# Accident 20210517006229A: Stearman Aircraft 4E, Porterville, CA, May 17, 2021

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: May 17, 2021, 15:30 local time
- Place: Porterville, CA
- Airport: Porterville Municipal
- Damage: Substantial damage
- Phase of flight: Landing: Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 36.0296° N, 119.0627° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=36.0296&lon=-119.0627&mi=10
- Aircraft: N663K, registered now (https://openairdocs.org/aircraft/N663K) (OpenAirDocs)
- Registry model: Stearman 4E (registry code 8560306, https://openairdocs.org/model/stearman-4e) (OpenAirDocs)
- Registry engine: Pratt & Whitney W-SC series (registry code 52010, https://openairdocs.org/engine/pratt-whitney-w-sc-series) (OpenAirDocs)
- Reported make and model: STEARMAN AIRCRAFT 4E
- People aboard: 3
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Airline transport
- Pilot flight hours: 28,500 total, 130 in this make and model, 12 in the last 90 days
- NTSB investigation: [NTSB WPR21LA197](https://openairdocs.org/ntsb/WPR21LA197) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20210517006229A

## Narrative

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

ON JUNE 17, 2021, N663K A STEARMAN AIRCRAFT A4 WAS INVOLVED IN A ACCIDENT WHILE ATTEMPTING A LANDING ON RUNWAY 30 AT THE

PORTERVILLE MUNICIPAL AIRPORT AT APPROXIMATELY 1530 LOCAL TIME. ACCORDING TO THE PILOT  HE EXPERIENCED UNEXPECTED CROSSWIND CONDITIONS CAUSING THE AIRCRAFT RIGHT MAIN GEAR TO COLAPSE. THIS CAUSE SUBSTANTIAL DAMAGE TO THE RIGHT WING SPAR (CRACKED) OF THE AIRCRAFT.THERE WERE NO REPORTED INJURIES.

## 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 WPR21LA197](https://openairdocs.org/ntsb/WPR21LA197), May 17, 2021: Stearman 4E (N663K), Porterville, CA, substantial damage. Probable cause: The pilot’s loss of directional control while landing, which resulted in a landing gear collapse.

## Other reports on N663K (1)

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

- [Accident 19900331007359A](https://openairdocs.org/incident/19900331007359A), Mar 31, 1990: Strman 4D (N663K), Burns, OR, Substantial damage. Ground looped landing tail wheel aircraft. Blamed locked brake.

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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