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 ma y 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 Communica tions 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-2010-38R2

Issue Date 17 March 2011

Number: CF-2010-38R2

Subject: Cracking of the Emergency Water Dump Pulley Support Bracket and Structure

Effective: 30 March 2011

Revision: Supersedes Airworthiness Directive CF-2010-38R1

Applicability: The following Bombardier Inc. aeroplane models:
CL-215-1A10 - Serial Numbers 1051 through 1125, CL-215-6B11 (CL-215T) - Serial Numbers 1056 through 1125, CL-215-6B11 (CL-415) - Serial Numbers 2001 through 2085.

Compliance: No later than 01 June 2011, unless already accomplished.

Background: The emergency water dump pulley support bracket assembly, Part Number (P/N) 215-94711-2, has been found cracked or broken on a number of aeroplanes. Failure of the emergency water dump pulley support bracket assembly in combination with other system failures such as an engine failure during take off or pitch control system jam, may result in a loss of control of the aeroplane.

Revision 2 of this AD is issued to ensure that terminating action for this AD is carried out prior to the 2011 fire season.

Corrective Actions: Part I - Inspection

Within 50 flight cycles after the effective date of this directive, inspect the emergency water dump pulley support bracket assembly and the aeroplane structure where the bracket assembly is installed, in a ccordance with paragraph 2.A of the applicable Bombardier Alert Service Bulle tin (ASB) listed below, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada.

Replace parts in accordance with paragraph 2.A of the applicable Bombardier ASB listed below, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada.
Thereafter, at intervals not exceeding 100 f light cycles, inspect the emergency water dump pulley support bracket assembly and r eplace parts in accordance with paragraph 2.A.(6)(b) of the applicable ASB listed below, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada.No. N ° CF-2010-38R2 2/2

Part II - Terminating Action
No later than 01 June 2011 and in accordance with paragraph 2.B. of the applicable Bombardier ASB listed in Part I, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada:

A. Inspect stiffeners P/N 215-94711-6 and 215- 94711-8 for cracks, deformation or signs of corrosion. If any of the above conditi ons are found, replace damaged stiffeners prior to further flight.
B. Re-install the emergency water dump pulle y support bracket assembly using radius packers. Model Alert Service Bulletin CL-215-1A10, CL-215-6B11 (CL-215T) 215-A543, Rev. 1, dated 23 June 2010 CL-215-6B11 (CL-415) 215-A4424, Rev. 2, dated 23 June 2010

Authorization: For the Minister of Transport, Infrastructure and Communities

ORIGINAL SIGNED BY

Robin Lau for Derek Ferguson Chief, Continuing Airworthiness

Contact: Ms. Yosha Mendis, Continuing Airworthi ness, Ottawa, telephone 613-952-4357, facsimile 613-996-9178 or e-mail CAWWEBFeedback@tc.gc.ca or any Transport Canada Centre.