On July 16, 1997, a Cessna 177RG (registration N52120) was involved in an aviation accident near Knoxville, TN. Investigators recorded the probable cause as: the pilot's inadequate preflight by failing to ensure the oil filler cap was secured during his preflight inspection, and loss of engine oil (oil exhaustion), which resulted in subsequent engine failure. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During takeoff climb, engine ran rough and stopped. Pilot performed emergency landing in a field. Examination revealed loose oil dipstick and oil wetness in multiple areas.
Incident Summary
During the takeoff climb, the engine began running roughly and subsequently stopped entirely. The pilot initiated an emergency landing into a field. The airplane encountered rough terrain during the landing, resulting in substantial damage to the aircraft.
Pilot Actions
The pilot reported that a preflight inspection had been conducted and no discrepancies were found. After the engine failure, the pilot executed an emergency landing in a field.
Post-Accident Examination
A visual examination of the airplane revealed that the oil dipstick was loose. Isolated areas of oil wetness were found in the vicinity of the #2 cylinder base and around the right rear accessory section. Oil was also observed on the lower right-hand windshield, on the nose landing gear doors, and down 50 percent of the belly of the fuselage.