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DULLUSULE A 10/5/2011 11-00269 Commercial D SOLING Airplanes 717 Service Bulletin — ALERT Number: 717-53A0034 Original Issue: October 05, 2011 ATA System: 5310 SUBJECT: FUSELAGE - Main Frame - Inspect Overwing Frames for Cracks 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.
ECCN: 9E991
BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2011 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter.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Original Issue: October 05, 2011 717-53A0034 Copyright Unpublished Work. - See page 1 for details. BOEING PROPRIETARY - 1 of 34
3.0
BOEING SERVICE BULLETIN 717-53A0034
ALERT ALERT
BLANK PAGE Original Issue: October 05, 2011 717-53A0034
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 2 of 34
BOEING SERVICE BULLETIN 717-53A0034
ALERT ALERT Table of Contents summary PLANNING INFORMATION 9 Effectivity
1. Airplanes .
2. Spares Affected 9 B Concurrent Requirements .
Reason 10 D. Description 10 Compliance 11 F Approval 13 Manpower 13 H. Weight and Balance Changes 15 I. Electrical Load Data 15 J. References 15
1. Existing Data . 15
2. Data supplied with this Service Bulletin 15
3. Installation Drawings Used in the Preparation of this Service Bulletin 16 K. Publications Affected 16 Interchangeability and Intermixability of Parts 16
2. MATERIAL INFORMATION 17 A. Material - Price and Availability. 17 B. Industry Support Information 17 C. Parts Necessary For Each Airplane 17
1. Kits/Parts 17
2. Parts and Materials Supplied by the Operator 20
3. Parts Modified and Reidentified. 21
4. Parts Removed and Not Replaced. 21 D. Parts Necessary to Change Spares. 21 E Special Tooling - Price and Availability. 21 F. Special Tooling Necessary to do this Service Bulletin. 21
3. ACCOMPLISHMENT INSTRUCTIONS 23 A. GENERAL INFORMATION 23
B. WORK INSTRUCTIONS24
FIGURE 1: DETAILED VISUAL INSPECTION - OVERWING FRAMES. 28 FIGURE 2: EDDY CURRENT, HIGH FREQUENCY INSPECTION - OVERWING FRAMES. 30 FIGURE 3: BLEND-OUT REPAIR - FRAME TAB UPPER RADIUS. 32 Original Issue: October 05, 2011 717-53A0034
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 3 of 34
BOEING SERVICE BULLETIN 717-53A0034
ALERT ALERT
BLANK PAGE Original Issue: October 05, 2011 717-53A0034
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 4 of 34
Commercial @ GOEING Airplanes 717 Service Bulletin
- ALERT Number: 717-53A0034 Summary Original Issue: October 05, 2011 ATA System: 5310 SUBJECT: FUSELAGE - Main Frame - Inspect Overwing Frames for Cracks
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 There have been over forty reports of overwing frames cracking on MD-80 airplanes having logged between 19,876 and 41,166 flight cycles. There is one report of a cracked overwing frame on an MD-90 airplane, and one report of a crack on a 717 airplane. The 717 airplane had 18,235 flight-hours and 14,542 landing cycles Due to similarity in frame design, the 717 airplanes are susceptible to cracks. The cracks, which originate in the upper radius of the frame inboard tab just below the floor, were caused by fatigue. Boeing has determined that 717 overwing frames at Stations Y=674.000. Y=696.000 and Y=715.000 are also susceptible to this type of failure. All the noted frames are a part of 717 Principal Structural Element (PSE) 53.30.02.11. Inspection of the overwing frames at Stations Y=674.000, Y=696.000 and Y=715.000, left and right sides will determine if cracks exist. If not corrected, an undetected crack may sever the frame, which may increase the loading of adjacent frames and result in damage to adjacent structure and extensive repair, or ultimately could lead to the loss of overall structural integrity of the airplane.
