Commonwealth legislation

AD/BEECH 90/84 - Landing Gear Motor Control Circuit Breaker

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

The directive requires owners/operators of specified Beechcraft 90 and 65‑90 (King Air) aeroplanes to install a circuit breaker on the landing‑gear motor control panel per Beechcraft Mandatory Service Bulletin 2035 Rev II, within 100 hours TIS after 1 Nov 1990. It aims to ensure motor protection to avoid damage that could restrict manual gear extension; costs and scheduling fall to operators and maintenance providers.

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Current sections

Direct links to the current provisions in AD/BEECH 90/84 - Landing Gear Motor Control Circuit Breaker.

AD/BEECH 90/84 - Landing Gear Motor Control Circuit Breaker

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Beechcraft 90 and 65-90 (King Air) Series Aeroplanes

AD/BEECH 90/84 Landing Gear Motor Control Circuit Breaker 11/90

Applicability: All models as listed in the Requirement Document.

Requirement: Install a circuit breaker on the landing gear motor control panel in accordance with Beechcraft Mandatory Service Bulletin 2035 Revision II.

Compliance: Prior to exceeding 100 hours’ time in service after 1 November 1990.

Background: Compliance with this AD is required to install a circuit breaker in the landing gear motor circuit which will trip and open circuit the landing gear motor circuit before the motor is damaged. Failure to comply with this AD may result in damage to the landing gear motor in a manner which could restrict operation of the manual landing gear extension system, resulting in an inability to manually lower the landing gear.

Source text

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

1 AD/BEECH 90/84 - Landing Gear Motor Control Circuit Breaker