Probable cause
A loss of engine power due to lead fouling of a spark plug.
NTSB analysis
The pilot reported that shortly after takeoff, the engine started to run rough. The pilot reversed course back toward the departure airport when the roughness increased and then the engine lost all power. The pilot performed a forced landing to a field and the airplane nosed over, which resulted in substantial damage to the wings and fuselage.
An examination of the engine revealed that the No. 3 cylinder spark plug’s firing end contained hard, cinder-like deposits, consistent with lead fouling. When tested, the No. 3 cylinder spark plug did not spark; however, after it was cleaned, the spark plug functioned normally. No other mechanical anomalies with the engine or airframe were noted that would have precluded normal operation. The pilot reported that he used 100LL aviation fuel in the engine. It is likely that the loss of power was due to the lead fouling on the No. 3 cylinder spark plug.
Text from the NTSB. Open the NTSB docket for CEN23LA313 for the full record.
Event
- Date
- Jul 19, 2023
- Type
- Accident
- Place
- Gardner, Kansas
- Nearest airport
- Gardner Municipal Airport (K34)
- Highest injury
- Minor
- Minor injuries
- 1
- Weather
- Visual (VMC)
- Light
- Day
Amateur-built AIRCAMPER
- N-number
- N34KP
- Category
- Airplane
- Year built
- 2000
- 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.