Document ID: chunk:federal_register_of_legislation:F2007L00110:body:0:p2
Version: federal_register_of_legislation:F2007L00110
Segment Type: other
Provision Reference: 
Character Range: 2927–5187

assembly in accordance with Chapters 32 and 12 of PAC Cresco 08-600 MM.

             Note 1:  If cotter pin P/N 08-45729-1 does not align with the flat on the pivot pin P/N 08-45711-1, install a washer.

             Note 2:  A pilot nose wheel shimmy incident report must be investigated to prevent design loads being exceeded in the steering components.  Rework or replace worn steering link parts in accordance with the wear limits and tolerances specified in Chapter 32-20-00 table 601of PAC Cresco 08-600 MM.  The adjustment of steering damper unit P/N 08-45725-2 must be accomplished in accordance with Chapter 32-50-00 page 501, of PAC Cresco 08-600 MM.

             Note 3:  ASTM Standard No. E-1444 establishes minimum requirements for magnetic particle inspection examination used for the detection of surface or slightly subsurface discontinuities in ferromagnetic material.

             Note 4:  NZ CAA AD DCA/CRESCO/11 refers.
Compliance:     1. Within 150 hours time in service after 15 February 2007 or 1,500 landings on the nose wheel steering pivot pins, unless already accomplished within the last 150 hours time in service.  Thereafter inspect at intervals not to exceed 150 hours time in service or 1,500 landings, whichever occurs first.

                2. Within 300 hours time in service or 3,000 landings after 15 February 2007, unless already accomplished within the last 300 hours time in service.  Thereafter inspect at intervals not to exceed 300 hours time in service or 3,000 landings, whichever occurs first.

                3. Within 150 hours time in service after 15 February 2007 or before exceeding 500 hours time in service on the nose wheel steering pivot pins, whichever occurs later.  Thereafter inspect at intervals not to exceed 500 hours time in service.

                4. Within 150 hours time in service or 1,500 landings, unless already accomplished during the last 6,000 landings.  Thereafter inspect at intervals not to exceed 6,000 landings.
             This Airworthiness Directive becomes effective on 15 February 2007.
Background:  The NZ CAA received numerous reports of cracked nose wheel steering pivot pins.

David Villiers
Delegate of the Civil Aviation Safety Authority

5 January 2007