AD/Bell 407/32 Cyclic Control Lever Assembly Installation (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.
Bell Helicopter Textron Canada (BHTC) 407 Series Helicopters
| AD/BELL 407/32 | Cyclic Control Lever Assembly Installation | 5/2009 TX |
Applicability: | All Bell 407 helicopters. |
Requirement: | For helicopters with less than 50 flight hours in service or with a cyclic lever assembly installed within the last 50 flight hours: Perform a one time inspection and if required, rectification, of the cyclic lever assembly installation, in accordance with accomplishment instructions provided in Bell Alert Service bulletin 407-09-85, dated 10 March 2009 or later revisions approved by Transport Canada. Note: Transport Canada Airworthiness Directive CF-2009-10, dated |
Compliance: | Before further flight, unless already accomplished. |
| This Airworthiness Directive becomes effective on 13 March 2009. | |
Background: | An incorrectly installed bearing Part Number 206-301-051-101, in the co-pilot cyclic control lever assembly has been discovered during manufacturing. It is possible, that an incorrectly installed bearing could be found in any aircraft with cyclic control lever assembly recently installed. This condition, if not corrected, could lead to a loss of control of the helicopter. |
David Villiers
Delegate of the Civil Aviation Safety Authority
13 March 2009
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