On December 11, 1990, a Beech S35 (registration N53G) operated by Ethell, Ervin C. & Jeffrey L. was involved in an aviation accident near N. Myrtle Beach, SC. Investigators recorded the probable cause as: THE PILOT'S FAILURE TO ENSURE THAT THE ENGINE OIL FILTER WAS PROPERLY INSTALLED PRIOR TO FLIGHT, RESULTING IN ENGINE OIL LOSS AND EVENTUAL FAILURE OF THE ENGINE. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During an initial climb, an aircraft's engine surged, ran roughly, and quit, with oil observed on the windscreen. A forced landing resulted in collision with a telephone pole and nose-over. Investigation revealed an oil leak at a loose filter, broken connecting rods, and extreme engine overheating.
Accident Narrative
Approximately five minutes into the flight, the pilot observed the engine surge, run roughly, and subsequently quit. Prior to the engine stopping, oil was noted on the windscreen. During the forced landing attempt, the airplane collided with a telephone pole and nosed over.
Post-Accident Examination
Examination of the engine revealed an oil leak at the engine oil filter. The filter was safety wired but found to be loose. Two connecting rods were broken, and evidence of extreme overheating was observed inside the engine.
Maintenance History
The pilot reported that he had changed the oil and oil filter prior to the accident flight. An airport official reported a large amount of new oil on the ramp where the airplane had been parked.