Probable cause
The loss of engine power due to three stuck exhaust valves.
NTSB analysis
While the commercial pilot was maneuvering to begin an agricultural application flight, smoke from the engine entered the cockpit, followed by the engine experiencing a partial loss of power. The pilot performed a forced landing, and during the landing roll, the airplane nosed over. An examination of the engine revealed that three of the cylinders exhaust valves were stuck and had 0-to-low compression values.
Text from the NTSB. Open the NTSB docket for CEN15LA175 for the full record.
Event
- Date
- Mar 17, 2015
- Type
- Accident
- Place
- New Roads, Louisiana
- Highest injury
- Minor
- Minor injuries
- 1
- Weather
- Visual (VMC)
- Light
- Day
Grumman Acft Eng Cor-Schweizer G 164A
- N-number
- N9755
- Category
- Airplane
- Year built
- 1974
- Damage
- Substantial
- Operating rule
- Part 137 (agricultural)
- Purpose of flight
- Aerial application
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.