AD/CESSNA 170/9 Amdt 1 - Main Undercarriage U Bolts
1AD/CESSNA 170/9 Amdt 1 - Main Undercarriage U Bolts
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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Cessna 170, 172, F172, FR172 and 175 Series Aeroplanes
AD/CESSNA 170/9
Amdt 1
Main Undercarriage “U” Bolts 11/67
Applicability: All 172, F172, FR172 and 175 series fitted with “U” bolts P/N 0541153.
Requirement: 1. Visual: Inspect the main undercarriage “U” bolts P/N 0541153 type in situ for cracks or other damage and check that the “U” bolt retaining nuts are torqued to the values specified in the Cessna Service Manual.
- Magnetic Particle: Remove the main undercarriage “U” bolts P/N 0541153 type and inspect by the magnetic particle method for cracks particularly in the radius of bends and in the root of the threads.
Compliance: Visual: At intervals not exceeding 100 hours time in service.
Magnetic Particle: At intervals not exceeding 500 hours time in service.