FREDERICK, MD, USA
N2346P
ROBINSON R-22B
THE PILOT REPORTED HE WAS ATTEMPTING A TAKEOFF FROM A DOLLY WHEN THE ACCIDENT OCCURRED. ACCORDING TO THE FAA INSPECTOR THE PILOT REPORTED THAT DURING INITIAL LIFTOFF, WHEN HE APPLIED THE COLLECTIVE AND RAISED THE HELICOPTER TO HOVER, THE ROTOR RPM BLED OFF AND THE HELICOPTER SETTLED BACK ON THE DOLLY. HE FURTHER STATED THAT WHEN HE TRIED TO LIFT OFF AGAIN, THE HELICOPTER ROLLED OVER. THE FAA EXAMINED THE AIRCRAFT AFTER THE ACCIDENT AND IT WAS REVEALED THAT THE SKID HOOKED ONTO THE DOLLY AS THE PILOT APPLIED POWER. THERE WAS NO EVIDENCE OF MECHANICAL MALFUNCTION NOTED.
On March 11, 1995, at 0730 eastern standard time, N2346P, a Robinson R-22B helicopter, owned and operated by Advanced Helicopter Concepts Inc. of Frederick, Maryland, crashed during takeoff at Frederick Municipal Airport, Frederick, Maryland. Visual meteorological conditions prevailed and a flight plan was not filed. The certificated private pilot, the sole occupant, was not injured. The helicopter sustained substantial damage. The local, personal flight was conducted under 14 CFR 91. According to an FAA Aviation Safety Inspector, the pilot was attempting to liftoff from a dolly when the left skid hooked onto the dolly and rolled over. The pilot reported to the FAA that he completed his preflight inspection and engine run-up check successfully. The pilot stated the helicopter lifted off once, but there was a loss of rotor RPM and the helicopter settled back onto the platform. When the pilot added power to attempt a second takeoff, the helicopter skid was hooked on the dolly and the helicopter rolled onto the asphalt field. An FAA Aviation Safety Inspector examined the helicopter at the accident site. The examination revealed that the main rotor blades contacted the asphalt field separating sections of the blades. The examination did not reveal evidence of preimpact mechanical malfunction.
the helicopter pilot's inadequate control of the aircraft during the attempted takeoff.
Source: NTSB Aviation Accident Database
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