N2831B – BELL 47H-1 – 1994-06-04 NTSB Accident Report

On June 04, 1994, a Bell 47H-1 (N2831B) was involved in an incident near Tulsa, OK. All 2 people aboard were uninjured. The aircraft sustained substantial damage.

The National Transportation Safety Board determined the probable cause of this incident to be: THE PILOT'S FAILURE TO MAINTAIN ROTOR RPM, HIS DELAYED LANDING FLARE, AND THE IMPROPER TOUCHDOWN.

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.

This incident is documented in NTSB report FTW94LA193. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N2831B.