AD/CL-600/106 - Auxiliary Fuel Tanks (Cth)

AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (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 (Canadair) CL-600 (Challenger) Series Aeroplanes AD/CL-600/106 Auxiliary Fuel Tanks 1/2009

Applicability: Bombardier CL-600-2B19 (Regional Jet Series 100 and 440) aeroplanes fitted with auxiliary fuel tanks as detailed in STC ST00365NY, ST00365NY-D (unless installed with Configuration 5). Requirement: 1. Submit a report to the Manager, Systems and New Technologies, Airworthiness Engineering Group CASA, Fax (02) 6217 1914.

The report must include the following information:

(a) The aeroplane registration and auxiliary tank STC number installed.

(b) The usage frequency in terms of total number of flights per year and total number of flights per year for which the auxiliary tank is used.

2. Deactivate the auxiliary fuel tanks, in accordance with a deactivation procedure approved by CASA. Any auxiliary tank component that remains on the aeroplane must be secured and must have no effect on the continued operational safety and airworthiness of the aeroplane. Deactivation must not result in the need for additional instructions for continued airworthiness.