Commonwealth legislation

AD/G1159/5 - High Pressure Fuel Cock - 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This Act has been repealed and is no longer in force. It is retained for historical reference.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 Airworthiness Directive (AD) orders owners or operators of specific Gulfstream business jets to modify the aircraft's high pressure fuel cock (a valve controlling fuel flow).

Who it affects: Operators of Gulfstream II (model G1159) and G-IV series aircraft with serial numbers 1 to 107 and 775.

What must be done: The fuel cock must be modified exactly as described in the manufacturer's technical document — Grumman Gulfstream II Service Change No. 120 (including Amendment 1).

Deadline: The modification had to be completed within 100 hours of flight time after 31 May 1972 (meaning this is a historical directive that would already apply to any remaining eligible aircraft).

Why it matters: Airworthiness Directives are legally binding safety orders. Non-compliance grounds the aircraft — it cannot legally fly until the work is done.

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AD/G1159/5 - High Pressure Fuel Cock - 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) G1159 and G-IV Series Aeroplanes

AD/G1159/5 High Pressure Fuel Cock - Modification 5/72

Applicability: All models with S/Nos. 1 to 107 and 775.

Document: Grumman Gulfstream II Service Change No. 120 and Amendment 1. Compliance: Within 100 hours time in service after 31 May 1972.

Source text

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