Airworthiness directives › 2008-10-01
AD 2008-10-01 Airworthiness Directives; Eurocopter France Model EC120B Helicopters
Models named: EC120B. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Model EC120B helicopters, with spherical thrust bearings, part number 7050A3622036, serial number LK0130, LK0142, LK0155, and LK0158, installed, certificated in any category. Reason (d) The mandatory continued airworthiness information (MCAI) states: This Airworthiness Directive (AD) follows upon the discovery of a batch of spherical thrust bearings which prove to be unfit for flight. This AD requires actions that are intended to address the unsafe condition caused by the manufacture of a batch of spherical thrust bearings that are not airworthy because they were not manufactured in accordance with approved type design. Failure of a spherical thrust bearing during flight could cause the main rotor (M/R) system to separate from the helicopter, which would be catastrophic.
Compliance
Before further flight, remove any spherical thrust bearing, part number 7050A3622036, serial numbers LK0130, LK0142, LK0155, or LK0158, and replace it with an airworthy spherical thrust bearing. Differences Between the FAA AD and the MCAI (f) None.
Required actions
Before further flight, remove any spherical thrust bearing, part number 7050A3622036, serial numbers LK0130, LK0142, LK0155, or LK0158, and replace it with an airworthy spherical thrust bearing. 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