Commonwealth legislation

AD/IAI-W/13 - Forward Engine Mount Fasteners

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

The Civil Aviation Safety Authority requires operators of certain Israel Aircraft Industries Westwind 1124/1124A (early serials) to carry out inspections and remedial work on forward engine‑mount fasteners exactly as set out in the manufacturer’s Mandatory Service Bulletin, prompted by at least one local H‑11 bolt failure. Inspections are required before 100 hours TIS after 28 Dec 1989 and then every 300 hours until replacement. Operators must obtain the bulletin, comply, and bear the costs; CASA enforces the directive.

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AD/IAI-W/13 - Forward Engine Mount Fasteners

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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 Israel Aircraft Industries 1123 and 1124 (Westwind) Series Aeroplanes

AD/IAI-W/13 Forward Engine Mount Fasteners 13/89

Applicability: Model 1124, 1124A Westwinds with Serial Numbers prior to 441, except 432, 435 and 438.

Requirement: Action in accordance with Mandatory Service Bulletin No. 1124-71-091 Revision 2.

Compliance: Prior to exceeding 100 hours time in service after 28 December 1989 or at the next scheduled inspection for issue of Maintenance Release after 28 December 1989, whichever occurs later, and thereafter at intervals not exceeding 300 hours time in service until replaced.

Background: The manufacturer considers this Mandatory. At least one local incident of an H-11 steel forward engine mount bolt failure has occurred.

Source text

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