AD #: 2004-01-51
This Emergency Airworthiness Directive (AD) is prompted by
a report of a main gearbox freewheel unit slippage, resulting in an
engine overspeed and shut down, which occurred during the
single-engine phase of an acceptance flight. This condition, if not
corrected, could result in an engine overspeed, an engine shut
down, and subsequent loss of control of the helicopter. The FAA has
reviewed Eurocopter France (Eurocopter) Alert Telex No. 63.00.21
R1, dated December 19, 2003, which describes procedures for
contacting the manufacturer and cleaning the bevel reduction gear
pending the results of an ongoing investigation.
The Direction Generale De L’Aviation Civile (DGAC), the
airworthiness authority for
France, notified the FAA that a