On May 8, 2004, a Cessna 170B (registration N1754D) was involved in an aviation accident near Shirley, NY. Investigators recorded the probable cause as: The pilot's inadequate pre-flight inspection, which resulted in his failure to remove the engine inlet covers and subsequent loss of engine power. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A pilot noticed oil pressure and RPM drop 20 minutes into a local flight, then engine lost power. He performed a successful forced landing to a parking lot. After exiting, smoke and fire were seen from the cowling, with cowling plugs still in place. Fire destroyed the airplane.
Flight and Engine Failure
The pilot completed a preflight inspection and departed for a local flight. Approximately 20 minutes after takeoff, the pilot noticed a decrease in engine oil pressure and RPM. Shortly thereafter, the engine lost all power. The pilot then executed a forced landing to a parking lot, which was successful.
Post-Landing Fire
After landing, the pilot exited the airplane and observed smoke and fire emanating from the cowling. He also observed that the engine cowling plugs were still in place. The fire subsequently spread and consumed the entire airplane.
Examination of the Engine
An examination of the engine was conducted following the accident. The examination did not reveal any pre-impact mechanical malfunctions.