Commonwealth legislation

AD/DH 104/33 - Nose Undercarriage Inner Casing - Inspection and Replacement

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This directive requires all DH 104 (Dove) operators to follow Hawker Siddeley TNS CT(104) No. 232: perform an initial nose‑undercarriage inner‑casing inspection within 50 hours’ service after 29 Oct 1973, re‑inspect every ≤600 hours and after heavy landings, and replace the casing by 17 Mar 1975. It directly affects owners/operators and their maintenance providers, imposing short‑term replacement costs, recurring inspection labour/downtime, and scheduling/logging duties to meet the set deadlines.

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AD/DH 104/33 - Nose Undercarriage Inner Casing - Inspection and Replacement

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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 DH 104 (Dove) Series Aeroplanes

AD/DH 104/33 Nose Undercarriage Inner Casing - Inspection

and Replacement

10/73

Applicability: All models.

Document: Hawker Siddeley TNS CT(104) No. 232.

Compliance: 1. Inspect casing in accordance with paras. 3.5 and 4.1 of TNS CT(104) No. 232 within 50 hours time in service after 29 October 1973 and thereafter at intervals not exceeding 600 hours time in service and after any reported heavy landings.

Replace casing in accordance with para. 3.2 of TNS CT(104) No. 232 before 17 March 1975.

Source text

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