# Accident 20250808010779A: Nill William H CLASSIC IV, Parma, ID, August 8, 2025

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 8, 2025, 10:25 local time
- Place: Parma, ID
- Airport: Parma Airport
- Damage: Substantial damage
- Phase of flight: Landing: Approach
- Operating rules: General operating rules (Part 91)
- Location: 43.7710° N, 116.9306° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=43.7710&lon=-116.9306&mi=10
- Aircraft: N300KF (not matched to a registry record)
- Reported make and model: NILL WILLIAM H CLASSIC IV
- Reported engine: ROTAX 582SER
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 1
- Pilot certificates: Commercial pilot
- NTSB investigation: [NTSB WPR25LA245](https://openairdocs.org/ntsb/WPR25LA245) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20250808010779A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON THE MORNING OF 08/08/2025 AN AMATEUR BUILD KIT FOX WAS PRACTICING TOUCH AND GOES AT 50S AIRPORT IN PARMA IDAHO. WHILE IN APPROACH PHASE, THE PILOT HAD COMPLETED THE DOWNWIND LEG AND HAD TURNED ONTO THE BASE LEG WHEN THE ENGINE ABRUPTLY QUIT AND WENT SILENT. HE ESTIMATED THE FAILURE OCCURRED JUST PRIOR TO TURNING FINAL AT AN ALTITUDE OF A FEW HUNDRED FEET ABOVE THE GROUND. AT THE TIME OF THE FAILURE, THE ENGINE HAD BEEN SET AT APPROXIMATELY 3,000 RPM, WHICH THE PILOT HAD FOUND TO PROVIDE AN APPROPRIATE DESCENT RATE. PILOT REPORTED THAT THE ENGINE WAS NOT IDLING AND WAS OPERATING NORMALLY UNTIL THE POWER LOSS. WHEN THE ENGINE QUIT, PILOT APPLIED THROTTLE, BUT NO POWER WAS PRODUCED, AND THE ENGINE STOPPED COMPLETELY. PILOT DID NOT RECALL ANY SPUTTERING OR UNUSUAL SOUNDS BEFORE THE LOSS OF POWER.

WITH ONLY A FEW SECONDS TO RESPOND, THE PILOT SELECTED A NEARBY PASTURE FOR OBSTACLE AVOIDANCE. AFTER MAKING CONTACT WITH THE GROUND AT APPROXIMATELY 527 YARDS FROM THE END OF THE RUNWAY, THE NOSE LANDING GEAR BENT UP AND BACK. THE PROPELLERS AND HUB MADE CONTACT WITH THE GROUND SHEERING THE 3 BLADES FROM THE HUB AND GOUGING APPROXIMATELY 3 INCHES INTO THE GROUND. THE AIRCRAFT BEGAN TO FLIP OVER THE NOSE AND SLIDE INVERTED AND BACKWARDS. THE AIRCRAFT CAME TO REST AT APPROXIMATELY 42 FEET FROM THE INITIAL IMPACT ZONE.

DURING INVESTIGATION, IT WAS DETERMINED THAT BOTH IGNITION SYSTEMS FAILED TO PROVIDE ADEQUATE SPARK FOR SUSTAINED ENGINE OPERATION.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR25LA245](https://openairdocs.org/ntsb/WPR25LA245), Aug 8, 2025: Denney Kitfox (N300KF), Parma, ID, substantial damage, investigation ongoing

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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