Commonwealth legislation

AD/B727/117 - Inboard T/E Flaps Inboard Track

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

6/10 complexity

This airworthiness directive requires operators of all Boeing 727 aeroplanes to inspect and, where necessary, repair or modify the inboard trailing‑edge flap inboard tracks by following FAA AD 90‑07‑05 (Parts A–D) and the referenced Boeing service bulletins. Compliance is tied to specific flight‑cycle and calendar thresholds, and completing Part D ends the inspection obligation. The measure addresses cracking and corrosion of flap tracks that could lead to flap separation.

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AD/B727/117 - Inboard T/E Flaps Inboard Track

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Boeing 727 Series Aeroplanes

AD/B727/117 Inboard T/E Flaps Inboard Track 8/90

Applicability: All models 727.

Requirement: Action in accordance with FAA AD 90-07-05 Amendment 39-6548, Parts A, B, C and D.

Note: Boeing SB 727-57-0178 Rev 3, and Boeing SB 727-57-117 Rev 5 refer.

Compliance: Unless previously accomplished:

For Part A: Prior to exceeding 1000 flight cycles after 9 August 1990 or prior to 28 February 1991, whichever occurs first, and thereafter in accordance with the Requirement Document.

For Part B: Prior to (1) or (2) below, whichever occurs later, and thereafter in accordance with the Requirement document.

(1) Prior to exceeding 9000 flight cycles or 6 years since modification, whichever occurs first; or

(2) Prior to exceeding 1000 flight cycles after 9 August 1990, or prior to 28 February 1991, whichever occurs first.

For Part C: Prior to (1) or (2) below whichever occurs later, and thereafter in accordance with the Requirement document.

(1) Prior to exceeding 12000 flight cycles or 8 years since repair whichever occurs first, or

(2) Prior to exceeding 1000 flight cycles after 9 August 1990, or prior to 28 February 1991, whichever occurs first.

For Part D: Compliance in accordance with the Requirement document constitutes terminating action for the inspection requirements of the Directive.

Background: Country of origin AD. Cracking and/or corrosion of the flap tracks has occurred and if not corrected could lead to separation of a flap.

Source text

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

1 AD/B727/117 - Inboard T/E Flaps Inboard Track