What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Pilot landed the helicopter from a hovering autorotation on the turf runway 18 at East Troy Municipal Airport (57C) at the conclusion of a maintenance check flight. Pilot and witness report helicopter skids being on the runway with zero groundspeed and constant heading following the landing. From the landed position pilot reports left skid rising, control correction being applied, and helicopter teetering on right skid prior rolling-over to its right. Pilot performed emergency shut-down and exited the helicopter uninjured. A wind gust of 32 knots was recorded on the AWOS-3 at the burlington municipal airport (buu) approximately 4 NM sw of 57C approximately nine(9) minutes prior to this accident.
As the FAA filed it
PILOT LANDED THE HELICOPTER FROM A HOVERING AUTOROTATION ON THE TURF RUNWAY 18 AT EAST TROY MUNICIPAL AIRPORT (57C) AT THE CONCLUSION OF A MAINTENANCE CHECK FLIGHT. PILOT AND WITNESS REPORT HELICOPTER SKIDS BEING ON THE RUNWAY WITH ZERO GROUNDSPEED AND CONSTANT HEADING FOLLOWING THE LANDING. FROM THE LANDED POSITION PILOT REPORTS LEFT SKID RISING, CONTROL CORRECTION BEING APPLIED, AND HELICOPTER TEETERING ON RIGHT SKID PRIOR ROLLING-OVER TO ITS RIGHT. PILOT PERFORMED EMERGENCY SHUT-DOWN AND EXITED THE HELICOPTER UNINJURED. A WIND GUST OF 32 KNOTS WAS RECORDED ON THE AWOS-3 AT THE BURLINGTON MUNICIPAL AIRPORT (BUU) APPROXIMATELY 4 NM SW OF 57C APPROXIMATELY NINE(9) MINUTES PRIOR TO THIS ACCIDENT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.