Probable cause
The loss of engine power due to improper maintenance and resultant oil starvation.
NTSB analysis
While in cruise flight the pilot noted a decrease in engine rpm. He began to troubleshoot the problem and reversed course to head toward more favorable terrain for a forced landing. After completing the turn, the engine seized, and the pilot performed a forced landing to a pasture. During the landing roll, the right wing impacted a bale of hay, resulting in substantial damage. An examination of the engine revealed that the loss of engine power and resultant seizure was due to a loss of engine oil. Further examination revealed that the bolts on the vacuum pump were loose and the engine oil was exiting at that location. An examination of the airframe and remaining systems revealed no anomalies.
Text from the NTSB. Open the NTSB docket for CEN11LA441 for the full record.
Event
- Date
- Jul 1, 2011
- Type
- Accident
- Place
- Flippin, Arkansas
- Highest injury
- Serious
- Serious injuries
- 1
- Weather
- Visual (VMC)
- Light
- Day
Piper PA-28-180
- N-number
- N56417
- Category
- Airplane
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Personal
From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.