Thu, Mar 21, 2013
AD NUMBER: 2013-05-23
PRODUCT: Eurocopter France (Eurocopter) Model AS332C, L, and L1 helicopters to require a one-time inspection of the main rotor head (MRH) swash-plate upper bearing (bearing) for a non-smooth point (friction point).
SUBJECT: Airworthiness Directive 2013-05-23
ACTION: Final Rule
SUMMARY: This AD was prompted by a report of the premature deterioration of the MRH bearing of the rotating star installed on a Model AS332L1 helicopter. The actions of this AD are intended to detect deterioration of the MRH bearing and to prevent overloading the scissor links which drive the main rotor system, failure of the scissors links, and subsequent loss of control of the helicopter.
DATES: This AD is effective April 24, 2013.
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