doing PART 2 or PART
6.
Repeat PART 1. (g)CONDITION 2.2: ONLY PART 2 AND/OR PART 6
ACCOMPLISHED 3,000 flight cycles.Within 20,000 flight cycles after doing PART 2 or PART 6 and doing PART 3.
Repeat PART 1. (g)CONDITION 2.3: PART 2 AND/OR PART 6 ACCOM- PLISHED PLUS PART 3
ACCOMPLISHED -Within 10,000 flight cycles after doing PART 4.
Do PART 5: REPLACE
UPPER CLOSURE FIT- TING.
CONDITION 2.4: PART 4
ACCOMPLISHED 3,000 flight cycles.Within 20,000 flight cycles after doing PART 5.
Repeat PART 1. (g)CONDITION 2.5: PART 5
ACCOMPLISHED Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 03, 2014 747-53A2880 12 of 38 BOEING SERVICE BULLETIN 747-53A2880