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AD/B747/242 Amdt 1 - Trailing Edge Flap H-11 Bolts
Boeing 747 Series AeroplanesBoeing 747 Series Aeroplanes
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Boeing 747 Series Aeroplanes
| AD/B747/242 Amdt 1 | Trailing Edge Flap H-11 Bolts | 11/2009 DM |
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| Applicability: | All Model 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400, -400D,-400F, and 747SR series aircraft. |
|---|---|
| Requirement: | Action in accordance with the technical requirements of FAA AD 2001-03-10 Amdt 39-12114.Boeing Alert Service Bulletin (ASB) 747-27A2398 is approved by the FAA as an AMOC to the requirements of paragraphs (a) and (b) of FAA AD 2001-03-10 for the number 1, 2, 7 and 8 trailing edge flap positions. Boeing ASB 747-27A2398 is related to AD/B747/388.Note: Boeing Service Bulletin 747-27A2376 original issue, or later FAA approved revision, refers. |
| Compliance: | As specified in the Requirement document with a revised effective date of17 May 2001.The compliance time remains unchanged by this issue of the Directive. |
| This Amendment becomes effective on 2 September 2009. | |
| Background: | The FAA requires an inspection to determine whether H-11 steel bolts are installed as attach and support bolts at the trailing edge flap transmissions, and replacement of any H-11 steel bolt with an Inconel bolt. The required actions are intended to prevent loss of a flap transmission, which could reduce lateral controllability of the aircraft.Amendment 1 is issued to include a new paragraph to the Requirement section of this Directive, which introduces alternate means of compliance information affecting the outboard trailing edge flap positions. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
26 August 2009