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AD/BELL 427/11 - Flight Control Bearings
Bell Helicopter Textron 427 Series HelicBell Helicopter Textron 427 Series Helicopters
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Bell Helicopter Textron 427 Series Helicopters
| AD/BELL 427/11 | Flight Control Bearings | 10/2009 TX |
|---|
| Applicability: | Bell Helicopter Textron Canada (BHTC) 427 Helicopters Serial number 56001 through 56073, 58001 and 58002. |
|---|---|
| Requirement: | Perform a one-time inspection and, if required, rectification of the affected parts as per Accomplishment Instructions of BHTC Alert Service Bulletin 427-09-25 dated7 April 2009, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada.Note: Transport Canada AD CF-2009-32 dated 24 July 2009 refers. |
| Compliance: | Within the next 10 flight hours, but not later than 30 calendar days from the effective day of this AD, unless already accomplished. |
| This Airworthiness Directive becomes effective on 14 August 2009. | |
| Background: | It has been determined that some bearings may not have been staked as required. Consequently, the functionality of affected parts may be limited. This situation, if not corrected, could lead to loss of control of the helicopter.BHTC Operational Safety Notice OSN GEN-09-38 dated 7 April 2009 provides further information on this subject. |
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James Coyne
Delegate of the Civil Aviation Safety Authority
12 August 2009