What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Pilot flew into deteriorating weather conditions, landed on hill above lake and looked at options. Took off, reached approximately 500 to 600 feet and engine started losing power (possibly from carb. Ice) pilot autorotated into lake. Aircraft submerged, pilot and both passengers egressed helicopter and swam to boat dock.
As the FAA filed it
(-23) PILOT FLEW INTO DETERIORATING WEATHER CONDITIONS, LANDED ON HILL ABOVE LAKE AND LOOKED AT OPTIONS. TOOK OFF, REACHED APPROXIMATELY 500 TO 600 FEET AND ENGINE STARTED LOSING POWER (POSSIBLY FROM CARB. ICE) PILOT AUTOROTATED INTO LAKE. AIRCRAFT SUBMERGED, PILOT AND BOTH PASSENGERS EGRESSED HELICOPTER AND SWAM TO BOAT DOCK.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.