# Accident 20260623007809A: Ryan NAVION, Bismarck, MO, June 23, 2026

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 23, 2026, 10:15 local time
- Place: Bismarck, MO
- Airport: Bismarck Memorial
- Damage: Substantial damage
- Phase of flight: Takeoff: Climb Out
- Operating rules: General operating rules (Part 91)
- Location: 37.7588° N, 90.6168° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=37.7588&lon=-90.6168&mi=10
- Aircraft: N4583K, registered now (https://openairdocs.org/aircraft/N4583K) (OpenAirDocs)
- Registry model: Ryan NAVION (registry code 6150160, https://openairdocs.org/model/ryan-navion) (OpenAirDocs)
- Registry engine: Continental E185 series (registry code 17014, https://openairdocs.org/engine/continental-e185-series) (OpenAirDocs)
- Reported make and model: RYAN NAVION
- Reported engine: CONT MOTOR E185 SERIES
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Private pilot
- Pilot flight hours: 1,246 total, 109 in this make and model, 4 in the last 90 days
- NTSB investigation: [NTSB WPR26LA229](https://openairdocs.org/ntsb/WPR26LA229) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20260623007809A

## Narrative

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

PILOT DISCLOSED LEAVING HOMEMADE GUST LOCK ON THE PILOT CONTROL YOKE RESULTING IN INABILITY TO EFFECTIVELY CONTROL THE AIRCRAFT.

## 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 WPR26LA229](https://openairdocs.org/ntsb/WPR26LA229), Jun 23, 2026: Ryan Navion (N4583K), Bismarck, MO, substantial damage. Probable cause: The pilot’s failure to remove the maintenance spacer before takeoff, which resulted in restricted flight control movement and a loss of control.

## Other reports on N4583K (1)

Matched to the same aircraft by N-number and date.

- [Incident 20070715012809I](https://openairdocs.org/incident/20070715012809I), Jul 15, 2007: Ryan NAVION (N4583K), Perryville, MO, Minor damage. (-23) The pilot was practicing takeoff and landings at Perryville Municipal Airport, Perryville Missouri (K02). The pilot stated he just forgot to lower the…

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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