Boeing 737 Series Aeroplanes
Boeing 737 Series Aeroplanes
Boeing 737 Series Aeroplanes
| AD/B737/271 | Aileron Control Transfer Mechanism | 1/2006 |
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| Applicability: | Model 737-100 and -200 series aeroplanes; as listed in Boeing 737 Service Bulletin 27-1033 dated 13 February 1970. |
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| Requirement: | 1. Unless previously accomplished:Replace the aileron control transfer mechanism, part number (P/N) 65-54200-4 or -5, with a new modified mechanism in accordance with Procedure 1 of the Accomplishment Instructions of Boeing 737 Service Bulletin 27-1033; OrRework the existing aileron control transfer mechanism, P/N 65-54200-4 or -5, in accordance with Procedure II of the Accomplishment Instructions of Boeing 737 Service Bulletin 27-1033.2. Do not install an aileron control transfer mechanism having P/N 65-54200-4 or -5 unless it has been reworked in accordance with Procedure II of the Accomplishment Instructions of Boeing 737 Service Bulletin 27-1033.Note: FAA AD 97-01-10 Amendment 39-9881 refers. |
| Compliance: | 1. Within 30 days after the effective date of this AD.2. After the effective date of this AD. |
| This Airworthiness Directive becomes effective on 19 January 2006. | |
| Background: | This AD is issued to prevent an unexpected, significant control upset due to mechanical interference within the lateral control system transfer mechanism. This could result in reduced travel of a control wheel and above normal control wheel forces during a jam override. |
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James Coyne
Delegate of the Civil Aviation Safety Authority
29 November 2005