What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Pilot took off from backyard of his house at mile marker 88 in islamorada, FL and flew at 500' along the ocean shoreline to approximately mile marker 75 when he noticed the clutch light seemed to be blinking a little more than normal. He turned around and started back when noticing no one was on Indian Key. Pilot landed to check the drive belts. Pilot set the RPM at 70% and tightened the friction on the cyclic and but failed to set on the lock on the collective. Pilot left the aircraft running and exited the aircraft to open the cowlings and check the belts. This took 2 minutes according to pilots statement. As the pilot was walking back to the cockpit, the aircraft started to lift off on its own. Pilot quickly tried to reach in and lower the collective but was too late and up it went with the pilot hanging on the outside. About 10 feet off the ground the pilot lets go and fell to the ground breaking his left arm and the helicopter went up another 200 feet high and 600 yards away before crashing into the atlantic ocean in five feet of water.
As the FAA filed it
PILOT TOOK OFF FROM BACKYARD OF HIS HOUSE AT MILE MARKER 88 IN ISLAMORADA, FL AND FLEW AT 500' ALONG THE OCEAN SHORELINE TO APPROXIMATELY MILE MARKER 75 WHEN HE NOTICED THE CLUTCH LIGHT SEEMED TO BE BLINKING A LITTLE MORE THAN NORMAL. HE TURNED AROUND AND STARTED BACK WHEN NOTICING NO ONE WAS ON INDIAN KEY. PILOT LANDED TO CHECK THE DRIVE BELTS. PILOT SET THE RPM AT 70% AND TIGHTENED THE FRICTION ON THE CYCLIC AND BUT FAILED TO SET ON THE LOCK ON THE COLLECTIVE. PILOT LEFT THE AIRCRAFT RUNNING AND EXITED THE AIRCRAFT TO OPEN THE COWLINGS AND CHECK THE BELTS. THIS TOOK 2 MINUTES ACCORDING TO PILOTS STATEMENT. AS THE PILOT WAS WALKING BACK TO THE COCKPIT, THE AIRCRAFT STARTED TO LIFT OFF ON ITS OWN. PILOT QUICKLY TRIED TO REACH IN AND LOWER THE COLLECTIVE BUT WAS TOO LATE AND UP IT WENT WITH THE PILOT HANGING ON THE OUTSIDE. ABOUT 10 FEET OFF THE GROUND THE PILOT LETS GO AND FELL TO THE GROUND BREAKING HIS LEFT ARM AND THE HELICOPTER WENT UP ANOTHER 200 FEET HIGH AND 600 YARDS AWAY BEFORE CRASHING INTO THE ATLANTIC OCEAN IN FIVE FEET OF WATER.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.