Commonwealth legislation

AD/DAUPHIN/17 - Hydraulic System

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

Owners/operators of Eurocopter Dauphin Model SA360C and SA365 (C, C1, C2, C3) must fit a spring spacer in the hydraulic system per Aerospatiale Service Bulletin No. 29‑01. The retrofit—required before the next flight after 31 Dec 1986—aims to prevent hydraulic overpressure if a regulator‑valve stem flange detaches. Maintenance shops and spare suppliers must ensure parts are modified before installation; operators bear parts and labour costs.

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AD/DAUPHIN/17 - Hydraulic System

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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 Eurocopter SA 360 and SA 365 (Dauphin) Series Helicopters

AD/DAUPHIN/17 Hydraulic System 1/87 DM

Applicability: All Model SA360C, SA365C, C1, C2 and C3 helicopters.

Requirement: Action in accordance with Aerospatiale SA360 and 365 Service Bulletin No. 29-01.

Note: French AD 86-176-27(B) refers.

Compliance: Before further flight after 31 December 1986.

For spares: before installation in an aircraft after 31 December 1986.

Background: A spring spacer is fitted to prevent an overpressure in the hydraulic systems if the flange of the regulator valve stem should come off.

Source text

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