Commonwealth legislation

AD/PC-12/5 - Hydraulic Hand Pump

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This AD mandates incorporation of Pilatus modification 960341 (per Pilatus PC‑12 Service Bulletin No. 29‑001, 1 Jul 1996) on PC‑12 aircraft S/N 101–153, to be done within 300 flight hours after 30 Jan 1997 or by 30 Apr 1997, whichever is earlier.

It’s required by the regulator, enforced on owners/operators who pay costs, and was ordered to prevent a hand‑pump non‑return valve failure that can stiffen the power control lever in flight.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/PC-12/5 - Hydraulic Hand Pump.

AD/PC-12/5 - Hydraulic Hand Pump

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
Pilatus PC-12 Series Aeroplanes

AD/PC-12/5 Hydraulic Hand Pump 2/97

Applicability: All PC-12 aircraft from S/N 101 up to and including S/N 153.

Requirement: Incorporate Pilatus modification 960341 as detailed in Pilatus PC XII Service Bulletin No 29-001 dated Jul 01, 96.

Note: Swiss FOCA AD HB96-139 dated 18-03-1996 refers.

Compliance: Unless previously carried out action within 300 hours time in service from an effective date of 30 January 1997 or by 30 April 1997, whichever occurs first.

Background: The manufacturer has advised of a hand pump non return valve failure which resulted in main system hydraulic pressure entering the hand pump. This pressure caused the hand pump handle to come in contact with the top of the nose wheel well which then forced the pump body to move upwards and impact on the PCL quadrant assembly.

This caused the PCL movement to be stiff during flight.

Source text

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

1 AD/PC-12/5 - Hydraulic Hand Pump