Commonwealth legislation

AD/DC4/9 - Hydraulic Hand Pump - Modification

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive requires owners and operators of Douglas DC‑4 series aeroplanes (and their maintenance organisations) to modify the aircraft’s hydraulic hand pump by following one of three referenced documents. CASA enforces compliance; operators bear the costs, downtime and logistical burdens of sourcing parts and specialist labour. Compliance preserves airworthiness status, while non‑compliance risks enforcement or grounding; reliance on historical service documents may raise practical availability and substitution challenges.

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AD/DC4/9 - Hydraulic Hand Pump - 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/DC4/9 Hydraulic Hand Pump - Modification NK

Document: 1. Douglas SB (DC4) No. 3 revised 8 June 1948; or

FAA AD 47-2-6; or 3. ANO 105.1.16.2.5.8.

Source text

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