Commonwealth legislation

AD/B737/97 - Fwd Galley Service Door Lower Gate Hinge

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires operators of specified Boeing 737 aircraft to carry out detailed visual inspections for cracks in the forward galley service door lower gate hinge and, if desired, replace the hinge with an improved part to stop the inspection cycle. It applies to aircraft listed in Boeing Service Bulletin 737-52A1124 and matters because a hinge failure could allow parts to separate and be ingested by an engine or strike flight controls, so operators pay for inspections and replacements.

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AD/B737/97 - Fwd Galley Service Door Lower Gate Hinge

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Boeing 737 Series Aeroplanes

AD/B737/97 Fwd Galley Service Door Lower Gate Hinge 9/96

Applicability: Model 737 series aircraft, as listed in Boeing Service Bulletin 737-52A1124; on which the actions specified in Boeing Service Bulletin 737-52-1097, Revision 1, or Revision 2, have not been accomplished.

Requirement: Perform a detailed visual inspection to detect cracks of the lower gate hinge of the forward galley service door, in accordance with Boeing Alert Service Bulletin 737- 52A1124.

Note 1: Replacement of the lower gate hinge of the lower galley service door with an improved hinge, in accordance with Boeing Alert Service Bulletin 737-52A1124, constitutes terminating action for the requirements of this Directive.

Note 2: FAA AD 96-10-06 Amdt 39-9611 refers.

Compliance: Within 400 flight cycles after 15 August 1996, and thereafter at intervals not to exceed 4500 flight cycles; until replacement with an improved hinge.

Background: The FAA received reports of fatigue cracks in the lower gate hinge on the forward galley service door. If the hinge fails, the hinge and its associated parts and the emergency escape slide could separate from the aircraft and be ingested into the engine, or could strike and damage the flight control surfaces.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/B737/97 - Fwd Galley Service Door Lower Gate Hinge