From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
In cruise flight at an altitude below 3000 feet, the engine started to run rough. Completed emergency checklist, mixture full rich, prop and throttle both forward, fuel boost pumps on-engine ran worse, pump turned off. Altitude was now 500 feet, looked for landing spot. Landed on a frozen lake, on rollout the aircraft tires broke through the ice in approximately 1 foot of water on to a second layer of ice. After coming to a stop the engine was running normal at idle power. 100 feet ahead was land, so the pilot advanced the throttle to taxi over to land. The engine came up to power but after 3-4 seconds the engine started running rough again. The throttle was brought back to idle and after 10 seconds the throttle was advanced again to full power, the engine ran good for 3-4 seconds and then rough again. This was continued until land was made. Aircraft was secured on land.
As the FAA filed it
IN CRUISE FLIGHT AT AN ALTITUDE BELOW 3000 FEET, THE ENGINE STARTED TO RUN ROUGH. COMPLETED EMERGENCY CHECKLIST, MIXTURE FULL RICH, PROP AND THROTTLE BOTH FORWARD, FUEL BOOST PUMPS ON-ENGINE RAN WORSE, PUMP TURNED OFF. ALTITUDE WAS NOW 500 FEET, LOOKED FOR LANDING SPOT. LANDED ON A FROZEN LAKE, ON ROLLOUT THE AIRCRAFT TIRES BROKE THROUGH THE ICE IN APPROXIMATELY 1 FOOT OF WATER ON TO A SECOND LAYER OF ICE. AFTER COMING TO A STOP THE ENGINE WAS RUNNING NORMAL AT IDLE POWER. 100 FEET AHEAD WAS LAND, SO THE PILOT ADVANCED THE THROTTLE TO TAXI OVER TO LAND. THE ENGINE CAME UP TO POWER BUT AFTER 3-4 SECONDS THE ENGINE STARTED RUNNING ROUGH AGAIN. THE THROTTLE WAS BROUGHT BACK TO IDLE AND AFTER 10 SECONDS THE THROTTLE WAS ADVANCED AGAIN TO FULL POWER, THE ENGINE RAN GOOD FOR 3-4 SECONDS AND THEN ROUGH AGAIN. THIS WAS CONTINUED UNTIL LAND WAS MADE. AIRCRAFT WAS SECURED ON LAND.
Other reports on N1653U · 3
Matched to the same aircraft by N-number and date.