What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Aircraft lost oil pressure while en route and made an emergency landing. (.4)the pilot reported that smoke started to enter the cabin from the heater vent. He shut the vent and scanned the engine instruments. He noted there was 'no oil pressure.' The engine 'started running very rough and shaking.' He 'shut the engine down to minimize vibration...established best glide angle' and conducted a forced landing in a wooded swamp. The airplane sustained substantial damage during the landing. Examination of the wreckage revealed the 'lower oil separator hose' was not connected to the wet vacuum pump. The number one and two connecting rod bolts were necked and fractured. Corresponding holes were punched in the crankcase. The left magneto gasket and the starter motor mounting flange exhibited evidence of oil leakage. Combustion deposits and spark plugs in the number three cylinder exhibited evidence of 'possible high oil consumption.' The operator of the airplane reported that he had 'topped off' the engine oil prior to the origination of the accident flight. (-23) on March 11, 1997 at 1430 EDT daylight time, a Cessna CE-172-B, N171A s sustained substantial damage when the engine experienced loss of oil pressure and smoke in the cockpit. The aircraft went down 15 miles southeast of Marquette, Michigan. The pilot reported a loss of oil pressure and smoke in cockpit which cause engine power loss. The student pilot reported minor injuries to this forehead. The personal 14 CFR part 91 flight was operating in visual meteorological conditions.
As the FAA filed it
AIRCRAFT LOST OIL PRESSURE WHILE EN ROUTE AND MADE AN EMERGENCY LANDING. (.4)THE PILOT REPORTED THAT SMOKE STARTED TO ENTER THE CABIN FROM THE HEATER VENT. HE SHUT THE VENT AND SCANNED THE ENGINE INSTRUMENTS. HE NOTED THERE WAS 'NO OIL PRESSURE.' THE ENGINE 'STARTED RUNNING VERY ROUGH AND SHAKING.' HE 'SHUT THE ENGINE DOWN TO MINIMIZE VIBRATION...ESTABLISHED BEST GLIDE ANGLE' AND CONDUCTED A FORCED LANDING IN A WOODED SWAMP. THE AIRPLANE SUSTAINED SUBSTANTIAL DAMAGE DURING THE LANDING. EXAMINATION OF THE WRECKAGE REVEALED THE 'LOWER OIL SEPARATOR HOSE' WAS NOT CONNECTED TO THE WET VACUUM PUMP. THE NUMBER ONE AND TWO CONNECTING ROD BOLTS WERE NECKED AND FRACTURED. CORRESPONDING HOLES WERE PUNCHED IN THE CRANKCASE. THE LEFT MAGNETO GASKET AND THE STARTER MOTOR MOUNTING FLANGE EXHIBITED EVIDENCE OF OIL LEAKAGE. COMBUSTION DEPOSITS AND SPARK PLUGS IN THE NUMBER THREE CYLINDER EXHIBITED EVIDENCE OF 'POSSIBLE HIGH OIL CONSUMPTION.' THE OPERATOR OF THE AIRPLANE REPORTED THAT HE HAD 'TOPPED OFF' THE ENGINE OIL PRIOR TO THE ORIGINATION OF THE ACCIDENT FLIGHT. (-23) ON MARCH 11, 1997 AT 1430 EDT DAYLIGHT TIME, A CESSNA CE-172-B, N171A S SUSTAINED SUBSTANTIAL DAMAGE WHEN THE ENGINE EXPERIENCED LOSS OF OIL PRESSURE AND SMOKE IN THE COCKPIT. THE AIRCRAFT WENT DOWN 15 MILES SOUTHEAST OF MARQUETTE, MICHIGAN. THE PILOT REPORTED A LOSS OF OIL PRESSURE AND SMOKE IN COCKPIT WHICH CAUSE ENGINE POWER LOSS. THE STUDENT PILOT REPORTED MINOR INJURIES TO THIS FOREHEAD. THE PERSONAL 14 CFR PART 91 FLIGHT WAS OPERATING IN VISUAL METEOROLOGICAL CONDITIONS.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.