AD/GAF-N22/20 Amdt 1 - Hot Air Check Valve - Inspection and Modification

This airworthiness directive mandates inspection and modification of the hot air check valve on GAF N22 and N24 series aeroplanes by requiring compliance with GAF Alert SB AN22-74-1 Revision 1. It applies to aircraft owners/operators and the maintenance organisations that must carry out the work.

Operators pay for and schedule the work to remain airworthy and avoid enforcement; maintenance providers must follow the referenced service bulletin’s procedures to demonstrate compliance, creating workload and potential aircraft downtime.

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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 GAF N22 and N24 Series Aeroplanes

AD/GAF-N22/20

Amdt 1

Hot Air Check Valve - Inspection and Modification

8/78

Applicability: As detailed in GAF Alert SB AN22.74.1 Revision 1. Document: GAF Alert SB AN22-74-1 Revision 1.

Compliance: In accordance with the requirement document.