What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(.19) On January 22, 2000, at 0945 central standard time, a Robinson R-22B, N4047C, operated by ww helicopters LLC, of East Troy, Wisconsin, sustained substantial damage during an in-flight collision with terrain following a loss of control during takeoff from runway 18 (1,900 feet by 150 feet, snow-covered/grass) at the East Troy Municipal Airport, East Troy, Wisconsin. Visual meteorological conditions prevailed at the time of the accident. The instructional flight was conducted under the provisions of 14 CFR part 91 and was not on a flight plan. The certified flight instructor (CFI) received minor injuries. The dual student reported no injuries. The local flight was departing at the time of the accident. According to the cfi's written statement, they were practicing a running takeoff on runway 18 and after traversing approximately ten feet of the takeoff run the student applied right pedal input. The cft stated that he tried to overcome the student's right pedal input by depressing the left pedal input and verbally commanding the student to do the same. The CFR reported that he was unable to counteract the students control input and the aircraft yawed to the right. The helicopter's left skid impacted the terrain, the aircraft rolled onto its left side, and slid for 15-feet before coming to rest. (-23) CFI stated that he was instructing student in a running takeoff. The student applied right pedal, and the CFI was unable to overcome the student's input. The helicopter then yawed right, and the left skid caught on the runway, causing the helicopter to roll onto it's left side.
As the FAA filed it
(.19) ON JANUARY 22, 2000, AT 0945 CENTRAL STANDARD TIME, A ROBINSON R-22B, N4047C, OPERATED BY WW HELICOPTERS LLC, OF EAST TROY, WISCONSIN, SUSTAINED SUBSTANTIAL DAMAGE DURING AN IN-FLIGHT COLLISION WITH TERRAIN FOLLOWING A LOSS OF CONTROL DURING TAKEOFF FROM RUNWAY 18 (1,900 FEET BY 150 FEET, SNOW-COVERED/GRASS) AT THE EAST TROY MUNICIPAL AIRPORT, EAST TROY, WISCONSIN. VISUAL METEOROLOGICAL CONDITIONS PREVAILED AT THE TIME OF THE ACCIDENT. THE INSTRUCTIONAL FLIGHT WAS CONDUCTED UNDER THE PROVISIONS OF 14 CFR PART 91 AND WAS NOT ON A FLIGHT PLAN. THE CERTIFIED FLIGHT INSTRUCTOR (CFI) RECEIVED MINOR INJURIES. THE DUAL STUDENT REPORTED NO INJURIES. THE LOCAL FLIGHT WAS DEPARTING AT THE TIME OF THE ACCIDENT. ACCORDING TO THE CFI'S WRITTEN STATEMENT, THEY WERE PRACTICING A RUNNING TAKEOFF ON RUNWAY 18 AND AFTER TRAVERSING APPROXIMATELY TEN FEET OF THE TAKEOFF RUN THE STUDENT APPLIED RIGHT PEDAL INPUT. THE CFT STATED THAT HE TRIED TO OVERCOME THE STUDENT'S RIGHT PEDAL INPUT BY DEPRESSING THE LEFT PEDAL INPUT AND VERBALLY COMMANDING THE STUDENT TO DO THE SAME. THE CFR REPORTED THAT HE WAS UNABLE TO COUNTERACT THE STUDENTS CONTROL INPUT AND THE AIRCRAFT YAWED TO THE RIGHT. THE HELICOPTER'S LEFT SKID IMPACTED THE TERRAIN, THE AIRCRAFT ROLLED ONTO ITS LEFT SIDE, AND SLID FOR 15-FEET BEFORE COMING TO REST. (-23) CFI STATED THAT HE WAS INSTRUCTING STUDENT IN A RUNNING TAKEOFF. THE STUDENT APPLIED RIGHT PEDAL, AND THE CFI WAS UNABLE TO OVERCOME THE STUDENT'S INPUT. THE HELICOPTER THEN YAWED RIGHT, AND THE LEFT SKID CAUGHT ON THE RUNWAY, CAUSING THE HELICOPTER TO ROLL ONTO IT'S LEFT SIDE.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.