Airworthiness directives › 2007-23-17
AD 2007-23-17 Airworthiness Directives; Bell Helicopter Textron Canada Model 206A and 206B Helicopters
Models named: 206A, 206B. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Model 206A and 206B helicopters, up to and including serial number 3216, with a main rotor latch bolt, part number 206-010-169-001, 206-010-169-003, or 206-011-122-003, certificated in any category. Reason (d) The mandatory continued airworthiness information (MCAI) states: Reevaluation of the structural analysis indicates the need for the removal from service of bolts in this application. The removal of certain main rotor latch bolts is required because these bolts do not have a mandatory retirement life. Further evaluation has shown that these bolts fail prematurely due to fatigue. This fatigue failure may result in failure of the main rotor and subsequent loss of the helicopter.
Compliance
Within 30 days, remove from service each main rotor latch bolt that has a P/N that is included in the applicability of this AD and replace it with an airworthy bolt. Differences Between the FAA AD and the MCAI (f) None.
Required actions
Within 30 days, remove from service each main rotor latch bolt that has a P/N that is included in the applicability of this AD and replace it with an airworthy bolt. Differences Between the FAA AD and the MCAI (f) None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1