No fatalities

ROBINSON HELICOPTER COMPANY R44 II accident at Randolph, WI, 31 Jul 2021

Randolph, WI, United States

On July 31, 2021, a ROBINSON HELICOPTER COMPANY R44 II operated by MF HELICOPTERS LLC was involved in an aviation accident near Randolph, WI. No fatalities were reported. Investigators recorded the probable cause as: The pilot’s failure to maintain clearance from power lines during a low-level aerial application flight. This summary draws on records from NTSB; 16 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

Probable cause

The pilot’s failure to maintain clearance from power lines during a low-level aerial application flight.

— NTSB Determination

Contributing factors

Pilot

Frequently asked questions

What happened in the 31 Jul 2021 ROBINSON HELICOPTER COMPANY R44 II accident near Randolph, WI?

The pilot’s failure to maintain clearance from power lines during a low-level aerial application flight.

Were there any fatalities in the 31 Jul 2021 ROBINSON HELICOPTER COMPANY R44 II accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 31 Jul 2021 involved a ROBINSON HELICOPTER COMPANY R44 II, operated by MF HELICOPTERS LLC, at Randolph, WI.

What was the probable cause of the accident?

The pilot’s failure to maintain clearance from power lines during a low-level aerial application flight.