CEN25FA367

NTSB accident investigation · Robinson Helicopter R66 · Lakeville, MN · September 6, 2025

Accident · FatalClass 3 · FieldPreliminary report
Date
September 6, 2025, 14:42 local (19:42 UTC)
Place
Lakeville, MN
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Unknown
Aircraft
N6633LRobinson Helicopter R66
Defining event
Unknown: Unknown or undetermined
Weather
Visual (VMC) · Day
Status
Investigation ongoing
Investigation class
Class 3
NTSB office
Central Region
Parties
Robinson Helicopter Company, Rolls-Royce, FAA FSDO
FAA report
20250906012849A
Case key
200949

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Preliminary report

What NTSB knew early in the investigation. It may change in the final report.

On September 6, 2025, about 1442 central daylight time, a Robinson Helicopter Company R66 helicopter, N6633L was destroyed when it was involved in an accident near Lakeville, Minnesota. The pilot and passenger were fatally injured. The helicopter was operated under the provisions of Title 14 Code of Federal Regulations Part 91 as a personal flight. The helicopter departed a farm near Jordan, Minnesota, about 1434 and was enroute to New Richmond Regional Airport (RNH), New Richmond, Wisconsin, when it impacted the ground near a cornfield and came to rest near railroad tracks and a rail car about 0.2 nautical miles northwest of Airlake Airport (LVN), Lakeville, Minnesota. A post impact fire ensued and destroyed the helicopter. The impact heading was about 78° and the main wreckage came to rest on a heading of about 177°. Cornstalks preceding the initial impact site were cut at 45°. Most of the debris was contained to a 55 ft path between the cornfield and the rail car, consisting of the tail cone, empennage, tail rotor, fuselage, landing gear, and most of the main rotor; however, some pieces of the main rotor blades were found near the approach end of runway 12 at LVN, 610 ft beyond (southeast) the impact site. Due to impact damage, the main rotor and tail rotor flight controls could not be functionally tested. The main rotor drive shaft was bent due to impact above the swashplate; however, the driveshaft could be moved slightly by hand confirming continuity from the input yoke through the main rotor driveshaft and the tail rotor output yoke. The tail rotor input yoke was rotated by hand with no anomalies. A witness to the accident stated that the helicopter was flying straight and level and then it turned sharply to the right and the nose of the helicopter pointed toward the ground. It remained in that attitude until it disappeared behind a building, and she lost sight of it. Video surveillance near the approach end of runway 12 at LVN captured the helicopter impacting the ground in a nose low attitude on its ride side. The helicopter was retained for further examination.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Aircraft

Registration
N6633L
Reported as
Robinson Helicopter R66
Category
Helicopter
Serial number
1211
Built
2023
Airframe hours
32
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 1, 2025
Departed
Jordan, MN
Destination
RNH · New Richmond, MN
Airport
KLVN · Airlake Airport
Equipment
ADS-B

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 8 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
8,500 ft broken
Temperature
61 °F, dew point 45 °F
Altimeter
30.06 inHg
Observed at
KLVN, 1 nm away
METAR
KLVN 061955Z AUTO 28008G15KT 10SM VCTS SCT041 SCT049 BKN085 16/07 A3006

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.