TULSA, OK, USA
N2831B
BELL 47H-1
A HELICOPTER PRIVATE PILOT LANDED HARD DURING THE SIXTH PRACTICE AUTOROTATION OF THE DAY. THE LANDING FLARE WAS DELAYED AND THE MAIN ROTOR RPM DECAYED TO THE POINT THAT DURING TOUCHDOWN, THE MAIN ROTOR BLADES FLEXED DOWN AND IMPACTED THE TAILBOOM.
On June 4, 1994, at 0900 central daylight time, a Bell 47H-1 helicopter, N2831B, was substantially damaged while landing near Tulsa, Oklahoma. The private pilot and his pilot rated passenger were not injured. Visual meteorological conditions prevailed for the personal flight. The pilot told the Federal Aviation Administration (FAA) inspector that during the sixth practice autorotation being performed to an open field adjacent to the Downtown Airport, the rotor RPM decayed and the helicopter landed hard. The main rotor blades flexed down and chopped the tailboom.
THE PILOT'S FAILURE TO MAINTAIN ROTOR RPM, HIS DELAYED LANDING FLARE, AND THE IMPROPER TOUCHDOWN.
Source: NTSB Aviation Accident Database
Aviation Accidents App
In-Depth Access to Aviation Accident Reports
