Commonwealth legislation

AD/GAF-N22/50 Amdt 2 - Fin Attachment Fittings

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

What it does: This airworthiness directive requires owners/operators of Nomad N22/N24 aeroplanes that do not have modification N602 together with either N600A or N600B to replace a specific fin‑attachment bolt or install the listed GAF modifications; installing N600A/N600B removes the bolt requirement. It cites ASTA and GAF service bulletins. Operators pay for parts and maintenance. Compliance is by the first Maintenance Release after 30 Nov 1989 (unless mods done) or before 3000 component hours; CASA enforces compliance.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/GAF-N22/50 Amdt 2 - Fin Attachment Fittings.

AD/GAF-N22/50 Amdt 2 - Fin Attachment Fittings

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-N22/50

Amdt 2

Fin Attachment Fittings 11/89

Applicability: All Nomad N22 and N24 series aeroplanes which do not incorporate modification N602 together with either modification N600A or N600B.

Requirement: 1. Action in accordance with ASTA Alert Service Bulletin ANMD-55-23, dated 27 June 1989.

Action in accordance with GAF Service Bulletin NMD-53-5 and GAF Service Bulletin NMD-55-21.

Note: Compliance with Requirement 2 constitutes terminating action for Requirement 1.

Compliance: 1. Not later than the first issue of a Maintenance Release after 30 November 1989, unless Requirement 2 has been accomplished.

Before exceeding 3000 hours component time in service.

Background: The original retirement life of 3000 hours was promulgated based on fatigue analysis. Recent service experience of pre-mod N331 aircraft has revealed that the original bolt P/N 2/N-00-43 may be susceptible to cracking before reaching 3000 hours component time in service. This Amendment calls up a bolt replacement as an interim alternative to incorporating modification N600A or N600B.

Source text

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

1 AD/GAF-N22/50 Amdt 2 - Fin Attachment Fittings