Probable cause
the loss of engine power for undetermined reasons. A contributing factor was the dirt embankment.
NTSB analysis
Several days preceding the accident, the pilot experienced engine problems during an attempted aerial application flight. After maintenance was performed, the airplane underwent several engine test runs and a couple of test flights with no problems noted. On the day of the accident, the airplane was loaded with approximately 150 gallons of chemical. After takeoff, the pilot turned the airplane in a direction opposite of his intended destination in order to over fly the airport in case of an emergency. During the initial takeoff climb, the engine was running okay and no problems were noted. Approximately 1 to 1.5 miles from the airport, the engine "pulled down," and the pilot could not maintain altitude. The pilot stated, "I am now sure the engine was trying to seize up and I was again forced to land." The pilot elected to perform a forced landing to a field. During the forced landing, the airplane impacted a dirt embankment, went onto its nose, and came to rest upright. The reason for the loss of engine power was not determined.
Text from the NTSB. Open the NTSB docket for DEN08LA103 for the full record.
Event
- Date
- Jun 12, 2008
- Type
- Accident
- Place
- Lyons, Kansas
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Cessna A188B
- N-number
- N9639G
- Category
- Airplane
- 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.