What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-5)While descending from an altitude of 4500 feet to 3500 the aircraft engine started to run rough with a loss of power. Pilot turned carb heat on for 2 to 3 minutes, engine roughness cleared initially but started again, with carb heat still on. Pilot proceeded with engine failure checklist, engine continued to run rough and lose power. At an altitude of about 2500 feet engine would only maintain 1200 to 1500 RPM. Pilot declared an emergency and landed on a frozen lake. There were no injuries to the pilot or passenger and no damage to the aircraft.
As the FAA filed it
(-5)WHILE DESCENDING FROM AN ALTITUDE OF 4500 FEET TO 3500 THE AIRCRAFT ENGINE STARTED TO RUN ROUGH WITH A LOSS OF POWER. PILOT TURNED CARB HEAT ON FOR 2 TO 3 MINUTES, ENGINE ROUGHNESS CLEARED INITIALLY BUT STARTED AGAIN, WITH CARB HEAT STILL ON. PILOT PROCEEDED WITH ENGINE FAILURE CHECKLIST, ENGINE CONTINUED TO RUN ROUGH AND LOSE POWER. AT AN ALTITUDE OF ABOUT 2500 FEET ENGINE WOULD ONLY MAINTAIN 1200 TO 1500 RPM. PILOT DECLARED AN EMERGENCY AND LANDED ON A FROZEN LAKE. THERE WERE NO INJURIES TO THE PILOT OR PASSENGER AND NO DAMAGE TO THE AIRCRAFT.
Other reports on N9099H · 2
Matched to the same aircraft by N-number and date.