Document ID: chunk:federal_register_of_legislation:F2006B08626:body:0:p2
Version: federal_register_of_legislation:F2006B08626
Segment Type: other
Provision Reference: 
Character Range: 3634–4892

2:

                  1. Aircraft with 50 hours time in service (TIS) since installation of an AOA vane P/N 600-59154-5 - Before accumulating 50 hours TIS from the effective date of this Directive and thereafter at intervals not to exceed 100 hours TIS.

                 b.        Aircraft with less than 50 hours TIS since installation of an AOA vane P/N 600-59154-5 - At or before accumulating a total of 100 hours TIS since installation of the AOA vane and thereafter at intervals not to exceed 100 hours TIS.

            For Requirement 3 - Before the next flight.

            This Airworthiness Directive becomes effective on 15 December 2004.

            Background: Transport Canada has advised that AOA vanes P/N 600-59154-5 can develop premature wear of the potentiometer which can delay the stall computer commands for stall warning, stick shaker and stick pusher operation. The problem is dormant and an out-of-tolerance AOA transducer can only be identified on in service aircraft through a maintenance check of the transducer resistance.

 James Coyne
 Delegate of the Civil Aviation Safety Authority 9 December 2004

 The above AD is notified in the Commonwealth of Australia Gazette on 15 December 2004.