Bombardier (Canadair) CL-600 (Challenger
Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes
Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes
| AD/CL-600/104 Amdt 1 | Inboard Flap Actuator | 3/2009 DM |
|---|
| Applicability: | Bombardier Inc. CL-600-2B19 aircraft. |
|---|---|
| Requirement: | Amend the Transport Canada approved maintenance schedule by incorporating the new inspection requirements of CMR Number C27-50-300-01, as introduced by Temporary Revision (TR) 2A-41 of Canadair Regional Jet Maintenance Requirements Manual (MRM), Appendix A, Certification Maintenance Requirements (CMR).Note: Transport Canada AD CF-2008-33R1 dated 9 January 2009 refers. |
| Compliance: | Within 30 days after the effective date of this AD.Initial compliance with the new CMR task shall be carried out within 500 flight hours after the effective date of this AD. |
| This Amendment becomes effective on 9 February 2009. | |
| Background: | During the acceptance test procedure of returned inboard flap actuators an excessive wear condition was identified regarding endplay between the flap actuator and ball screw. Excessive wear of the screw and ball nut could potentially lead to a flap system jam. A TR has been made to the Bombardier CL-600-2B19 Maintenance Requirements Manual Appendix A, CMR to ensure that unacceptable wear on the nut and ball screw is detected and corrected.This amendment reduces the initial compliance interval.The original issue of this AD became effective on 15 January 2009. |
View image in the official source
James Coyne
Delegate of the Civil Aviation Safety Authority
23 January 2009