Document ID: chunk:federal_register_of_legislation:F2017L00863:body:0:p3
Version: federal_register_of_legislation:F2017L00863
Segment Type: other
Provision Reference: 
Character Range: 5564–6511

November 1982.
             Note 7:  Compliance with AD/ELECT/42 Amdt 1 constitutes compliance with this AD.
             This AD commences on 21 July 2017.
Background:  Engine stoppage, attributed to failure of the magneto impulse coupling, has occurred in two aircraft (less than 200 hours operating time). It was found that the impulse coupling flyweights had been improperly heat treated (soft) and had worn rapidly and jammed. It is believed this damaged the engine accessory drive resulting in engine failure.
             Amendment 1 of this Directive was issued to highlight the latest revision of the referenced Service Bulletin. Torque figures and procedures were revised.
             Amendment 2 is issued to correct a typographical error in the number of the referenced FAA AD and to remove a reference to AD/ELEC/27B in Note 4 as AD/ELEC/27B has been repealed.

Ben Wilson
Delegate of the Civil Aviation Safety Authority
27 June 2017