Robinson R44 N41351 accident near Cass, Arkansas

Probable cause

A loss of engine power for reasons that could not be determined based on the available information.

NTSB analysis

The pilot and three passengers departed on a local sightseeing flight at a music festival. The helicopter impacted a densely wooded area and came to rest between trees on its right side. The surviving passenger stated to the media that the helicopter’s engine made sounds “like your car does when it runs out of fuel.”

Examination of the helicopter at the accident site indicated evidence of main rotor blade rotation; however, damage to the engine drive system did not reveal evidence of engine power at the time of impact. Additionally, the oil pressure warning light bulb filament was found stretched consistent with illumination at the time of impact, which according to the helicopter’s operating handbook, may be one indication of a loss of engine power. About 5 gallons of fuel was drained from the helicopter following the accident, with no evidence of fuel contamination. Examination of the airframe, flight controls, and engine revealed no evidence of any preimpact mechanical anomalies that would have precluded normal operation.

Text from the NTSB. Open the NTSB docket for CEN19FA160 for the full record.