THE PILOT EXPERIENCED A SUDDEN YAW IN THE HELICOPTER AT CRUISE FLIGHT. THE NG STARTED WINDING DOWN CONFIRMING AN ENGINE FAILURE. THE PILOT HAD TO EXTEND AN AUTOROTATION OVER A TREE LINE, WHICH CAUSED THE RPM TO DECREASE, AND MADE A HARD LANDING IN AN ADJACENT FIELD. DAMAGE TO THE HELICOPTER INCLUDED THE TAIL SECTION, LANDING GEAR AND MAIN ROTOR. INSPECTION OF THE ENGINE REVEALED THAT BOTH THE…
THE MAIN ROTOR BLADES SEPARATED THE TAIL BOOM DURING A FORCED LANDING FOLLOWING A TOTAL LOSS OF POWER. THE PLT STATED THE ACFT WAS EQUIPPED WITH AN EXPERIMENTAL ENGINE TORQUE AND TEMPERATURE LIMITING DEVICE AND THIS FLT WAS TO COLLECT DATA CONCERNING ITS OPERATION. THIS DEVICE MALFUNCTIONED AND AN UNCOMMANDED ENGINE SHUTDOWN OCCURRED AT 800 FT AGL. THE ACFT LANDED HARD ON THE SKID HEEL, ROCKED…
These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
No ADs published since 1998 matched this airframe or engine model.
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
Service Difficulty Reports (0)
No Service Difficulty Reports found for this airframe since 1995.