Commonwealth legislation

AD/JETSTREAM/51 Amdt 1 - Hydraulic Power Emergency Selector Valve

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

The directive requires inspection and, if needed, corrective work on the hydraulic emergency selector valve per British Aerospace Service Bulletin CAA (UK) mandatory 29‑JA 901242 Rev 1. It covers HP137 Mk 1 and Jetstream Series 200, 3100 and 3200 aircraft and must be completed at the next 1800‑hour inspection or by 31 August 1992, whichever comes first.

Operators pay for parts, labour and downtime; CASA enforces compliance. The stated safety purpose is to ensure the emergency hydraulic system can lower flaps and landing gear.

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AD/JETSTREAM/51 Amdt 1 - Hydraulic Power Emergency Selector Valve

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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British Aerospace BAe 3100 (Jetstream) Series Aeroplanes

AD/JETSTREAM/51

Amdt 1

Hydraulic Power Emergency Selector Valve 6/92

Applicability: All Model HP137 Mk 1, Jetstream Series 200, 3100 and 3200 Series aircraft.

Requirement: Action in accordance with the Technical Requirements of British Aerospace Service Bulletin, CAA (UK) mandatory, 29-JA 901242 Revision 1 dated 25 September 1991.

Note: FAA AD 92-07-04 amdt 39-8200 refers.

Compliance: Required at next 1800 hour scheduled inspection, or by 31 August 1992, which ever occurs first

Background: Operators have reported cases of an excessive load required to operate the flaps and main landing gear emergency selector valve handle on in-service aircraft. Failure of the emergency selector valve would result in the flight crew being unable to use the emergency hydraulic system to lower the flaps and landing gear. This amendment has been raised to add the HP137 and 200 series aircraft and the FAA AD reference to the directive.

Source text

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

1 AD/JETSTREAM/51 Amdt 1 - Hydraulic Power Emergency Selector Valve