ACTION This service bulletin provides instructions to do a general visual inspection and a high frequency eddy current inspection of the overwing frames at Stations Y=674.000, Y=696.000 and Y=715.000, left and right sides. The purpose of these inspections is to detect fatigue cracks in the upper radius of the frame tab. Based on inspection results, do as tollows:
Condition 1 (No Crack Found on Any Frame) Does repetitive general visual inspections and high frequency eddy current inspections of the overwing frames for cracks and does as follows:
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BOEING SERVICE BULLETIN 717-53A0034
ALERT ALERT Condition 1A (No Crack Found on Any Frame)
a. Does repetitive general visual inspections and high frequency eddy current inspections of the overwing frames for cracks.
Condition 1B (Crack Found on Any Frame)
a. Establishes the length of the crack and does the work of Condition 2 or Condition 3.
Condition 2 (Crack in Any Frame is Less Than 0.125 Inch in Length)
1. Does a blend-out repair of the crack.
2. Does repetitive general visual inspections and high frequency eddy current inspections of the repaired overwing frame for cracks and does as follows:
Condition 2A (No Crack Found on Any Repaired Frame)
a. Does repetitive general visual inspections and high frequency eddy current inspections of the repaired overwing frame for cracks.
Condition 2B (Any Crack Found on Any Repaired Frame)
a. Does the work of Condition 3.
Condition 3 (Crack in Any Frame is Equal To or Greater Than 0.125 Inch in Length)
1. Replaces the cracked overwing frame.
2. Does repetitive general visual inspections and high frequency eddy current inspections of the replaced overwing frame for cracks and does as follows:
Condition 3A (No Crack Found on Any Replaced Frame)
a. Does repetitive general visual inspections and high frequency eddy current inspections of the replaced overwing frame for cracks.
Condition 3B (Crack Found on Any Replaced Frame)
a. Establishes the length of the crack and does the work of Condition 2 or Condition 3.
EFFECTIVITY All 717-200 Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplane(s).
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.
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BOEING SERVICE BULLETIN 717-53A0034
ALERT ALERT Refer to Paragraph 1.E., Compliance.
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the inspection and/or repair procedures 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.
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BOEING SERVICE BULLETIN 717-53A0034
ALERT ALERT
- STA Y=674.000
- STA Y=696.000
- STA Y =715.000 not 00000000000000000100000
INSPECT OVERWING
FRAMES FOR CRACKS 2087528 Original Issue: October 05, 2011 717-53A0034
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Commercial RODEINE Airplanes 717 Service Bulletin
- ALERT Number: 717-53A0034 Original Issue: October 05, 2011 ATA System: 5310 SUBJECT: FUSELAGE - Main Frame - Inspect Overwing Frames for Cracks
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
GROUP CONFIGURATION DESCRIPTION 717-200 Airplanes Airplane Models:
717-200 Fuselage Num- Group ber 5002 - 5156
2. Spares Affected None.
B. Concurrent Requirements None.
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BOEING SERVICE BULLETIN 717-53A0034
ALERT ALERT C. Reason There have been over forty reports of overwing frames cracking on MD-80 airplanes having logged between 19,876 and 41,166 flight cycles. There is one report of a cracked overwing frame on an MD-90 airplane: and one report of a crack on a 717 airplane. The 717 airplane had 18,235 flight-hours and 14,542 landing cycles. Due to similarity in frame design, the 717 airplanes are susceptible to cracks.
The cracks, which originate in the upper radius of the frame inboard tab just below the floor, were caused by fatigue. Boeing has determined that 717 overwing frames at Stations Y=674.000, Y=696.000 and Y=715.000 are also susceptible to this type of failure. All the noted frames are a part of 717 Principal Structural Element (PSE) 53.30.02.11. Inspection of the overwing frames at Stations Y=674.000, Y=696.000 and Y=715.000, left and right sides will determine if cracks exist. If not corrected, an undetected crack may sever the frame, which may increase the loading of adjacent frames and result in damage to adjacent structure and extensive repair, or ultimately could lead to the loss of overall structural integrity of the airplane.
