Airworthiness directives › 2007-22-01
AD 2007-22-01 Airworthiness Directives; Bell Helicopter Textron Canada Model 206A and 206B Series Helicopters
Models named: 206A, 206B series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Bell Helicopter Textron Canada (BHTC) Model 206A and 206B series helicopters, certificated in any category, that have the following serial numbered transmission pylon support spindle (spindle), part number (P/N) 206-031-554, installed: Spindles repaired by Cadorath Aerospace Inc., B12-11568, B12-12244, B12-12260, B12-12647, B12-12676, B12-12847, B12-13292, B12-14395, B12-15750, B12-17149, B12-17266, B12-1828, B12-18649, B12-19330, B12-19381, B12-20668, B12-2224, B12-2286, B12-3595, B12-3774, B12-3808, B12-5171, B12-757, B12-8053, B12-8605, B12-932, B-21223, B-21297, B22005, B22515, B-22558, CAI3852, CAI3853, EA287, EA318, EA322, EA393, EA751, EA-761, MW546, RE1044, RE113, or RE743. Spindles repaired by H-S Tools & Parts Inc., B12-11127, B12-12883, B12-13158, B12-13535, B12-13545, B12-13593, B12-13657, B12-13716, B12-14061, B12-14078, B12-15131, B12-15908, B12-16078, B120-16267, B12-16825, B12-16867, B12-17149, B12-17266, B12-18157, B12-18163, 12-18456, B12-19450, B12-21573, B12-3106, B12-605, B12-7627, B-22385, EA-391, MW445, MW506, MW546, RE278, RE329, or RE582. Reason (d) The mandatory continued airworthiness information (MCAI) states: Transportation Safety Board of Canada (TSB) investigation into an accident involving Model 206B has revealed that the Spindle repaired by Cadorath Aerospace Inc., failed during flight resulting in loss of control of the helicopter. A similar repair was performed by H-S Tools & Parts Inc. All serial-numbered spindles that were repaired by Cadorath Aerospace, Inc., and by H-S Tools & Parts, Inc., have reduced strength which could result in failure of the spindle and create an unsafe condition.
Compliance
Within the next 16 hours time-in-service, unless already done, replace the spindle with an airworthy spindle that does not contain a serial number listed in the applicability of this AD. Differences Between FAA AD and the MCAI (f) None.
Required actions
Within the next 16 hours time-in-service, unless already done, replace the spindle with an airworthy spindle that does not contain a serial number listed in the applicability of this AD. Differences Between 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