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NTSB Report
July 8, 2025 · Stinson 108 · N97577
Seguin, TX
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 8, 2025
Injury Outcomes
1 injury (1 serious injury)
Location
Seguin, TX
Aircraft
Stinson 108 (1946)
Tail Number
N97577
Injuries
Serious
NTSB Number
CEN25LA243
After refueling the airplane, the engine failed to start after two attempts, and the pilot elected to reposition the propeller by hand. The magneto switch was left in the ON position, and the engine inadvertently started which resulted in a serious injury to the pilot’s arm. The unoccupied airplane then collided with a large metal sign and came to rest upright. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot’s failure to turn off the magneto switch before repositioning the propeller by hand which resulted in an inadvertent engine start.
Full Narrative
After refueling the airplane, the engine failed to start after two attempts, and the pilot elected to reposition the propeller by hand. The magneto switch was left in the ON position, and the engine inadvertently started which resulted in a serious injury to the pilot’s arm. The unoccupied airplane then collided with a large metal sign and came to rest upright. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time18:45 CDT
Nearest AirportZUEHL (0nm N)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireUnknown
Aircraft ExplosionUnknown
Aircraft
AircraftStinson 108
Tail NumberN97577
Aircraft CategoryAir
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6A4-150-B3 · Reciprocating · 150
Seats4
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 72 · Second Class · Serious
Conditions
ConditionsVMC
LightDaylight
Wind140° @ 8 kt
Visibility10 sm
CeilingNone
Altimeter30.06 inHg
Observation Time19:55
Weather SourceWFAC