What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) N56MU, R-22-alpha, while doing hover work over whiskey taxiway caught its skid in the high grass/dirt that resulted in a dynamic rollover at Bedford Hanscom airfield at 1228 EDT, 9/28/03. Two persons on board with no injuries reported. Damage to aircraft was reported as substantial. The CFI was giving flight instruction under part 91 to a student with approximately 4 hours of helicopter time. The student pilot does not have a medical or student pilot's certificate. The student pilot was hovering the helicopter near the ground when he unintentionally contacted the ground while moving in a sideways motion. This caused the helicopter to have a "dynamic rollover." There was substantial damage to the helicopter mast, blades, tail boom, tail rotor, skids, and glass cockpit area. privacy data omitted
As the FAA filed it
(-23) N56MU, R-22-ALPHA, WHILE DOING HOVER WORK OVER WHISKEY TAXIWAY CAUGHT ITS SKID IN THE HIGH GRASS/DIRT THAT RESULTED IN A DYNAMIC ROLLOVER AT BEDFORD HANSCOM AIRFIELD AT 1228 EDT, 9/28/03. TWO PERSONS ON BOARD WITH NO INJURIES REPORTED. DAMAGE TO AIRCRAFT WAS REPORTED AS SUBSTANTIAL. THE CFI WAS GIVING FLIGHT INSTRUCTION UNDER PART 91 TO A STUDENT WITH APPROXIMATELY 4 HOURS OF HELICOPTER TIME. THE STUDENT PILOT DOES NOT HAVE A MEDICAL OR STUDENT PILOT'S CERTIFICATE. THE STUDENT PILOT WAS HOVERING THE HELICOPTER NEAR THE GROUND WHEN HE UNINTENTIONALLY CONTACTED THE GROUND WHILE MOVING IN A SIDEWAYS MOTION. THIS CAUSED THE HELICOPTER TO HAVE A "DYNAMIC ROLLOVER." THERE WAS SUBSTANTIAL DAMAGE TO THE HELICOPTER MAST, BLADES, TAIL BOOM, TAIL ROTOR, SKIDS, AND GLASS COCKPIT AREA. ^PRIVACY DATA OMITTED^
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.