Commonwealth legislation

AD/BEECH 1900/44 - Landing Gear Circuit Breaker

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires owners/operators of Beechcraft 1900C aeroplanes (serial numbers UB‑1 to UB‑35) to replace the 200‑amp landing‑gear electrical current limiter with a 60‑amp circuit breaker using Raytheon Kit No. 114‑3036‑1 per Mandatory Service Bulletin SB 24‑2616 Rev.1, within 600 flight hours. CASA states the change aims to prevent heat damage and loss of landing‑gear and related electrical functions; operators bear the cost, labour and downtime to schedule and fit the kit to comply.

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AIRWORTHINESS DIRECTIVE

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For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

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Beechcraft 1900 Series Aeroplanes

AD/BEECH 1900/44 Landing Gear Circuit Br

AD/BEECH 1900/44 Landing Gear Circuit Breaker 8/2004

Applicability: Model 1900C aeroplanes, serial numbers UB-1 through UB-35 inclusive. Requirement: Unless already accomplished, incorporate Kit No. 114-3036-1, which replaces the

200-amp landing gear electrical power current limiter with a 60-amp circuit breaker, in accordance with the procedures in Raytheon Mandatory Service Bulletin SB 24- 2616, Rev. 1, Revised: April, 2002.

Note: FAA AD 2004-09-30 Amdt 39-13620 refers.

Compliance: Within the next 600 hours time-in-service (TIS) after the effective date of this Directive.

This Airworthiness Directive becomes effective on 5 August 2004.

Background: This Directive requires the replacement of the 200-amp electrical power current limiter in the landing gear with a 60-amp electrical power circuit breaker. This is the result of reports received by the United States Federal Aviation Administration about the inability to automatically lower the landing gear and the inability to operate other related electrical systems.

The Directive is issued to prevent heat damage to the electrical wiring in and around the landing gear electrical systems components, which could result in the inability to operate critical control systems.

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James Coyne

Delegate of the Civil Aviation Safety Authority 23 June 2004

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 14 July 2004.

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

AIRWORTHINESS DIRECTIVE

Beechcraft 1900 Series Aeroplanes

AD/BEECH 1900/44 Landing Gear Circuit Br AD/BEECH 1900/44 Landing Gear Circuit Breaker 8/2004

AD/BEECH 1900/44 Landing Gear Circuit Breaker 8/2004

Applicability: Model 1900C aeroplanes, serial numbers UB-1 through UB-35 inclusive. Requirement: Unless already accomplished, incorporate Kit No. 114-3036-1, which replaces the

Note: FAA AD 2004-09-30 Amdt 39-13620 refers.

Compliance: Within the next 600 hours time-in-service (TIS) after the effective date of this Directive.

This Airworthiness Directive becomes effective on 5 August 2004.

James Coyne

Delegate of the Civil Aviation Safety Authority 23 June 2004

The above AD is notified in the Commonwealth of Australia Gazette on 14 July 2004.