Commonwealth legislation

AD/ENST 28/11 - Fuel Tank Vent - 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This Act has been repealed and is no longer in force. It is retained for historical reference.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

2/10 complexity

This Airworthiness Directive (a mandatory safety order from the Civil Aviation Safety Authority) requires owners and operators of specific Enstrom F-28A helicopters to modify the fuel tank vent system to prevent dangerous fuel leaks or pressure imbalances.

Who it affects:

Owners and operators of Enstrom F-28A helicopters with serial numbers 03 to 339

What you must do:

Modify the fuel tank vent system following the manufacturer's instructions in Enstrom Service Note No. 0028
Complete the work within 100 hours of flight time after 27 February 1976

Why it matters: Faulty fuel tank ventilation can cause fuel starvation, leaks, or dangerous pressure build-ups during flight. This directive mandates a specific engineering fix to keep these helicopters airworthy and safe.

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Current sections

Direct links to the current provisions in AD/ENST 28/11 - Fuel Tank Vent - Modification.

AD/ENST 28/11 - Fuel Tank Vent - 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 Enstrom F-28 Series Helicopters

AD/ENST 28/11 Fuel Tank Vent - Modification 1/76

Applicability: Model F-28A with S/Nos. 03 to 339. Document: Enstrom Service Note No. 0028.

Compliance: Within 100 hours time in service after 27 February 1976.

Source text

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