On October 29, 1983, an Ercoupe (eng & Research Corp.) 415-C (registration N99096) was involved in an aviation accident near Longview, TX. Investigators recorded the probable cause as: Separation of the #1 connecting rod resulting from extreme temperature caused by a lack of lubrication; the lubricating oil bladder was empty. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aircraft experienced an engine failure about one mile from the airport, with witnesses hearing a loud pop. The pilot attempted to clear trees but struck the tops. Investigation revealed a separated connecting rod and empty oil bladder.
Event Description
While flying toward the airport, approximately one mile away, a witness heard a loud pop or bang, after which no further engine sound was heard. The pilot attempted to climb above some tall trees located about 300 yards from the end of the runway, but the aircraft impacted the tops of the trees.
Engine Examination
Post-impact examination of the engine revealed that the #1 connecting rod had separated. The bearing, the end of the rod, and the crankshaft journal showed evidence of extreme temperature. There was evidence of a lack of lubrication throughout the engine. The lubricating oil bladder was empty.
Probable cause
Separation of the #1 connecting rod resulting from extreme temperature caused by a lack of lubrication; the lubricating oil bladder was empty.
What happened in the 29 Oct 1983 Ercoupe (eng & Research Corp.) 415-C accident near Longview, TX?
An aircraft experienced an engine failure about one mile from the airport, with witnesses hearing a loud pop. The pilot attempted to clear trees but struck the tops. Investigation revealed a separated connecting rod and empty oil bladder.
What aircraft was involved and where did it happen?
The accident on 29 Oct 1983 involved an Ercoupe (eng & Research Corp.) 415-C, registration N99096, at Longview, TX.
What was the probable cause of the accident?
Separation of the #1 connecting rod resulting from extreme temperature caused by a lack of lubrication; the lubricating oil bladder was empty.
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