Airworthiness Directive · Amendment 39-16968 · Electrical power
Bombardier, Inc. Airplanes
This AD applies to Bombardier, Inc. Model CL-600-2B16 (CL -604 Variant) airplanes, certificated in any category, serial numbers 5301, 5302, 5305 through 5318 inclusive, 5320 through 5328 inclusive, 5331 through 5349 inclusive, 5351 through 5367 inclusive, 5369 through 5408 inclusive, 5410, 5412 through 5426 inclusive, 5428 through 5438 inclusive, 5440 through 5489 inclusive, 5491 through 5498 inclusive, 5500 through 5517 inclusive, 5519 through 5522 inclusive, and 5524 through 5665 inclusive.
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2B16 (CL-604 Variant) airplanes. This AD was prompted by reports of the air-driven generator (ADG) failing to provide power during operational/function checks due to wires in the ADG power feeder cables being damaged. The damage was due to galvanic corrosion and inadequate silver-plating. This AD requires replacing ADG power feeder cables. We are issuing this AD to prevent galvanic corrosion on ADG power feeder cables, which could result in damage to the cable and consequently the cable may not be able to provide emergency electrical power to the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 72 months after the effective date of this AD, replace the ADG power feeder cable, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 604-24-024, dated January 31, 2011.
