TP 7245E 1 of 1
AD Number: CF
- 201 4
- 44 Issue Date: 9 December 201 4 

# 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 invalida te the flight authorization of the aircraft. Alternative means of compliance shall be applied for in accordanc e 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 C anada, Ottawa, telephone 613 952

- 4357. Number: CF

- 201 4

- 44 Effective Date: 23 December 2 0 1 4
ATA: 27 Type Certificate: A

- 131 Subject : Flight Controls

– Elevator Control System

– Disconnect Applicability: Bombardier Inc. Model CL

- 600

- 2C10 aeroplanes, serial numbers 10002 through 10337, Models CL

- 600

- 2D15 and CL

- 600

- 2D24 aeroplanes, serial numbers 15001 through 15298. Compliance: Within 9200 hours air time or 5 years, whichever occurs first, from the effective date of this AD, un less already accomplished. Background: During an engineering review of the Elevator Control system, it was discovered that a disconnect between the elevator lever and control rod could lead to uncommanded elevator movement of the associated control surface . This uncommanded movement may cause a large difference between the position of the left and the right elevator control surface resulting in reduced controllability of the aeroplane and degradation of the structural integrity of the horizontal stabilizer. This AD mandates the replacement of the existing elevator lever assemblies and control rods with newly designed ones, which will prevent a disconnect between the components of the elevator control system should a failure occur.
Corrective Actions:
Remove and replace the left and the right fixed control rods and lever assemblies of the elevator control system with the new design. Bombardier Aerospace (BA) Service Bulletin (SB) 670BA

- 27

- 062, Revision B, dated 10 October 2014, or later revisions approved by t he Chief, Continuing Airworthiness, Transport Canada, provides approved instructions for replacing the fixed control rods and lever assemblies of the elevator control system

. Bombardier Aerospace SB 670BA

- 27

- 062, Initial Issue, dated 12 December 2013, or Revision A, dated 1 April 2014, also provides approved instructions for replacing the fixed control rods and lever assemblies of the elevator control system.
Authorization: For the Minister of Tra nsport,
ORIGINAL SIGNED BY Derek Ferguson Chief, Continuing Airworthiness
Contact: Gordanko Jeremic , 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. For all changes to your mailing address, contact your TC Regional Aircraft Registration Office at 1

- 800

- 30 5

- 2059, option 1 for English, 2 for Aircraft Registration and then select the appropriate region. 24

- 0022 (01

- 2005)