AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Sikorsky S-76 Series Helicopters

AD/S-76/73 Dual Inverter Wiring 6/2004 D AD/S-76/73 Dual Inverter Wiring 6/2004 DM

AD/S-76/73 Dual Inverter Wiring 6/2004 DM

Applicability: Model S-76 A, B and C helicopters with dual channel autopilot and dual inverters installed.

Note 1: Helicopters with the following serial numbers were manufactured with the dual channel autopilot and dual inverters installed:

S-76 A

760267	760300 through 760302	760366
760268	760304 through 760309	760369 through 760371
760270 through 760298	760364	760373 through 760378
S-76 B
760262	760393	762976 (760433)
760269	760395	760437
760299	760399	760439
760303	760403	760441 through 760445
760310 through 760363	760404	760447 through 760452
760365	760409	760454
760367	760410	760455
760368	760413	760458
760372	760414	760462
760379 through 760382