Document ID: chunk:federal_register_of_legislation:F2007L02371:body:0:p2
Version: federal_register_of_legislation:F2007L02371
Segment Type: other
Provision Reference: 
Character Range: 2888–4225

For Requirements 1 and 2:

                Unless previously accomplished, aircraft that have accumulated 2,000 flight hours or more upon the effective date of this AD; prior to accumulating 550 flight hours from the effective date of this AD; and

                Aircraft with less than 2,000 flight hours upon the effective date of this directive; prior to reaching 2,000 flight hours or prior to accumulating 550 flight hours from the effective date of this directive, whichever is reached later.

                For Requirement 3:

                At the next repeat visual inspection of the aileron PCU link as detailed in Requirement 5 of this AD.

                For Requirement 4:

                Within 30 days of the initial inspection, unless previously accomplished.

                For Requirement 5:

                At intervals not to exceed 1000 flight hours.
             This Airworthiness Directive becomes effective on 30 August 2007.
Background:  Transport Canada has received reports of aileron power control unit (PCU) link failures on several in-service aircraft.  Failure of one link is considered to be a dormant failure; failure of both PCU links to an aileron could result in reduced lateral control of the aircraft.

David Punshon
Delegate of the Civil Aviation Safety Authority

25 June 2007