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 = 'bcfa4de245a3ab2aaa763f4a0ccbb47983076558877be9e54ecddf4a7ded835f' 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 = 'bcfa4de245a3ab2aaa763f4a0ccbb47983076558877be9e54ecddf4a7ded835f' 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.
Commercial Airplanes MD90 Service Bulletin ALERT Number: MD90-55A014 Original Issue: June 24, 2010 ATA System: 5531 SUBJECT: STABILIZERS - Vertical Stabilizer - Inspect/Repair Fixed Leading Edge Skin and Front Spar Cap at Station Zfs=52.267 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BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2010 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter.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.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 24, 2010 MD90-55A014 1 of 53
2.0
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 24, 2010 MD90-55A014 2 of 53 BOEING SERVICE BULLETIN MD90-55A014
ALERTALERT
BLANK PAGE
Table of Contents
Summary5
1. PLANNING INFORMATION9
A. Effectivity9
1. Airplanes9
2. Spares Affected ........................................ 1 1 B. Concurrent Requirements ...................................... 1 1 C. Reason ................................................ 1 1 D. Description .............................................. 1 1 E. Compliance .............................................. 1 4 F. Approval ............................................... 2 3 G. Manpower .............................................. 2 3 H. Weight and Balance Changes .................................... 2 5 I. Electrical Load Data ......................................... 2 5 J. References .............................................. 2 5
1. Existing Data .......................................... 2 5
2. Data supplied with this Service Bulletin ............................ 2 5
3. Installation Drawings Used in the Preparation of this Service Bulletin ............ 2 5 K. Publications Affected ........................................ 2 5 L. Interchangeability and Intermixability of Parts ........................... 2 6
2. MATERIAL INFORMATION ........................................ 2 7 A. Material - Price and Availability ................................... 2 7 B. Industry Support Information .................................... 2 7 C. Parts Necessary For Each Airplane ................................. 2 7
1. Kits/Parts ............................................ 2 7
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 7 E. Special Tooling - Price and Availability ............................... 2 7 F. Special Tooling Necessary to do this Service Bulletin ....................... 2 7
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 2 9 A. GENERAL INFORMATION ..................................... 2 9 B. WORK INSTRUCTIONS ....................................... 3 0 APPENDIX A: FLOWCHART - INITIAL INSPECTION AND REPETITIVE INSPECTION .......... 4 1 APPENDIX B: INSPECTION OF VERTICAL STABILIZER FRONT SPAR CAP AT STATION ZFS=52.267 . 44
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 24, 2010 MD90-55A014 3 of 53 BOEING SERVICE BULLETIN MD90-55A014
ALERTALERT
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 24, 2010 MD90-55A014 4 of 53 BOEING SERVICE BULLETIN MD90-55A014
ALERTALERT
BLANK PAGE
Commercial Airplanes MD90 Service Bulletin ALERT SummaryNumber: MD90-55A014Original Issue: June 24, 2010 ATA System: 5531 SUBJECT: STABILIZERS - Vertical Stabilizer - Inspect/Repair Fixed Leading Edge Skin and Front Spar Cap at Station Zfs=52.267
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 One operator reported finding elongated fastener holes at the leading edge of the vertical stabilizer at Station Zfs=52.267. The affected MD-90 airplane had accrued 15,555 flight-hours and 14,310 landing cycles when the elongated fastener holes were found during normal maintenance. Furthermore, two MD-80 operators reported finding a cracked vertical stabilizer skin at Station Zfs=52.267. Subsequent inspection on both affected MD-80 airplanes, revealed a severed front spar cap and a cracked front spar web. The affected MD-80 airplanes had accrued between 39,749 through 56,212 flight-hours and 32,176 through 44,001 landing cycles when the cracks/anomalies were found. Cracks were also found on several other MD-80 airplanes, in the vertical stabilizer front spar cap bolt holes. The MD-90 vertical stabilizer is similar in design and loading as that of the MD-80 vertical stabilizer. Based on service reports and findings, Boeing correlated fastener damage and/or elongated fastener holes at the leading edge of the vertical stabilizer with structural cracks. Boeing investigation determined that high loading occurrences, such as, but not limited to, in-flight turbulence can adversely impact the fasteners and loading at the leading edge of the vertical stabilizer. Inspection will determine condition of the vertical stabilizer skin. Incorporation of the leading edge repair will minimize the possibility of crack growth. If not corrected, cracks in the vertical stabilizer leading edge and front spar cap may result in the structure unable to support limit load, and may lead to the loss of the vertical stabilizer.
ACTION Refer to Paragraph 1.D., Description.
EFFECTIVITY MD-90-30 Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes.
COMPLIANCE Refer to Paragraph 1.E., Compliance.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 24, 2010 MD90-55A014 5 of 53
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 Operator Supplied Parts/Materials.
