Commonwealth legislation

AD/B747/25 - Wing Leading Edge Flap System - Modification

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This AD requires all Boeing 747 operators/owners to modify the wing leading‑edge flap electrical system to mitigate an electrical fault that can cause unscheduled flap deployment. Compliance is mandatory by following FAA AD 80‑19‑05 (the named requirement document); the instrument delegates technical details, timing and methods to that FAA AD. Operators bear the cost and must schedule the work.

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AD/B747/25 - Wing Leading Edge Flap System - Modification

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Boeing 747 Series Aeroplanes

AD/B747/25 Wing Leading Edge Flap System - Modification 1/81

Applicability: All models 747.

Document: 1. FAA AD 80-19-05, Amdt. 39-3906; or

Boeing SB No. 747-27-2204.

Compliance: As per requirement document No. 1.

Background: Investigation has revealed that a single electrical fault in the leading edge flap circuits could cause an unscheduled deployment of the flaps.

Source text

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