Commonwealth legislation

AD/BEECH 400/18 - Wing Temperature Thermal Switch

In ForceCTH

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

Mandates replacement of wing-temperature thermal switches on specified Beechcraft Model 400/400T aeroplanes with improved assemblies per Raytheon Service Bulletin 30‑3008, and bans installation of a listed set of older switch part numbers. Affects owners/operators of the serial‑numbered aircraft; replacements are required at the next scheduled maintenance or within 200 flight hours. The directive seeks to correct an identified unsafe condition and shifts costs and scheduling burden to operators while relying on the manufacturer's service bulletin for technical instructions.

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AIRWORTHINESS DIRECTIVE

View image in the official source

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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 CAR 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.

AD/BEECH 400/18 Wing Temperature Thermal

AD/BEECH 400/18 Wing Temperature Thermal Switch 7/2000

Applicability: Model 400A series aeroplanes, serial numbers (S/N) RK-01 through RK-188 inclusive; Model 400T (T-1A) series aeroplanes, S/N TT-01 through TT-180 inclusive; and Model 400T (TX) series aeroplane S/N TX-01 through TX-09 inclusive.

Requirement: 1. Replace the temperature switch assemblies of the wing ice protection system with new, improved switch assemblies in accordance with Raytheon Service Bulletin (SB) 30-3008 Revision 1, dated August 1999.

Replacements accomplished in accordance with Raytheon SB 30-3008, dated March 1999, prior to the effective date of this Directive are considered acceptable for compliance with this Directive.

Switch assemblies having one of the following part numbers may not be fitted to any aircraft:

45AS63026-3	128-362038-1	128-361041-11
45AS63026-5	128-361038-3	128-361042-3
45AS63026-11	128-361041-3	128-361042-5
128-361037-1	128-361041-5	128-361042-9
128-361037-3	128-361041-9	128-361042-11

Note: FAA AD 2000-09-12 Amdt 39-11721 refers.

Compliance: For Requirement 1 - At the next scheduled maintenance inspection, but no later than 200 hours time in service after the effective date of this Directive.

For Requirement 2 - As of the effective date of this Directive. This Airworthiness Directive becomes effective on 13 July 2000.

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

AIRWORTHINESS DIRECTIVE

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 CAR 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.

AD/BEECH 400/18 Wing Temperature Thermal AD/BEECH 400/18 Wing Temperature Thermal Switch 7/2000

AD/BEECH 400/18 Wing Temperature Thermal Switch 7/2000

Replacements accomplished in accordance with Raytheon SB 30-3008, dated March 1999, prior to the effective date of this Directive are considered acceptable for compliance with this Directive.

Switch assemblies having one of the following part numbers may not be fitted to any aircraft:

45AS63026-3	128-362038-1	128-361041-11
45AS63026-5	128-361038-3	128-361042-3
45AS63026-11	128-361041-3	128-361042-5
128-361037-1	128-361041-5	128-361042-9
128-361037-3	128-361041-9	128-361042-11

Note: FAA AD 2000-09-12 Amdt 39-11721 refers.

Compliance: For Requirement 1 - At the next scheduled maintenance inspection, but no later than 200 hours time in service after the effective date of this Directive.

For Requirement 2 - As of the effective date of this Directive. This Airworthiness Directive becomes effective on 13 July 2000.