Commonwealth legislation

AD/B747/66 Amdt 2 - Lower Lobe Cargo Door Locking System

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legislative instrument

Plain English Summary

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This AD makes compliance with a specific FAA airworthiness directive (FAA AD 90-09-06/Amdt 39-6581) mandatory for Boeing 747 aeroplanes line number 001 and subsequent, requiring operators and maintenance organisations to carry out the referenced Boeing service bulletin work and inspections. It responds to incidents of lower-lobe forward cargo door lock damage to prevent in‑flight openings, and will impose maintenance, parts and downtime costs on affected operators to meet the FAA-mandated fixes.

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AD/B747/66 Amdt 2 - Lower Lobe Cargo Door Locking System

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Boeing 747 Series Aeroplanes

AD/B747/66

Amdt 2

Lower Lobe Cargo Door Locking System 3/91

Applicability: Model 747 series line number 001 and subsequent.

Requirement: Unless already accomplished; action in accordance with the technical requirements of FAA AD 90-09-06 Amdt 39-6581.

Note: Boeing SB’s 747-52A2206 and 747-52A2209 refer.

Compliance: As specified in the Requirement Document.

Background: A lower lobe forward cargo door partially opened in flight due to damaged lock sectors. Amendment 1 was raised in response to the FAA decision, following a second occurrence, to accelerate the compliance time previously required by AD 88- 12-04, and for installation of certain modifications as well as additional inspections and tests in the interim.

This amendment is raised to reflect an additional requirement of FAA Amdt 39-6581, AD 90-09-02; which supersedes Amdt 39-6166, AD 89-05-54.

Source text

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

1 AD/B747/66 Amdt 2 - Lower Lobe Cargo Door Locking System