20250906012849A

Accident · Substantial damage

FAA accident report · Robinson Helicopter R66 · Lakeville, MN · September 6, 2025

Date
September 6, 2025 · 14:42 local
Place
Lakeville, MN
Airport
Airlake
Phase of flight
Descent
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N6633L
NTSB investigation
NTSBCEN25FA367
Reported as
Robinson Helicopter R66
Reported engine
Rolls-Royce 250-C300/A1
People aboard
2
Fatal injuries
2
Other injuries
0
Pilot’s certificate
Commercial pilot
Pilot’s flight hours
5,174 total40 in this make and model40 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

The pilot refueled with a 25-gallon top-off before the flights for the day. The helicopter was flying back to its originating airport when the pilot chose an enroute airport as a location to land to let a weather system pass. Three hundred feet into the helicopter’s descent to the airport through cloudy IFR conditions, the aircraft banked right and accelerated downward in a clockwise rotation, altering its course from approximately 130 degrees to 40 degrees. The aircraft’s main rotor blades contacted the ground at the edge of a cornfield, breaking apart and sending blade spar and privacy data omitted as FAR as 1,000 feet to the end of the runway. The passenger was ejected from the aircraft upon crashingprivacy data omitted. The pilot remained in the cockpit as the fuselage hit the ground nose-first, rolled on its left side and slid across one set of railroad tracks, and coming to rest against a parked train car. A fire developed that consumed the fuselage but spared the engine, rotor mast, tail boom, and tail rotor. Investigators from Robinson and rolls-royce found no mechanical defects evident prior to the crash pertaining to the surviving turbine engine, mast assembly, tail boom, or tail rotor.

As the FAA filed it

THE PILOT REFUELED WITH A 25-GALLON TOP-OFF BEFORE THE FLIGHTS FOR THE DAY. THE HELICOPTER WAS FLYING BACK TO ITS ORIGINATING AIRPORT WHEN THE PILOT CHOSE AN ENROUTE AIRPORT AS A LOCATION TO LAND TO LET A WEATHER SYSTEM PASS. THREE HUNDRED FEET INTO THE HELICOPTER’S DESCENT TO THE AIRPORT THROUGH CLOUDY IFR CONDITIONS, THE AIRCRAFT BANKED RIGHT AND ACCELERATED DOWNWARD IN A CLOCKWISE ROTATION, ALTERING ITS COURSE FROM APPROXIMATELY 130 DEGREES TO 40 DEGREES. THE AIRCRAFT’S MAIN ROTOR BLADES CONTACTED THE GROUND AT THE EDGE OF A CORNFIELD, BREAKING APART AND SENDING BLADE SPAR AND ^PRIVACY DATA OMITTED^ AS FAR AS 1,000 FEET TO THE END OF THE RUNWAY. THE PASSENGER WAS EJECTED FROM THE AIRCRAFT UPON CRASHING^PRIVACY DATA OMITTED^. THE PILOT REMAINED IN THE COCKPIT AS THE FUSELAGE HIT THE GROUND NOSE-FIRST, ROLLED ON ITS LEFT SIDE AND SLID ACROSS ONE SET OF RAILROAD TRACKS, AND COMING TO REST AGAINST A PARKED TRAIN CAR. A FIRE DEVELOPED THAT CONSUMED THE FUSELAGE BUT SPARED THE ENGINE, ROTOR MAST, TAIL BOOM, AND TAIL ROTOR. INVESTIGATORS FROM ROBINSON AND ROLLS-ROYCE FOUND NO MECHANICAL DEFECTS EVIDENT PRIOR TO THE CRASH PERTAINING TO THE SURVIVING TURBINE ENGINE, MAST ASSEMBLY, TAIL BOOM, OR TAIL ROTOR.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.