Document ID: chunk:federal_register_of_legislation:F2007L00641:body:0:p2
Version: federal_register_of_legislation:F2007L00641
Segment Type: other
Provision Reference: 
Character Range: 2863–4173

on the effective date of this AD, perform the action within the next 12 months after the effective date of this AD.

                2) For aeroplanes meeting Requirement 2:

                  (i) Within the next 30 days after the effective date of this AD.

                  (ii) Before further flight after the inspection required in paragraph 2(i) of this AD.

                  (iii) Before further flight after the inspection required in paragraph 2(i) of this AD.
             This Airworthiness Directive becomes effective on 11 April 2007.
Background:  This AD results from reports of the crew seat back cylinder lock assembly failing at the aft end area and other cylinder lock assemblies found cracked.  The actions specified in this AD are intended to prevent the crew seat cylinder lock assembly from bending, cracking, or failing.  This failure could cause uncontrolled movement of the seat back, resulting in possible backward collapse during flight.  Backward collapse of either crew seat back could result in an abrupt pitch-up if the affected crew member continues to hold on to the control yoke during this failure and could cause difficulty in exiting the airplane from an aft passenger seat after landing.

David Villiers
Delegate of the Civil Aviation Safety Authority

9 March 2007