Refer to Paragraph 2.A., Material - Price and Availability
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 24, 2010 MD90-55A014 6 of 53 BOEING SERVICE BULLETIN MD90-55A014
ALERTALERT
BOEING SERVICE BULLETIN MD90-55A014
ALERT ALERT
INSPECT/REPAIR FIXED LEADING
EDGE SKIN AND FRONT SPAR CAP AT STATION ZFS=52.267 1955969 Original Issue: June 24, 2010 MD90-55A014
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 7 of 53
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 24, 2010 MD90-55A014 8 of 53 BOEING SERVICE BULLETIN MD90-55A014
ALERTALERT
BLANK PAGE
Commercial Airplanes MD90 Service Bulletin ALERT Number: MD90-55A014 Original Issue: June 24, 2010 ATA System: 5531 SUBJECT: STABILIZERS - Vertical Stabilizer - Inspect/Repair Fixed Leading Edge Skin and Front Spar Cap at Station Zfs=52.267
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 This service bulletin is for the airplanes shown below.
DESCRIPTIONCONFIGURATIONGROUP MD-90-30 Airplanes-1 Airplane Models:
MD-90-30 GroupFuselage Number 12094 - 2100 12115 12117 12120 12122 - 2123 12125 - 2126 12129 12131
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 24, 2010 MD90-55A014 9 of 53
GroupFuselage Number 12133 12136 12138 12140 - 2144 12146 - 2147 12149 - 2150 12153 - 2154 12156 - 2159 12161 - 2166 12169 - 2171 12173 12175 12177 12179 12181 12184 12186 12190 - 2191 12193 - 2195 12197 - 2198 12200 12202 - 2203 12205 12207 12209 - 2213 12215 - 2217 12219 - 2233 12235 - 2237 12240 12243 12245 12248
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 24, 2010 MD90-55A014 10 of 53 BOEING SERVICE BULLETIN MD90-55A014
ALERTALERT
GroupFuselage Number 12250 - 2251 12253 12255 - 2263 12288 - 2290 14001 - 4002
2. Spares Affected None.
B. Concurrent Requirements None.
C. Reason One operator reported finding elongated fastener holes at the leading edge of the vertical stabilizer at Station Zfs=52.267. The affected MD-90 airplane had accrued 15,555 flight-hours and 14,310 landing cycles when the elongated fastener holes were found during normal maintenance. Furthermore, two MD-80 operators reported finding a cracked vertical stabilizer skin at Station Zfs=52.267. Subsequent inspection on both affected MD-80 airplanes, revealed a severed front spar cap and a cracked front spar web. The affected MD-80 airplanes had accrued between 39,749 through 56,212 flight-hours and 32,176 through 44,001 landing cycles when the cracks/anomalies were found. Cracks were also found on several other MD-80 airplanes, in the vertical stabilizer front spar cap bolt holes. The MD-90 vertical stabilizer is similar in design and loading as that of the MD-80 vertical stabilizer. Based on service reports and findings, Boeing correlated fastener damage and/or elongated fastener holes at the leading edge of the vertical stabilizer with structural cracks. Boeing investigation determined that high loading occurrences, such as, but not limited to, in-flight turbulence can adversely impact the fasteners and loading at the leading edge of the vertical stabilizer. Inspection will determine condition of the vertical stabilizer skin. Incorporation of the leading edge repair will minimize the possibility of crack growth. If not corrected, cracks in the vertical stabilizer leading edge and front spar cap may result in the structure unable to support limit load, and may lead to the loss of the vertical stabilizer.
D. Description This service bulletin provides instructions to do an initial inspection and repetitive inspections of the vertical stabilizer leading edge structure at the splice at Station Zfs=52.267, and the vertical stabilizer front spar cap forward flanges and either the aft flanges or side skins, as follows:
NOTE: Refer to APPENDIX A: FLOWCHART - INITIAL INSPECTION AND REPETITIVE INSPECTION, as a supplement to Paragraph 1.D., Description.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 24, 2010 MD90-55A014 11 of 53 BOEING SERVICE BULLETIN MD90-55A014
ALERTALERT
PART A - INITIAL INSPECTION:
1. Removes two rows of fasteners above the splice and two rows of fasteners below the splice at Station Zfs=52.267.
2. Does a detailed inspection for "distress" in, and "existing repairs" to, the vertical stabilizer leading edge structure at the splice at Station Zfs=52.267.
NOTE: "Distress" is defined as deformed holes, elongated holes, oversized holes or cracks in the leading edge skin and splice.
"Existing Repairs" are bushings, washers or reinforcing repairs to the leading edge.
3. Based on inspection results, does as follows:
CONDITION 1 (Leading Edge is Not Distressed and No Existing Repair Found)
a. Does an inspection for cracking on the left and right vertical stabilizer front spar cap forward flanges and either the aft flanges or side skins at Station Zfs=52.267.
b. Based on inspection results, does as follows:
CONDITION 1A (No Crack Found)
(1) Puts the airplane back to a serviceable condition.
CONDITION 1B (Any Crack Found)
(1) Does an evaluation/verification to confirm all crack indications.
(2) Contacts Boeing for repair of all cracking and does the repair in accordance with Boeing's instructions.
(3) Puts the airplane back to a serviceable condition.
CONDITION 2 (Leading Edge is Distressed)
a. Does an inspection for cracking on the left and right vertical stabilizer front spar cap forward flanges and either the aft flanges or side skins at Station Zfs=52.267.
b. Based on inspection results, does as follows:
CONDITION 2A (No Crack Found)
(1) Does leading edge repair.
(2) Puts the airplane back to a serviceable condition.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 24, 2010 MD90-55A014 12 of 53 BOEING SERVICE BULLETIN MD90-55A014