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**  (CA R) 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 requiremen ts 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 (AA RDG), National Aircraft Certification Branch, Transport Canada, Ottawa, telephone 613 952

- 4357. 1 / 2 No

. CF - 201 4 - 18 Issue Date 19 June 2014

Number: CF - 20 1 4 - 18
ATA: 32 Type Certificate: A - 142 Subject: Main Landing Gear
– Improperly Stowed Parking Brake Hand Pump Lever in Right Hand Side Nacelle
Effective: 3 July 2014 Applicability: Bombardier Inc. model DHC - 8 - 400, - 401 and - 402 a eroplane s , s erial n umbers 4001 through 4419. Compliance: Within 3000 hours air time or 18 months, whichever occurs first, from the effective date of this AD, unless already accomplished. Background: There has been one (1) reported in

- service incident where the main landing gear (MLG) parking brake hand pump lever was not properly secured in the right hand (RH) side nacelle and became dislodged from its mounting bracket. During extension of the MLG, the unsecured lever shifted causing a fouling condition with the nac e lle and subsequently puncturing the nacelle structure. An investigation reve aled that the safety restraint pin used to securely stow the lever is susceptible to mishandling. An unsecure d parking brake hand pump lever could migrate from its stowed positio n and foul against the MLG , adversely affect ing the safe landing of the aeroplane.
This AD mandates the re moval of the MLG parking brake hand pump lever from the RH side nacelle

. Corrective Actions: I ncorporate Bombardier ModSum 4

- 11 3803 and remove the pa rking brake hand pump lever from the RH side nacelle . Bombardier Service Bulletin (SB) 84

- 32

- 118 , Initial Issue, dated 8 April 201 4 , or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada, provides approved instructions for in corporating ModSum 4

- 113 803

. Note: The parking brake hand pump lever may be re

- installed at the operator ’ s discretion, in the RH side equipment bay through the incorporation of ModSum 4

- 113804 in accordance with Bombardier SB 84

- 32

- 119.

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)No. N ° CF - 20 14 - 18 2 / 2
Incorporation of Bombardier ModSum 4

- 113723 , which removes the parking brake hand pump lever from the RH side nacelle and re

- installs the parking brake hand pump lever in the RH side equipment bay , also satisfies the requirements of this AD. Bombardier SB s 84

- 32

- 99, Initia l Issue and Revision A , dated 26 January 2012 and 2 October 2012 respectively, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada, provide approved instructions for incorporating ModSum 4

- 113723.
Authorization: For the Mi nister of Transport,


### ORIGINAL SIGNED BY Derek Ferguson Chief, Continuing Airworthiness
Contact: Robert Farinas , Continuing Airworthiness, Ottawa, telephone 613

- 952

- 4357, facsimile 613

- 996

- 9178 or e

- mail AD

- CN@tc.gc.ca or any Transport Canada Centre.