Document ID: chunk:federal_register_of_legislation:F2009L00690:body:0:p4
Version: federal_register_of_legislation:F2009L00690
Segment Type: other
Provision Reference: 
Character Range: 8462–10314

occurs first.

   For Requirement 3b - At intervals not to exceed 2,000 landings or one calendar year from the previous inspection, whichever occurs first.

      For Requirement 4 - Within 7 days after each inspection.

      For Requirement 5

      For aircraft main landing gear retract actuators (p/n 46550-7 or 46550-9 or 46550-11) that have accumulated 7,500 or more landings or more than 4 years in service since new at the effective date of this AD - Within 500 landings or 3 months from the effective date of this AD, whichever occurs first.

      For aircraft main landing gear retract actuators (p/n 46550-7 or 46550-9 or 46550-11) that have accumulated less than 7,500 landings, and 4 years or less in service since new at the effective date of this directive - Prior to reaching 8,000 landings or 51 months in service since new, whichever occurs first.

             For Requirement 6 - Within 30 days after the effective date of this AD.
             This Amendment becomes effective on 9 March 2009.
Background:  The original issue of this AD was in response to two reported cases of main landing gear collapse.  Main landing gear collapse may result in an unsafe landing of the aircraft.

             Amendment 1 changed the compliance time by introducing calendar periods and repetitive inspections until such time that a terminating action becomes available.

             Amendment 2 amends the detailed visual inspection requirement and adds a requirement to mandate the incorporation of main landing gear actuator part number 46550-13 and adds additional maintenance requirements.

             The original issue of this AD became effective on 14 September 2007.

             Amendment 1 of this AD became effective on 2 November 2007.

James Coyne
Delegate of the Civil Aviation Safety Authority

19 February 2009