Commonwealth legislation

AD/AA-1/4 - Fuel Tank Contents Manometer Vent Lines - Modification

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

1/10 complexity

What this does: This is a safety rule for owners and operators of Gulfstream AA-1A light aircraft (small planes under 5,700 kg).

The requirement: Before an aircraft can receive its Certificate of Airworthiness (the official document certifying a plane is safe to fly), the fuel tank vent line (part number 401131-3) must be physically inspected. The inspector must verify that the plastic vent tube is not kinked (sharply bent or pinched) and is not likely to kink during normal operation.

Why it matters: A kinked fuel vent line can block airflow to the fuel tank, potentially causing incorrect fuel readings, fuel starvation, or engine failure. This one-time check prevents a known safety hazard before the aircraft enters service.

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Current sections

Direct links to the current provisions in AD/AA-1/4 - Fuel Tank Contents Manometer Vent Lines - Modification.

AD/AA-1/4 - Fuel Tank Contents Manometer Vent Lines - 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 Gulfstream (Grumman American/ American Aviation) AA-1 Series Aeroplanes

AD/AA-1/4 Fuel Tank Contents Manometer NK

Vent Lines - Modification

Applicability: Model AA-1A.

Requirement: Inspect each fuel tank contents manometer vent line P/N 401131-3 and ensure that the plastic vent line is not kinked or likely to kink in service.

Compliance: Before issue of a Certificate of Airworthiness.

Source text

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