Commonwealth legislation

AD/CF6/34 - Fan Reverser Centre Drive Unit

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This instrument requires owners/operators of aircraft with General Electric CF6-80C2 engines to comply with FAA Airworthiness Directive 95-10-11 (Amdt 39-9228), revised effective 12 October 1995, after a CDU brake-shaft manufacturing error could let the translating cowl move toward deploy in flight. It affects operators of CF6-80C2 installations, directs them to the FAA AD (and related Martin Marietta service bulletin), and imposes inspection/repair costs and downtime on operators or their maintenance/insurer arrangements.

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AD/CF6/34 - Fan Reverser Centre Drive Unit

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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General Electric Turbine Engines - CF6 Series

AD/CF6/34 Fan Reverser Centre Drive Unit 11/95

Applicability: CF6-80C2 series engine installations.

Requirement: Action in accordance with the technical requirements of FAA AD 95-10-11 Amdt 39- 9228.

Note: Martin Marietta CF6-80C2 SB No. 78-1002 Revision 1 also refers.

Compliance: As specified in the Requirement Document with a revised effective date of 12 October 1995.

Background: The FAA received a report that during routine maintenance a centre drive unit (CDU) was not able to hold the fan reverser translating cowl when it was manually driven to its stow position. Investigation highlighted a CDU brake shaft manufacturing error. This situation could result in the possible movement of the fan reverser translating cowl towards the deploy position in flight.

Source text

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

1 AD/CF6/34 - Fan Reverser Centre Drive Unit