Document ID: chunk:federal_register_of_legislation:F2009L00690:body:0:p1
Version: federal_register_of_legislation:F2009L00690
Segment Type: other
Provision Reference: 
Character Range: 0–3052

AIRWORTHINESS DIRECTIVE
On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/DHC-8/133 Amdt 1 and issues the following AD under subregulation 39.001(1) of CASR 1998.  The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes
AD/DHC-8/133 Amdt 2  Main Landing Gear System  4/2009 DM

Applicability:  Bombardier Inc. DHC-8 aircraft, Models 400, 401 and 402, serial numbers 4001, 4003, 4004, 4006, and 4008 through 4208.
Requirement:       1. General Visual Inspection of the Main Landing Gear System - Applicable to DHC-8 Aircraft, Models 400, 401, and 402, Serial Numbers 4001, 4003, 4004, 4006, 4008 through 4182.

                   Perform a general visual inspection of the left hand and right hand main landing gear system in accordance with Bombardier DHC-8 Series 400 Maintenance Requirements Manual (PSM 1-84-7), Part 1 (Maintenance Review Board Report), tasks Z700-03E (left hand) and Z700-04E (right hand) and rectify any discrepancy found.

                   2. General Visual Inspection of the Main Landing Gear Retract Actuator Jam Nut - Applicable to DHC-8 Aircraft, Models 400, 401, and 402, Serial Numbers 4001, 4003, 4004, 4006, 4008 through 4208.

                     a. Perform a general visual inspection of the left hand and right hand main landing gear retract actuator jam nut to ensure the wire lock is in place and the nut is secured.  If the wire lock is not in place or the jam nut is not secured, accomplish Bombardier Repair Drawing (RD) 8/4-32-059 Issue 5 or later approved revision.

                     b. Repeat the actions detailed in Requirement 2.a. of this AD.

                   3. Detailed Visual Inspection of the Main Landing Gear Retract Actuator - Applicable to DHC-8 Aircraft, Models 400, 401, and 402, Serial Numbers 4001, 4003, 4004, 4006, 4008 through 4182.

                     a. Perform a detailed visual inspection and any required action(s) in accordance with Bombardier RD 8/4-32-059 Issue 5 or later approved revision.

                     b. Repeat the actions detailed in Requirement 3.a. of this AD.

                Respective inspections performed in accordance with earlier issues of RD 8/4-32-059 satisfy the actions detailed in Requirements 2 and 3 of this AD.

   If the visual inspection of the piston (p/n 46570-1/-3) threads and thread relief area for evidence of corrosion in accordance with RD 8/4-32-059 Rev. NC was performed without using borescope or 10X magnification mirror,