What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
The flight instructor was demostrating crosswind straight in autorotations with his student. The flight instructor started his flare at approximately mid field at 70 KTS.
During the flare to level off a large left pedal input was initiated by the instructor pilot to correct for a left crosswind gust.
The aircraft continued to float down runway in a level attitude. The instructor experienced several full left pedal inputs with a low RPM warning horn and continued down the remaining last third of the runway drifting right (wind 330/35011G14).
The flight instructor also experienced light to moderate wind shear. As the aircraft approached the last 1000 feet of runway at the approach end of runway 27 a gust of wind caused the aircraft to make a uncommanded climb gaining 30 feet AGL in altitude. The low RPM horn again sounded and the aircraft rapidly decended from 30 feet and continued to drift right.
The aircraft skids made light contact at the hold short line of runway 27 while still drifting right. The aircraft bounced several feet impacting the ground hard in the grassy area off the runway. The aircraft skidded to the left rolling over on the left side of the aircraft coming to rest. The aircraft sustained substantial damage. Both pilots evacuated aircraft with no injuries
As the FAA filed it
THE FLIGHT INSTRUCTOR WAS DEMOSTRATING CROSSWIND STRAIGHT IN AUTOROTATIONS WITH HIS STUDENT. THE FLIGHT INSTRUCTOR STARTED HIS FLARE AT APPROXIMATELY MID FIELD AT 70 KTS.
DURING THE FLARE TO LEVEL OFF A LARGE LEFT PEDAL INPUT WAS INITIATED BY THE INSTRUCTOR PILOT TO CORRECT FOR A LEFT CROSSWIND GUST.
THE AIRCRAFT CONTINUED TO FLOAT DOWN RUNWAY IN A LEVEL ATTITUDE. THE INSTRUCTOR EXPERIENCED SEVERAL FULL LEFT PEDAL INPUTS WITH A LOW RPM WARNING HORN AND CONTINUED DOWN THE REMAINING LAST THIRD OF THE RUNWAY DRIFTING RIGHT (WIND 330/35011G14).
THE FLIGHT INSTRUCTOR ALSO EXPERIENCED LIGHT TO MODERATE WIND SHEAR. AS THE AIRCRAFT APPROACHED THE LAST 1000 FEET OF RUNWAY AT THE APPROACH END OF RUNWAY 27 A GUST OF WIND CAUSED THE AIRCRAFT TO MAKE A UNCOMMANDED CLIMB GAINING 30 FEET AGL IN ALTITUDE. THE LOW RPM HORN AGAIN SOUNDED AND THE AIRCRAFT RAPIDLY DECENDED FROM 30 FEET AND CONTINUED TO DRIFT RIGHT.
THE AIRCRAFT SKIDS MADE LIGHT CONTACT AT THE HOLD SHORT LINE OF RUNWAY 27 WHILE STILL DRIFTING RIGHT. THE AIRCRAFT BOUNCED SEVERAL FEET IMPACTING THE GROUND HARD IN THE GRASSY AREA OFF THE RUNWAY. THE AIRCRAFT SKIDDED TO THE LEFT ROLLING OVER ON THE LEFT SIDE OF THE AIRCRAFT COMING TO REST.THE AIRCRAFT SUSTAINED SUBSTANTIAL DAMAGE. BOTH PILOTS EVACUATED AIRCRAFT WITH NO INJURIES
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.