CTHIn ForceLegislation
AD/BELL 206/168 - Upper Left Hand Tailboom Attachment
Bell Helicopter Textron Canada (BHTC) 20Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters
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Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters
| AD/BELL 206/168 | Upper Left Hand Tailboom Attachment | 6/2007 |
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| Applicability: | Model 206A, 206B, 206L, 206L-1, 206L-3, and 206L-4 helicopters. |
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| Requirement: | 1. Determine if the upper left hand tailboom attachment fitting is a CRES steel fitting, part number 407-030-750-103.If a CRES fitting is installed, inspect the bolt and, if required, correct the washer installation in accordance with Part I of Bell Helicopter Textron Canada Alert Service Bulletin 206-06-110 or 206L-06-140, as applicable; or later Transport Canada approved revisions.If replacement is necessary as a result of the bolt inspection, proceed as follows:2. Replace the upper left hand bolt in accordance with Part II of Bell Helicopter Textron Canada Alert Service Bulletin 206-06-110 or 206L-06-140, as applicable; or later Transport Canada approved revisions.3. Perform a torque check of the upper left hand tailboom attaching hardware in accordance with the applicable maintenance manual.Note: Transport Canada AD CF-2007-01 refers. |
| Compliance: | 1. Within 50 hours time in service after 10 May 2007, unless already accomplished.2. At the next scheduled 100-hour inspection or annual inspection, whichever occurs first; following accomplishment of Part I of the applicable Requirement document.3. At the next scheduled 100-hour inspection following bolt replacement. |
| This Airworthiness Directive becomes effective on 7 June 2007. |
| Background: | The manufacturer has determined that some helicopters that have a CRES steel fitting installed at the upper left hand location of the tailboom, may have an attachment bolt that does not meet the design criteria. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
24 April 2007