Incident Overview
The pilot of the aircraft reported that the engine lost power "without warning" while flying over water near the shore at approximately 500 feet. The pilot performed emergency procedures and regained partial power, but not enough to continue flight. The pilot maneuvered toward the shore and elected to ditch the aircraft to avoid obstructions and personnel along the beach.
Pilot and Passenger Accounts
As the aircraft neared the water, the passenger grabbed the yoke and pulled back. The aircraft then stalled and dove into the water. The passenger confirmed that she had "held on" to the yoke just before impact. The pilot reported that the passenger's action occurred as the aircraft was nearing the water.
Witness Observations
Several witnesses and the passenger reported that the aircraft was flying level at approximately 50 feet (rather than 500 feet) when the engine lost power. Witnesses who rescued the pilot and passenger reported that they observed fuel floating on the water when they arrived at the aircraft by boat after the accident.
Post-Accident Examination
Before an investigator arrived, the operator disassembled the engine and placed the components in diesel oil to prevent corrosion. An examination of the disassembled engine revealed no evidence of a preexisting mechanical malfunction or failure. The temperature and dew point were 89°F and 69°F, respectively. Icing probability charts showed that carburetor icing was possible.