Probable cause
The loss of engine power for reasons that could not be determined during postaccident examinations and testing.
NTSB analysis
Before the flight, a mechanic assisted the pilot with adjusting the engine mixture settings during several engine starts and run-ups. The pilot was satisfied with the adjustments and proceeded with the local test flight. Witnesses reported observing the airplane climb out normally and then start to circle the airport. The airplane then descended toward the airport as the pilot declared an emergency due to engine problems. The pilot landed the airplane in a plowed field with the gear up, which resulted in substantial damage to the airplane. Postaccident examination of the engine did not reveal any anomalies that may have contributed to the reported loss of power. Additionally, the slave propeller was replaced, and the engine was test run on the airframe up to full power with no anomalies noted except for slight fuel flow indicator fluctuations.
Text from the NTSB. Open the NTSB docket for CEN12LA675 for the full record.
Event
- Date
- Sep 26, 2012
- Type
- Accident
- Place
- Greeley, Colorado
- Nearest airport
- Greeley-Weld County Airport (GXY)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Beech E33
- N-number
- N7133N
- 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.