# Incident 20250904021169I: Cowley Jason RANS DESIGNS S-21, Lee'S Summit, MO, September 4, 2025

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: September 4, 2025, 10:15 local time
- Place: Lee'S Summit, MO
- Airport: Lee'S Summit Municipal
- Damage: Minor damage
- Phase of flight: Takeoff: Climb Out
- Operating rules: General operating rules (Part 91)
- Location: 38.9225° N, 94.4058° W: Placed by OpenAirDocs at LEE'S SUMMIT (MU08), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.9225&lon=-94.4058&mi=10
- Aircraft: N340JH, registered now (https://openairdocs.org/aircraft/N340JH) (OpenAirDocs)
- Registry model: Cowley Jason RANS DESIGNS S-21 (registry code 05642M6, https://openairdocs.org/model/cowley-jason-rans-designs-s-21) (OpenAirDocs)
- Registry engine: Continental IOX340 series (registry code 17490, https://openairdocs.org/engine/continental-iox340-series) (OpenAirDocs)
- Reported make and model: COWLEY JASON RANS DESIGNS S-21
- Reported engine: CONT MOTOR IOX340 SERIES
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Private pilot
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20250904021169I

## Narrative

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

PILOT EXPERIENCED AN IN-FLIGHT ENGINE FAILURE SHORTLY AFTER DEPARTURE FROM RUNWAY 36. THE AIRCRAFT HAD REACHED AN ALTITUDE OF APPROXIMATELY 450 FEET AGL ON INITIAL CLIMB AFTER TAKEOFF WHEN THE ENGINE CEASED OPERATION COMPLETELY. UPON EXPERIENCING THE ENGINE FAILURE, THE PILOT EXECUTED THE ENGINE FAILURE CHECKLIST PROTOCOL, WHICH INCLUDED: VERIFICATION OF MASTER AND IGNITION SWITCHES, OPERATION OF THE BOOST PUMP, ADJUSTMENT OF THROTTLE AND FUEL MIXTURE, ACTIVATION OF IGNITION BACKUP BATTERY. DESPITE THESE EFFORTS, THE ENGINE DID NOT RESPOND. THE PILOT INITIATED A RIGHT BANK MANEUVER WITH THE INTENTION OF LANDING ON RUNWAY 18 OR RETURNING TO RUNWAY 36. HOWEVER, DUE TO THE AIRCRAFT'S SPEED AND ALTITUDE, THE DESCENT RATE INCREASED RAPIDLY RESULTING IN A HARD LANDING OFF THE INTENDED RUNWAY.

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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