On August 28, 2007, a Piper PA-31P (registration N7325L) was involved in an aviation accident near Newton, KS. Investigators recorded the probable cause as: The failure of the exhaust gasket on the number 6 cylinder for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During takeoff climb at 300 feet, the pilot experienced a partial loss of power in the right engine. Forced landing in a field adjacent to the airport. Examination found a missing exhaust gasket and damaged components.
Incident Summary
During the initial takeoff climb, at an altitude of 300 feet above ground level, the right engine experienced a partial loss of power. The pilot attempted to return and land at the airport but was forced to execute a landing in a field adjacent to the airport. Post-accident examination of the airframe revealed that the forward and rear spars of the right wing were bent upward.
Examination Findings
Inspection of the right engine identified that the number 6 cylinder exhaust gasket was practically missing. Additionally, the lower spark plug lead on the number 6 cylinder was damaged and had separated from the spark plug. The magneto P-lead was also damaged. These issues resulted in a partial loss of engine power.
Maintenance History
A review of the aircraft's maintenance records indicated that the exhaust gaskets on the right engine for cylinders 2, 4, and 6 had been replaced approximately 4 hours prior to the accident. The reason for the failure of the exhaust gasket was not determined.