What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Pilot in command reported that while flying approximately 300' AGL, the low rotor warning light came on. Engine RPM went up slightly and main rotor RPM started to decline. A decision was made to make a precautionary landing in an open field. Pilot reported landing with a 20 knot tailwind, the aircraft pitched forward with the main rotor contacting the ground, causing a helo-rollover. No injuries or property damage was incurred.
Weather had 10K ceilings and unlimited visibility.
Engine belt "auto-tensioner" was sent to Robinson helicopter for review at a later date by the NTSB.
As the FAA filed it
PILOT IN COMMAND REPORTED THAT WHILE FLYING APPROXIMATELY 300' AGL, THE LOW ROTOR WARNING LIGHT CAME ON. ENGINE RPM WENT UP SLIGHTLY AND MAIN ROTOR RPM STARTED TO DECLINE. A DECISION WAS MADE TO MAKE A PRECAUTIONARY LANDING IN AN OPEN FIELD. PILOT REPORTED LANDING WITH A 20 KNOT TAILWIND, THE AIRCRAFT PITCHED FORWARD WITH THE MAIN ROTOR CONTACTING THE GROUND, CAUSING A HELO-ROLLOVER. NO INJURIES OR PROPERTY DAMAGE WAS INCURRED.
WEATHER HAD 10K CEILINGS AND UNLIMITED VISIBILITY.
ENGINE BELT "AUTO-TENSIONER" WAS SENT TO ROBINSON HELICOPTER FOR REVIEW AT A LATER DATE BY THE NTSB.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.