Commonwealth legislation

AD/TPE 331/29 - Combustion Section - Plenum Chamber Forward Drain Boss - Inspection

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

What it does: This directive mandates a safety inspection of a specific engine part—the forward drain boss located on the plenum chamber within the combustion section—on certain aircraft turbine engines.

Who it affects: Owners and operators of AlliedSignal (Garrett/AiResearch) TPE331-8-401S, 402S, 403S, and 404S model turbine engines.

What must be done: Inspect the forward plenum chamber drain boss for cracks within 25 hours of flight time (measured from when the aircraft is operating) after 1 February 1983.

Why it matters: The engine manufacturer discovered cracks developing in this component, which could lead to engine failure or compromise flight safety. This rule ensures potential defects are identified and repaired before they cause serious incidents.

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Current sections

Direct links to the current provisions in AD/TPE 331/29 - Combustion Section - Plenum Chamber Forward Drain Boss - Inspection.

AD/TPE 331/29 - Combustion Section - Plenum Chamber Forward Drain Boss - Inspection

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source AlliedSignal (Garrett/AiResearch) Turbine Engines - TPE 331 Series

AD/TPE 331/29 Combustion Section - Plenum Chamber

Forward Drain Boss - Inspection

Applicability: TPE331-8-401S, 402S, 403S, 404S.

Document: Garrett Turbine Engine Company SB No. TPE331-72-0373; or AD/AIR-T/45.

Compliance: Within 25 hours time in service after 1 February 1983.

3/86

Background: This Directive is issued as the result of notification from the engine manufacturer that cracks have been found at the forward plenum chamber drain boss of the engine combustion section.

Source text

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