Commonwealth legislation

AD/IAI-A/17 - Main Landing Gear Ground Contact Switches

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires operators of Gulfstream/IAI Model 1125 Astra, Astra SPX and G100 aeroplanes (serial numbers 004–127) to adjust the main landing‑gear ground contact switches using the revised procedures in the G100 Maintenance Manual and GALP Service Bulletin 1125-32A-233 Rev 1. CASA issued the directive; affected operators must complete the adjustment within 200 flight‑hours at their expense to prevent false ‘Ground’ signals that can trigger in‑flight airbrake deployment.

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AD/IAI-A/17 - Main Landing Gear Ground Contact Switches

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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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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Israel Aircraft Industries 1125 (Astra) Series Aeroplanes

AD/IAI-A/17 Main Landing Gear Ground Contact Switches

12/2003

Applicability: Gulfstream Aerospace LP (GALP) Model 1125 Astra, Astra SPX and G100 aeroplanes with serial numbers 004 through 127 inclusive.

Requirement: Unless already accomplished, adjust the main landing gear ground contact switches in accordance with the revised procedures in the G100 Maintenance Manual and GALP Service Bulletin 1125-32A-233 Revision 1 dated 1 August 2003.

Note 1: The G100 Maintenance Manual procedures for adjusting the main landing gear ground contact switch were revised by Temporary Revision (TR) 32-8 dated 12 April 2001. Maintenance Manual Revision 4, dated 1 August 2001, subsequently incorporated the revised procedures and removed TR 32-8.

Note 2: Israel CAA AD 32-03-08-05 refers.

Compliance: Within 200 hours time in service after the effective date of this Directive This Airworthiness Directive becomes effective on 27 November 2003.

Background: The Israel Civil Aviation Administration has received reports of in-flight deployment of the ground airbrakes following lowering of the landing gear. This Directive requires the adjustment of the main landing gear ground contact switch to prevent false ‘Ground’ position signals causing the ground airbrakes to deploy and the aircraft to roll.

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Jim Coyne

Delegate of the Civil Aviation Safety Authority 14 October 2003

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The above AD is notified in the Commonwealth of Australia Gazette on 5 November 2003.

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Source text

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

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

AIRWORTHINESS DIRECTIVE

Israel Aircraft Industries 1125 (Astra) Series Aeroplanes

AD/IAI-A/17 Main Landing Gear Ground Contact Switches

12/2003

Applicability: Gulfstream Aerospace LP (GALP) Model 1125 Astra, Astra SPX and G100 aeroplanes with serial numbers 004 through 127 inclusive.

Note 2: Israel CAA AD 32-03-08-05 refers.

Compliance: Within 200 hours time in service after the effective date of this Directive This Airworthiness Directive becomes effective on 27 November 2003.