Commonwealth legislation

AD/CHA/17 - Wing Strut and Spar Attachment Bolt

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

This directive mandates periodic retirement (removal and replacement) of specified wing attachment bolts on American Champion 8GCBC and 8KCAB aircraft. Owners/operators must track time-in-service and meet the retirement schedule: 1200‑hour recurring intervals, with an initial 200‑hour deadline for aircraft already ≥1,000 TIS as of 30 Nov 1977.

For 8KCABs, each aerobatic hour counts as 10 normal hours, accelerating retirements; operators bear costs, downtime, and compliance responsibility.

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AD/CHA/17 - Wing Strut and Spar Attachment Bolt

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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American Champion (Aeronca, Bellanca) Series Aeroplanes

AD/CHA/17	Wing Strut and Spar Attachment Bolt	11/77
Applicability:	All model 8GCBC and 8KCAB.
Requirement:	Retire from service:

The front and rear wing strut upper and lower attachment bolts.

2. The front and rear wing spar to fuselage attachment bolts.

Compliance: 1. For aircraft which have achieved 1000 hours time in service: within 200 hours time in service after 30 November 1977 and thereafter at intervals not exceeding 1200 hours time in service.

For all other Aircraft: at intervals not exceeding 1200 hours time in service.

Note: For 8KCAB aircraft each hour engaged in aerobatics shall be counted as equivalent to 10 hours normal flight.

Source text

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

1 AD/CHA/17 - Wing Strut and Spar Attachment Bolt

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

American Champion (Aeronca, Bellanca) Series Aeroplanes

AD/CHA/17	Wing Strut and Spar Attachment Bolt	11/77
Applicability:	All model 8GCBC and 8KCAB.
Requirement:	Retire from service:

The front and rear wing strut upper and lower attachment bolts.

2. The front and rear wing spar to fuselage attachment bolts.

For all other Aircraft: at intervals not exceeding 1200 hours time in service.

Note: For 8KCAB aircraft each hour engaged in aerobatics shall be counted as equivalent to 10 hours normal flight.