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 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.

1/1 No.

CF-2014-16

Issue Date

11 June 2014

Number: CF-2014-16

ATA: 32 Type Certificate: A-131

Subject: Landing Gear - Alternate Extension System (AES) – Incorporation of New

Certification Maintenance Requirement 

Effective: 25 June 2014

Applicability: Bombardier Inc. model CL-600-2E25 aeroplanes, serial number 19002 and 

subsequent.

Compliance: Within 30 days from the effective date of this AD, unless already accomplished.

Background: During a design review, an error was identified which led to the development of a new

certification maintenance requirement (CMR) task. Without an effective maintenance task 

to maintain the aeroplane’s inherent level of safety, there is a potential that a dormant 

failure of the alternate release system of the landing gear could occur. Failure of the 

landing gear alternate release system could prevent the landing gear from extending in 

the case of a failure of the normal landing gear extension system. 

This AD mandates the incorporation of a new maintenance task to ensure operation of 

the landing gear alternate extension system.

Corrective 

Actions:

A. Amend the Transport Canada approved maintenance schedule by incorporating task 

number 32-01-00-101 – Operational Check of the MLG and NLG AES EMA and 

Release Mechanism (CRJ1000), as introduced by Temporary Revision (TR) ALI-0472 

of the Maintenance Requirements Manual, CSP B-053, Part 2, dated 

27 February 2014.

Note: MLG – Main Landing Gear

NLG – Nose Landing Gear

EMA – Electro-mechanical Actuator

Compliance with superseding Temporary Revision (TR) or later revisions of the 

above-mentioned Maintenance Requirements Manual approved by Transport Canada 

also meets the requirements of this AD.

B. Phase-in for aeroplanes that have accumulated 540 hours air time or more as of the 

effective date of this AD: within 660 hours air time from the effective date of this AD, 

perform initial operational check 32-01-00-101.

Authorization: For the Minister of Transport,

ORIGINAL SIGNED BY

Derek Ferguson

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.

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)