AD NUMBER: PL2003-14-51 MANUFACTURER: MDHC SUBJECT: Airworthiness Directive PL2003-14-51
SUMMARY: This superseding Emergency Airworthiness
Directive (EAD) is prompted by two instances of failure of a
main rotor blade retention bolt (bolt) and
subsequent new information as a result of the investigation. The
failure of these bolts creates an unsafe condition that, if not
corrected, could result in loss of a main rotor blade and
subsequent loss of control of the helicopter.