Document ID: chunk:federal_register_of_legislation:F2007L01053:body:0:p2
Version: federal_register_of_legislation:F2007L01053
Segment Type: other
Provision Reference: 
Character Range: 2942–5772

bearing P/N 537721, installed in the crankcase, replace it with a serviceable bushing P/N 654472 or equivalent approved bearing.  Use the bushing installation procedure specified in Part 4 of TCM MSB94-4G or later FAA approved revisions.

             Note 3:  FAA Airworthiness Directive AD 2007-05-15 Amendment 39-14976 dated
             12 March 2007 refers.
Compliance:     1. Before further flight.

                2. For any engine that has been inspected earlier in accordance with the instructions of this AD at any revision status:

                  Continue the inspections at the next 100-hours time-in-service (TIS) inspection or annual inspection, whichever occurs first after the effective date of this AD. Thereafter, repeat the inspections at each 100-hours TIS inspection, (plus or minus 10 hours) or annual inspection, whichever occurs first.

                For any engine that has NOT been inspected earlier:

                  Within 25 hours TIS or annual inspection, which ever occurs first, after the effective date of this AD. Thereafter, repeat the inspections at each 100-hours TIS inspection (plus or minus 10 hours) or annual inspection, whichever occurs first.

                3. For any starter adapter with 400 hours or more TIS or unknown TIS on the effective date of this AD:

                  Unless previously accomplished, carry out within 25 hours TIS after the effective date of this AD and repeatedly thereafter, at intervals not to exceed 400-hours TIS (plus or minus 10 hours).

                For any starter adapter with less than 400 hours TIS on the effective date of this AD:

                  Upon accumulation of 400 hours TIS (plus or minus 10 hours), and repeatedly thereafter, at intervals not to exceed 400-hours TIS (plus or minus 10 hours).

                4. Unless previously accomplished, carry out at the next engine overhaul or starter adapter replacement after the effective date of this AD, whichever occurs first.

                5. Before reassembling components.

             This Amendment becomes effective on 10 May 2007.
Background:  This AD results from six service difficulty reports and one fatal accident report received related to the failed starter adapter assemblies.  The actions detailed in this AD are intended to prevent failure of the starter adapter assembly and / or crankshaft gear, resulting in failure of the engine and possible forced landing.

             The current amendment makes reference to the latest revision of TCM service documents and the latest FAA AD 2007-05-15.

             The Amendment 2 of this AD became effective on 22 December 2005.

             The Amendment 1 of this AD became effective on 2 November 2005.

Charles Lenarcic
Delegate of the Civil Aviation Safety Authority

27 March 2007