Commonwealth legislation

AD/HU 269/70 - Main Rotor Thrust Bearing P/N 269A5050-73 - Inspection

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This CASA Airworthiness Directive mandates a one-time inspection of the main rotor thrust bearing (P/N 269A5050-73) on Schweizer/Hughes 269A, 269A‑1 and 269B helicopters with bearings in the serial-number range specified by Hughes Service Information Notice N‑174. Owners/operators must inspect within 100 flight hours from 31 May 1981 to find a manufacturing defect that could cause catastrophic rotor failure.

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Current sections

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AD/HU 269/70 - Main Rotor Thrust Bearing P/N 269A5050-73 - 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 Schweizer (Hughes) 269 Series Helicopters

AD/HU 269/70 Main Rotor Thrust Bearing P/N 269A5050-73 - Inspection

Applicability: Models269A, 269A-1, 269B. Document: Hughes SIN N-174.

Compliance: Within 100 hours time in service after 31 May 1981.

5/81

Background: A manufacturing defect may exist in main rotor thrust bearings within a specific serial number group.

Source text

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