What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
While departing a offshore platform in the gulf of Mexico just after takeoff, the pilot reported hearing the low rotor RPM alarm and observed the low rotor warning light had illuminated. He reduced the collective and assuring the throttle was in the full on position. The pilot determined further flight would not be possible, leveled the aircraft and initiated an auto-rotation and at the same time alerted the passengers, activated the float system and completed the water landing. After executing the landing in the water, the aircraft was evacuated without further incident onto the life raft. The pilot and passengers reported receiving no injuries.
As the FAA filed it
WHILE DEPARTING A OFFSHORE PLATFORM IN THE GULF OF MEXICO JUST AFTER TAKEOFF, THE PILOT REPORTED HEARING THE LOW ROTOR RPM ALARM AND OBSERVED THE LOW ROTOR WARNING LIGHT HAD ILLUMINATED. HE REDUCED THE COLLECTIVE AND ASSURING THE THROTTLE WAS IN THE FULL ON POSITION. THE PILOT DETERMINED FURTHER FLIGHT WOULD NOT BE POSSIBLE, LEVELED THE AIRCRAFT AND INITIATED AN AUTO-ROTATION AND AT THE SAME TIME ALERTED THE PASSENGERS, ACTIVATED THE FLOAT SYSTEM AND COMPLETED THE WATER LANDING. AFTER EXECUTING THE LANDING IN THE WATER, THE AIRCRAFT WAS EVACUATED WITHOUT FURTHER INCIDENT ONTO THE LIFE RAFT. THE PILOT AND PASSENGERS REPORTED RECEIVING NO INJURIES.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.