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 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 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

2 4-0022 ( 01-2005 ) 1/2 No

. CF-2012-13 Issue Date 10 April 2012

Number: CF-2012-13 Subject: Revised Airworthiness Limitations Tasks
Effective: 23 April 2012 Applicability: Bombardier Inc. Aeroplane Model CL-600-2B19, Serial Numbers 7003 and subsequent. Compliance: As indicated below, unless already accomplished. Background: A revision has been made to Part 2 of the Canadair Regional Jet Maintenance Requirements Manual (MRM), Airworthiness Limitations (AWL), to introduce more stringent inspection requirements for cont inued airworthiness based on re-analysis, in-service data and/or fatigue testing. Failure to comply with these revised AWL items could lead to an unsafe condition.
This AD is issued to ensure that fati gue cracking of these affected components is detected and corrected.
Corrective Actions: A. Within 60 days from the effective date of this AD, amend the Transport Canada approved maintenance schedule by incor porating the following AWL tasks: Note: It is acceptable to use any one of the MRM Revision(s) or Temporary Revision(s) (TR) listed for each corresponding AWL task. AWL Task Acceptable MRM Revision(s) or TR Number(s) Date of Issue

52-11-131 Revision 8 10 December 2009 TR 2B-2127 9 October 2007 53-11-122 TR 2B-2168 14 January 2011 Revision 8 10 December 2009 Revision 7 10 May 2007 TR 2B-2119 14 February 2006 53-21-118 Revision 8 10 December 2009 TR 2B-2129 14 February 2008 53-21-129 Revision 8 10 December 2009 TR 2B-2128 9 October 2007No. N ° CF-2012-13 2/2

53-41-199 TR 2B-2198 8 December 2011 Revision 8 10 December 2009 Revision 7 10 May 2007 TR 2B-2123 28 August 2006 53-41-200 Revision 8 10 December 2009 Revision 7 10 May 2007 TR 2B-2123 28 August 2006 53-41-201 Revision 8 10 December 2009 Revision 7 10 May 2007 TR 2B-2123 28 August 2006 53-61-156 TR 2B-2174 14 January 2011 Revision 8 10 December 2009 TR 2B-2148 12 January 2009 54-10-105 Revision 8 10 December 2009 TR 2B-2133 14 February 2008 54-10-106 Revision 8 10 December 2009 TR 2B-2133 14 February 2008 57-21-105 Revision 8 10 December 2009 Revision 7 10 May 2007 Revision 6 2 December 2005 TR 2B-2110 24 November 2005 57-21-112 Revision 8 10 December 2009 Revision 7 10 May 2007 Revision 6 2 December 2005 TR 2B-2098 24 November 2005 B. Initial compliance with the AWL tasks lis ted above shall be carried out in accordance with the phase-in schedule as detailed in any corresponding MRM Revision or Temporary Revision. Compliance in accordance with superseding Tem porary Revisions or later revisions of the Airworthiness Limitations section of t he MRM, approved by Transport Canada, also satisfies the requirement s of this directive.
Authorization: For the Minister of Transport, Infrastructure and Communities 

### ORIGINAL SIGNED BY Derek Ferguson Chief, Continuing Airworthiness
Contact: Mr. Robert Farinas, Continuing Airworthi ness, Ottawa, telephone 613-952-4357, facsimile 613-996-9178 or e-mail CAWWEBFeedback@tc.gc.ca or any Transport Canada Centre.