What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Pilot reports that without prior indication or warning, loss of engine power. RPM and fuel flow at less than normal idle RPM and fuel flow, no throttle or mixture response, suspecting that engine was merely windmilling. Attempts at restart/regaining of engine power unsucessful. Gradual descent down to waters of cook inlet, AK 1 - 2 mi. Ea. Of kalgin island. Floats broke away on landing, aircraft later sunk. Airworthiness is the only area of FAA nine areas of responsibility in question. Pilot competency not in question, pilot current, fuel management seemingly rational, fuel depletion ruled out. Fuel contamination not in question. Loss of engine power due to undetermined reason(s).there will be no attempt at retrieval of aircraft.
As the FAA filed it
PILOT REPORTS THAT WITHOUT PRIOR INDICATION OR WARNING, LOSS OF ENGINE POWER. RPM AND FUEL FLOW AT LESS THAN NORMAL IDLE RPM AND FUEL FLOW, NO THROTTLE OR MIXTURE RESPONSE, SUSPECTING THAT ENGINE WAS MERELY WINDMILLING. ATTEMPTS AT RESTART/REGAINING OF ENGINE POWER UNSUCESSFUL. GRADUAL DESCENT DOWN TO WATERS OF COOK INLET, AK 1 - 2 MI. EA. OF KALGIN ISLAND. FLOATS BROKE AWAY ON LANDING, AIRCRAFT LATER SUNK. AIRWORTHINESS IS THE ONLY AREA OF FAA NINE AREAS OF RESPONSIBILITY IN QUESTION. PILOT COMPETENCY NOT IN QUESTION, PILOT CURRENT, FUEL MANAGEMENT SEEMINGLY RATIONAL, FUEL DEPLETION RULED OUT. FUEL CONTAMINATION NOT IN QUESTION.LOSS OF ENGINE POWER DUE TO UNDETERMINED REASON(S).THERE WILL BE NO ATTEMPT AT RETRIEVAL OF AIRCRAFT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.