Commonwealth legislation

AD/CESSNA 320/23 - Main Landing Gear Attachment - Inspection

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legislative instrument

Plain English Summary

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Mandates that owners/operators of Cessna 320–320D aircraft jack the aeroplane, remove main landing‑gear “U” bolts and attaching shafts, and inspect (with a 10× glass) for cracks at the thread‑root ends and at the roll‑pin hole. Parts with ≥2,500 hours as of 12 Aug 1975 must be inspected within 100 hours and then every 200 hours; all others before 2,500 hours and thereafter every 200 hours. This creates recurring inspection work and maintenance costs for operators and requires certified maintenance personnel to perform removals and checks.

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AD/CESSNA 320/23 - Main Landing Gear Attachment - Inspection

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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 Cessna 320 Series Aeroplanes

AD/CESSNA 320/23 Main Landing Gear Attachment - Inspection

Applicability: All models 320 to 320D inclusive. Requirement: With aeroplane on jacks:

Remove Main Landing Gear Attaching “U” Bolts and Shafts.

8/75

2. Visually inspect the “U” Bolts, with the aid of a 10X glass, in the area of the thread root ends for cracks.

3. Visually inspect the Attaching Shafts, with the aid of a 10X glass, in the area of the roll pin hole for cracks.

Compliance: 1. For MLG attachment shafts and “U” bolts which have achieved 2500 hours at 12 August 1975; within 100 hours time in service and thereafter at intervals not exceeding 200 hours time in service.

All other MLG attachment shafts and “U” bolts; before achieving 2500 hours time in service and thereafter at intervals not exceeding 200 hours time in service.

Source text

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