On September 18, 1992, a Cessna 172I (registration N46084) operated by Stratton, Laurence E. was involved in an aviation accident near Victoria, TX. Investigators recorded the probable cause as: BLOCKED ENGINE ASSEMBLY BREATHER TUBE AND THE PILOT'S CONTINUED OPERATION WITH KNOWN MAINTENANCE DISCREPANCIES. FACTORS WERE OIL ON WINDSHEILD AND REDUCED VISIBILITY DUE TO OIL ON THE WINDSCREEN.. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During an emergency landing following an oil pressure loss and smoke, the left wing struck terrain. Examination revealed oil leaks and a plugged breather tube; the engine had a recent fire but no record of breather hose replacement.
Accident Sequence
During flight, the engine oil pressure dropped to zero and a witness observed smoke coming from the engine. The pilot initiated an emergency landing. During the landing, oil covered the windshield. On final approach, the left wing struck the terrain.
Examination Findings
Post-accident examination of the engine revealed oil leaking from the crankcase seal. The breather tube was found completely plugged with debris.
Maintenance Background
The engine had recently experienced an engine compartment fire. A maintenance person reported that their survey of the damage following the fire had included rubber components and hoses. There was no record that the breather hose had been replaced.
Frequently asked questions
What happened in the 18 Sept 1992 Cessna 172I accident near Victoria, TX?
During an emergency landing following an oil pressure loss and smoke, the left wing struck terrain. Examination revealed oil leaks and a plugged breather tube; the engine had a recent fire but no record of breather hose replacement.
What aircraft was involved and where did it happen?
The accident on 18 Sept 1992 involved a Cessna 172I, registration N46084, operated by Stratton, Laurence E., at Victoria, TX.
What was the probable cause of the accident?
BLOCKED ENGINE ASSEMBLY BREATHER TUBE AND THE PILOT'S CONTINUED OPERATION WITH KNOWN MAINTENANCE DISCREPANCIES. FACTORS WERE OIL ON WINDSHEILD AND REDUCED VISIBILITY DUE TO OIL ON THE WINDSCREEN..
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