Document ID: chunk:federal_register_of_legislation:F2006B09594:body:0:p2
Version: federal_register_of_legislation:F2006B09594
Segment Type: other
Provision Reference: 
Character Range: 3050–4047

Note: Flight crew may perform this action in accordance with a temporary flight manual amendment incorporating Requirement 2 into the pre-flight check list.

           Requirement 4, after compliance with Requirement 1 of this AD, thereafter, at each annual inspection, or 100 hours time in service, which ever occurs first unless Requirement 2b has been implemented.

           Note: Replacement of the existing voltage control system with a transistorised voltage controller, P/N ECD-069-11, and modifying the wiring in accordance with paragraph 6.4 of Enstrom Helicopter Corporation SDB No. 0086, dated 31 March 1996, is considered terminating action for the requirements of this AD.

           This airworthiness directive becomes effective on 4 December 1997.

           Background:  This AD is intended to prevent an electrical overload and a failure of the voltage regulator and over-voltage relay, that could result in an inflight fire, and subsequent forced landing of the helicopter.