Commonwealth legislation

AD/BEECH 50/20 - Outer Wing Electrical Wiring

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

This Airworthiness Directive (AD) imposes mandatory safety requirements on Beechcraft 50 (Twin Bonanza) aircraft.

What it requires:

Inspect the electrical wiring located behind the rear auxiliary fuel tanks in the outer wings for wear and damage (chafing), particularly where wires pass through the structural ribs.
Replace any missing rubber grommets or insulation material that protect the wiring where it clips to the aircraft structure.

Who it affects: Owners and operators of all models of Beechcraft 50 series aeroplanes.

Why it matters: This prevents electrical wires from rubbing against metal components and short-circuiting near fuel tanks, reducing the risk of in-flight fires or electrical failures.

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AD/BEECH 50/20 - Outer Wing Electrical Wiring

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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 Beechcraft 50 (Twin Bonanza) Series Aeroplanes

AD/BEECH 50/20 Outer Wing Electrical Wiring 12/71

Applicability: All models.

Requirement: 1. Inspect the electrical wiring aft of the rear auxiliary fuel tank(s) in each outer wing for chafing, especially where it passes through the ribs at wing stations 155.78 to 273.735.

Replace any missing grommets or other insulation material missing from clips supporting the electrical wiring loom in each outer wing.

Compliance: Within 30 hours’ time in service after 21 December 1971.

Source text

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