Commonwealth legislation

AD/ML-M4/8 - Flight Control System Pulley - 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This Act has been repealed and is no longer in force. It is retained for historical reference.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 is: An Airworthiness Directive (AD) — a mandatory safety order issued by the Civil Aviation Safety Authority (CASA) that legally requires aircraft owners to fix a specific mechanical defect.

What it requires: Owners and operators of Maule M-4 series aircraft must modify the pulleys in the flight control system. These pulleys are the small wheels that guide the cables controlling the aircraft's wing flaps and tail surfaces (ailerons, elevator, and rudder).

How to comply: You must carry out the modification exactly as described in Maule Service Letter No. 19 (the manufacturer's technical instructions) within 100 hours of flying time after 20 February 1970.

Why it matters: Flight control pulleys are critical to safe flight. If a pulley fails, the pilot could lose control of the aircraft. This directive ensures all affected aircraft received a necessary hardware upgrade to prevent in-flight mechanical failure.

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Current sections

Direct links to the current provisions in AD/ML-M4/8 - Flight Control System Pulley - Modification.

AD/ML-M4/8 - Flight Control System Pulley - 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 Maule M-4 Series Aeroplanes

AD/ML-M4/8 Flight Control System Pulley - Modification 2/70

Applicability: All models. Document: Maule SL No. 19.

Compliance: Within 100 hours time in service after 20 February 1970.

Source text

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