PITTSBURGH, PA, USA
N2354
AEROSPATIALE SA316B
THE PILOT-IN-COMMAND LIFTED OFF THE HELIPAD VERTICALLY TO AN ALTITUDE OF 30 FEET AT WHICH TIME HE EXPERIENCED A POWER LOSS. HE BACKED UP THE HELICOPTER 20 FEET AND ALLOWED IT TO YAW TO THE RIGHT AS IT DESCENDED TO THE HELIPAD. HE LANDED ON THE HELIPAD HARD WITH LOW ROTOR RPM. INSPECTION OF THE ENGINE REVEALED THE GEAR AND SPLINE ASSEMBLY IN THE REDUCTION GEARBOX HAD STRIPPED THEREBY DISCONNECTING THE GEARBOX FROM THE TURBINE SECTION.
Source: NTSB Aviation Accident Database
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