Document ID: chunk:federal_register_of_legislation:F2006L00143:body:0:p2
Version: federal_register_of_legislation:F2006L00143
Segment Type: other
Provision Reference: 
Character Range: 3160–4223

which was detected during a maintenance inspection.  Investigation revealed the tubes failed at the location of the energy device pins.  The lower tubes remained attached, but the upper parts were completely disconnected.  This could lead to reduced ability of the pilots to control the aircraft.
             The original issue of this Directive required all crew seats above 6000 flying hours be inspected according to Pilatus PC-12 Service Bulletin No. 25-031, dated 21 July 2004. The Directive required, as an interim action, a one-time inspection of the pilot and co-pilot seat bucket assembly tubes for cracks, reporting of the inspection results and if necessary the replacement of the bucket assembly tubes.
             This amendment specifies, as terminating action, the life limitations for the backrest tubes on crew seats with and without a recline system installed.
             The original issue of this Airworthiness Directive became effective on 1 September 2004.

David Punshon
Delegate of the Civil Aviation Safety Authority

5 January 2006