Commonwealth legislation

AD/DC4/25 - Spar Web - Modification

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

4/10 complexity

This Civil Aviation Safety Authority airworthiness directive requires Douglas DC‑4 series aircraft to receive a specified "Spar Web" modification. It does not include technical steps itself but mandates compliance by following one of four named technical documents.

Operators must obtain and apply one of those listed references, bear the cost of parts and labour, and complete the modification to meet the regulatory requirement.

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AD/DC4/25 - Spar Web - Modification

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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 Douglas DC4 Series Aeroplanes

AD/DC4/25 Spar Web - Modification NK

Document: 1. Douglas SB (C54) No. 205; or

FAA AD 46-27-1; or

ANOs Part 100, Appendix “A” Notice No. 7/25; or 4. ANO 105.1.16.2.5.24.

Source text

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