Commonwealth legislation

AD/WNR/1 - Cylinder Hold-Down Nut - Inspection

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This CASA airworthiness directive requires recurring inspections of the cylinder hold‑down nut on Warner Scarab and Super Scarab piston engines (except those modified per Warner Service Letter No. A‑15), to be performed at intervals no greater than 100 hours and in accordance with specified technical documents.

It matters because it creates a standing maintenance obligation—and corresponding time, cost and record‑keeping burdens for owners/operators—by turning a safety concern into a mandated, recurring inspection requirement.

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Current sections

Direct links to the current provisions in AD/WNR/1 - Cylinder Hold-Down Nut - Inspection.

AD/WNR/1 - Cylinder Hold-Down Nut - Inspection

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Warner Piston Engines

AD/WNR/1 Cylinder Hold-Down Nut - Inspection NK

Applicability: All Scarab and Super Scarab engines not modified to Warner SL No. A-15. Document: 1. Warner SL No. A-15; or

ANO 106.1.16.0.2.1; or

FAA AD 51-4-2.

Compliance: At intervals not exceeding 100 hours time in service.

Source text

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