D. Description This service bulletin provides instructions to do a general visual inspection and a high frequency eddy current inspection of the overwing frames at Stations Y=674.000, Y=696.000 and Y=715.000, left and right sides. The purpose of these inspections is to detect fatigue cracks in the upper radius of the frame tab. Based on inspection results, do as follows:
Condition 1 (No Crack Found on Any Frame)
1. Does repetitive general visual inspections and high frequency eddy current inspections of the overwing frames for cracks and does as follows:
Condition 1A (No Crack Found on Any Frame)
a. Does repetitive general visual inspections and high frequency eddy current inspections of the overwing frames for cracks.
Condition 1B (Crack Found on Any Frame)
a. Establishes the length of the crack and does the work of Condition 2 or Condition 3.
Condition 2 (Crack in Any Frame is Less Than 0.125 Inch in Length)
1. Does a blend-out repair of the crack.
2. Does repetitive general visual inspections and high frequency eddy current inspections of the repaired overwing frame for cracks and does as follows:
Condition 2A (No Crack Found on Any Repaired Frame)
a. Does repetitive general visual inspections and high frequency eddy current inspections of the repaired overwing frame for cracks.
Condition 2B (Crack Found on Any Repaired Frame)
a. Does the work of Condition 3.
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BOEING SERVICE BULLETIN 717-53A0034
ALERT ALERT Condition 3 (Crack in Any Frame is Equal To or Greater Than 0.125 Inch in Length)
1. Replaces the cracked overwing frame.
2. Does repetitive general visual inspections and high frequency eddy current inspections of the replaced overwing frame for cracks and does as follows:
Condition 3A (No Crack Found on Any Replaced Frame)
a. Does repetitive general visual inspections and high frequency eddy current inspections of the replaced overwing frame for cracks.
Condition 3B (Any Crack Found on Any Replaced Frame)
a. Establishes the length of the crack and does the work of Condition 2 or Condition 3.
The work in this service bulletin is done in the maintenance zone(s) given below.
Affected Maintenance Zones Model Zone 717-200 151, 161 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 Accomplish the required action(s), based on the applicable condition(s), in Table 1, in accordance with Paragraph 3. Accomplishment Instructions.
Table 1: Inspect Left and Right Side Overwing Frames for Cracks from Station 674 to 715 Condition Action Compliance Time (Whichever Occurs Repeat Interval Later ) (Not to Exceed) All Airplanes Do a general visual inspec- Before the accumu- Within 8275 flight tion and a high frequency lation of 20,000 to- cycles after the eddy current inspection of tal flight cycles. original issue date the overwing frames at the on this service bultab upper radius for cracks. letin.
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BOEING SERVICE BULLETIN 717-53A0034
ALERT ALERT Table 1: Inspect Left and Right Side Overwing Frames for Cracks from Station 674 to 715 Condition Action Compliance Time (Whichever Occurs Repeat Interval [ Later ) (Not to Exceed) Condition 1 Do repeat general visual in- 9,300 flight cycles.
(No Crack Found spection and high frequency on Any Frame) eddy current inspection.
AND Do the action specified by Condition 1A or 1B.
Condition 1A Do repeat general visual in- 9,300 flight cycles.
(No Crack Found spection and high frequency on Any Frame) eddy current inspection.
Condition 1B Establish the length of the Before further (Crack Found on crack and do the work | flight.
Any Frame) specified by Condition 2 or Condition 3.
Condition 2 Repair the cracked over- Before further (Crack in Any wing frame. flight.
Frame is Less AND Than 0.125 Inch in Length) Do a general visual inspec- | 9,300 flight cycles 9,300 flight cycles.
tion and high frequency ed- after repair.
dy current inspection of the repaired overwing frame.
AND Do the action specified by Condition 2A or 2B.
Condition 2A Do repeat general visual in- 9,300 flight cycles.
(No Crack Found spection and high frequency on Any Repaired eddy current inspection of Frame) the repaired overwing frame.
Condition 2B Do the work specified by Before further (Crack Found on Condition 3. | flight.
Any Repaired Frame) Original Issue: October 05, 2011 717-53A0034
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