# Boeing Alert Service Bulletin 737-27A1306: Revision 1 - Rights: © The Boeing Company. Filed by the FAA in regulations.gov docket FAA-2016-7270; AD 2017-18-16 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. - Document: [Boeing Alert Service Bulletin 737-27A1306](https://openairdocs.org/service-documents/boeing/737-27a1306.md) - Title as filed: SB 737-27A1306 Rev 1 - Pages: 5 - PDF: https://openairdocs.org/files/sha256/58/03/580317fa8c6ee82b5fe8b07a5bced08b5721a5d5dfb6d04be53cd5ac8d72e5fc - Page: https://openairdocs.org/service-documents/boeing/737-27a1306/file/580317fa8c6e ## Text Each page's text from the PDF; open the PDF at a page with #page=N. ### Page 1 Commercial Airplanes 737 Service Bulletin ALERT Number: 737-27A1306 Original Issue: September 10, 2015 Revision 1: December 14, 2016 ATA System: 2741 3151 7611 SUBJECT: FLIGHT CONTROLS - Horizontal Stabilizers - Stabilizer Trim Control System for 737-700 Airplanes with Blended Winglets - Change 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 © 2015 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 Unpublished Work.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: September 10, 2015 737-27A1306Revision 1: December 14, 2016 1 of 5 2.0 ### Page 2 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: September 10, 2015 737-27A1306Revision 1: December 14, 2016 2 of 5 BOEING SERVICE BULLETIN 737-27A1306 ALERTALERT BLANK PAGE ### Page 3 Commercial Airplanes 737 Service Bulletin ALERT Short Form RevisionNumber: 737-27A1306Original Issue: September 10, 2015 Revision 1: December 14, 2016 ATA System: 2741 3151 7611 SUBJECT: FLIGHT CONTROLS - Horizontal Stabilizers - Stabilizer Trim Control System for 737-700 Airplanes with Blended Winglets - Change Revision 1 is sent to change information. Only the changed information is described below. The Original Issue and Revision 1 are necessary to do the service bulletin. COMPLIANCE INFORMATION RELATED TO THIS REVISION 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. 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 update the Aviation Partners Boeing service bulletin reference in the Concurrent Requirements table. The data given in Information Notice 737-27A1306 IN 01 is included in this revision. REVISION HISTORY September 10, 2015Original Issue: December 14, 2016Revision 1: EFFECTIVITY 737-700/700C Airplanes. Refer to Paragraph 1.A.1., Airplanes, in the original issue for the list of affected airplanes. APPROVAL NOTE: The approval statement that follows is valid for 737-700C airplanes. This service bulletin was examined by the Federal Aviation Administration (FAA). The changes specified in this service bulletin comply with the applicable regulations and are FAA approved for all airplanes listed in the service bulletin effectivity. This service bulletin and its approval were based on the airplane in its original Boeing delivery configuration or as modified by other approved Boeing changes. NOTE: The approval statement that follows is valid for all affected airplanes, except 737-700C airplanes. Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: September 10, 2015 737-27A1306Revision 1: December 14, 2016 3 of 5 ### Page 4 This service bulletin was examined by the Federal Aviation Administration (FAA). The changes specified in this service bulletin comply with the applicable regulations and are FAA approved, as well as European Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/JAA approved airplanes listed in the service bulletin effectivity. This service bulletin and its approval were based on the airplane in its original Boeing delivery configuration or as modified by other approved Boeing changes. If an airplane has a non-Boeing modification or repair that affects a component or system also affected by this service bulletin, the operator is responsible for obtaining appropriate regulatory agency approval before incorporating this service bulletin. EXISTING INFORMATION The following is the existing information in the service bulletin: 1. In Paragraph 1.B., Concurrent Requirements, the table reads as follows: DescriptionService BulletinCompany Change the location of the stabilizer take-off warning limit switches and replace the control stand stabilizer trim lightplates. Also install new Flight Management Computer (FMC) Model/Engine Database (MEDB) software. AP737-27-002, Original IssueAviation Partners Boeing 2. In Paragraph 1.K.1., Publications, the table reads as follows: Chapter-SectionPublication Appendix 31737 FAA Approved Airplane Flight Manual 27-41, 31-51737-600/700/800/900 Aircraft Maintenance Manual 76-11737-600/700/800/900 Illustrated Parts Catalog 25-11Component Maintenance Manual 9.10, 9.20737 Flight Crew Operations Manual 1-06737 Weight and Balance Manual CHANGED INFORMATION The following is the changed information in the service bulletin: 1. In Paragraph 1.B., Concurrent Requirements, the table is changed as follows: Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: September 10, 2015 737-27A1306Revision 1: December 14, 2016 4 of 5 BOEING SERVICE BULLETIN 737-27A1306 ALERTALERT ### Page 5 DescriptionService BulletinCompany Change the location of the stabilizer take-off warning limit switches and replace the control stand stabilizer trim lightplates. Also install new Flight Management Computer (FMC) Model/Engine Database (MEDB) software. AP737-27-002, Original Issue, Revi- sion 1, Revision 2 or Revision 3. Aviation Partners Boeing 2. In Paragraph 1.K.1., Publications, the table is changed as follows: Chapter-SectionPublication Appendix 31737 FAA Approved Airplane Flight Manual 27-41, 31-11, 31-51737-600/700/800/900 Aircraft Maintenance Manual 76-11737-600/700/800/900 Illustrated Parts Catalog 25-11Component Maintenance Manual 9.10, 9.20737 Flight Crew Operations Manual 1-06737 Weight and Balance Manual Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: September 10, 2015 737-27A1306Revision 1: December 14, 2016 5 of 5 BOEING SERVICE BULLETIN 737-27A1306 ALERTALERT --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.