Document ID: chunk:federal_register_of_legislation:F2008L00151:body:0:p2
Version: federal_register_of_legislation:F2008L00151
Segment Type: other
Provision Reference: 
Character Range: 2985–4861

For Requirement 1:

                   (a) Remains unchanged as detailed in the original issue of this Directive as:  Within 30 days after 5 June 2002 (the effective date of the original issue of this Directive), unless previously accomplished.

                   (b) Remains unchanged as detailed in the original issue of this Directive as:  With the exception of aeroplanes modified and functionally tested in accordance with a production equivalent, within 60 days after 5 June 2002, unless previously accomplished.

                For Requirement 2: At intervals not exceeding 1,000 flight hours.

                For Requirement 3: At intervals not exceeding 6,000 flight hours.

                For Requirement 4: Prior to further flight after the effective date of this Directive.

                For Requirement 5: Prior to further flight after the effective date of this Directive
                This Amendment becomes effective on 23 January 2008.
Background:     A possible leakage of the thrust reverser Directional Pilot Valve (DPV), due to a poppet valve being slightly jammed open or a leaking o-ring, has been identified by a report to the FAA as a latent failure of the fail-safe features of the thrust reverser system.  The actions specified in this Directive are intended to ensure the integrity of the fail-safe features by preventing possible failure modes that could result in inadvertent deployment of the thrust reverser in flight.

                This amendment includes a statement approving the use of later FAA approved service bulletins which have been approved by the FAA as an AMOC to the referred FAA AD. There is no change to the requirements or compliance periods.

                The original issue of this AD became effective on 5 June 2002.

Charles Lenarcic
Delegate of the Civil Aviation Safety Authority

16 January 2008