Transport Transports Canada Canada TP 7245E



# AIRWORTHINESS DIRECTIVE

The following airworthiness directive (AD) may be applicable to an aircraft which our records indicate is registered in your na me. ADs are issued pursuant to Canadian Aviation Regulation (CAR) 521 Division X . Pursuant to CAR 605.84 and the further details of CAR Standard 625, Appendix H , the continuing airworthiness of a Canadian registered aircraft is contingent upon compliance with all applicable ADs. Failure to comply with the requirements of an AD ma y invalidate the flight authorization of the aircraft. Alternative means of compliance shall be applied for in accordance with CAR 605.84 and the above-referenced Standard

. This AD has been issued b y the Continuin g Airworthiness Division ( AARDG ) , National Aircraft Certification Branch, Trans p ort Canada, Ottawa, tele p hone 613 952-4357.

Pursuant to CAR 202.51 the registered owner of a Canadian aircraft shall, within seven days, notify the Minister in writing of any change of his or her name or address. To request a change of address, contact the Civil Aviation Communicat ions Centre (AARC) at Place de Ville, Ottawa, Ontario K1A 0N8 , or 1-800-305-2059 , or www.tc.gc.ca/civilaviation/communications/centre/ address.asp
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. CF-2014-05 Issue Date 20 January 2014

Number: CF-2014-05 Subject: Integrated Drive Generator Wire Chafing in Aft Equipment Bay
Effective: 3 February 2014 Applicability: Bombardier Inc.: Model CL-600-2A12 (601 Variant) aeroplanes, serial numbers 3001 through 3066; Model CL-600-2B16 (601-3A/3R Variants) aeroplanes, serial numbers 5001 through 5194; Model CL-600-2B16 (604 Variant) aeroplanes, serial numbers 5301 through 5665, and 5701 through 5934. Compliance: Within 400 hours air time or 18 months , whichever occurs first, from the effective date of this AD, unless already accomplished. Background: There has been one reported case on the CL-600-2B19 aeroplane of an aft equipment bay fire occurring due to arcing of chafed in tegrated drive generator (IDG) power cables. Additionally, the hydraulic line support brackets located at the fuselage station (FS) 672 and FS 682 have been found broken in service on several CL-600-2B19 aeroplanes. A broken hydraulic line support bracket at FS 672 or FS 682 on a CL-600-2B19 aeroplane could result in inadequate clearance between the IDG power cables and hydraulic lines, potentially resulting in c hafing of the IDG power cables. Chafed IDG power cables can generate high energy arcing, wh ich can result in an uncontrolled fire in the aft equipment bay. It was found that a similar configuration exists on models CL-600-2A12 and CL-600-2B16 aeroplanes. Therefore, a similar unsafe condition exists. This AD mandates the detailed visual inspecti on and, if required, rect ification of the IDG power cables and hydrau lic line support bracket. Corrective Actions: Perform a detailed visual inspection for c hafed IDG power cables and cracked or broken hydraulic line support bracket, and rectify as required, in accordance with the following applicable Bombardier Serv ice Bulletins (SBs): Aeroplanes SB Date Model CL-600-2A12 (601 Variant), serial numbers 3001 through 3066 Model CL-600-2B16 (601-3A/3R Variants), serial numbers 5001 through 5194 601-0625, Rev 1 13 January 2014No. N ° CF-2014-05 2/2
Model CL-600-2B16 (604 Variant), serial numbers 5301 through 5665 604-24-026, Rev 1 13 January 2014 Model CL-600-2B16 (604 Variant), serial numbers 5701 through 5934 605-24-007, Rev 1 13 January 2014 Accomplishment in accordance with the Or iginal Issue of the applicable SB, dated 18 September 2012, in conjunction with any of the following Service Request for Product Support Action (SRPSA) does not meet t he requirements of this AD: SRPSA 27512, SRPSA 30806, SRPSA 32727, SRPSA 32864, or SRPSA 33161. Accomplishment in accordance with the Or iginal Issue of the applicable SB, dated 18 September 2012, without additional modificati ons/instructions provided by any of the above-mentioned SRPSAs, meets the requirements of this AD.
Authorization: For the Minister of Transport, ORIGINAL SIGNED BY Robin Lau Acting Chief, Continuing Airworthiness Contact: Helen Tsai, Continuing Airworthiness, Ottawa, telephone 613-952-4357, facsimile 613-996-9178 or e-mail AD-CN@tc.gc.ca or any Transport Canada Centre.