Boeing 737 Series Aeroplanes
Boeing 737 Series Aeroplanes
Boeing 737 Series Aeroplanes
| AD/B737/269 | Engine Mount Cone Bolt Nuts | 13/2005 |
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| Applicability: | All Model 737-100, -200, and -200C series aircraft. |
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| Requirement: | Inspect the engine mount cone bolt nuts and remove from service any nut that is not identified in FAA AD 89-21-02 Amdt 39-6342; or,Inspect the engine mount cone bolt nuts to establish conformity to the cone bolt nuts identified and described in Boeing Service Letter (SL) 727-SL-71-014-C.Note: FAA Letter, reference 97-120S-490 (FAA Alternate Method of Compliance for FAA AD 89-21-02), and SL 727-SL-71-014-C refer. |
| Compliance: | Before each cone bolt nut installation, effective 22 December 2005. |
| This Airworthiness Directive becomes effective on 22 December 2005. | |
| Background: | The FAA determined that bogus nuts have been introduced and sold to aircraft repair stations and parts distributors world-wide.This Directive also introduces an alternate method of compliance to FAA AD89-21-02, in order to use authentic cone bolt nuts manufactured by Standard Pressed Steel (SPS) Technologies that do not specifically conform to the part number description in AD 89-21-02. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
11 November 2005