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 TP 7245E

 

AIRWORTHINESS DIRECTIVE

The following airworthiness directive (AD) may be applicable to an aircraft which our records indicate is registered in your name. 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 may 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 by the Continuing Airworthiness Division (AARDG), National Aircraft Certification Branch, Transport Canada, Ottawa, telephone 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 Communications 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 

24-0022 (01-2005)

1/2 No.

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 integrated 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 chafing of the IDG power cables. Chafed IDG 

power cables can generate high energy arcing, which 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 inspection and, if required, rectification of the IDG 

power cables and hydraulic line support bracket. 

Corrective 

Actions: 

Perform a detailed visual inspection for chafed IDG power cables and cracked or broken 

hydraulic line support bracket, and rectify as required, in accordance with the following 

applicable Bombardier Service 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 2014 
No.

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 Original 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 the requirements of this AD: SRPSA 27512,

SRPSA 30806, SRPSA 32727, SRPSA 32864, or SRPSA 33161. 

Accomplishment in accordance with the Original Issue of the applicable SB, dated 18 

September 2012, without additional modifications/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.