# Accident 20131127025559A: Biesemeier David I SMYTH SIDEWINDER, Longmont, CO, November 27, 2013

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: November 27, 2013, 12:47 local time
- Place: Longmont, CO
- Damage: Destroyed
- Phase of flight: Maneuver
- Operating rules: General operating rules (Part 91)
- Location: 40.0198° N, 105.2493° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=40.0198&lon=-105.2493&mi=10
- Aircraft: N3786A, a cancelled registration (https://openairdocs.org/deregistered/N3786A-2015-04-01) (OpenAirDocs)
- Registry model: Biesemeier David I SMYTH SIDEWINDER (registry code 0564959, https://openairdocs.org/model/biesemeier-david-i-smyth-sidewinder) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: BIESEMEIER DAVID I SMYTH SIDEWINDER
- Reported engine: LYCOMING 0-320 SERIES
- People aboard: 1
- Fatal injuries: 1
- Other injuries: 0
- Pilot certificates: Private pilot
- NTSB investigation: [NTSB CEN14FA072](https://openairdocs.org/ntsb/CEN14FA072) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20131127025559A

## Narrative

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

ON 11/27/2013, AT APPROXIMATELY 1245 MST, AIRCRAFT N3786A, AN EXPERIMENTAL HOME-BUILT SMYTHE SIDEWINDER, EXPERIENCED AN IN-FLIGHT BREAKUP.  THE FUSELAGE IMPACTED THE GROUND APPROXIMATELY 1/4 MILE BEYOND THE INITIAL BREAK-UP LOCATION.  THE AIRCRAFT WAS DESTROYED AND THE SOLE OCCUPANT WAS FATALLY INJURED.  THE WEATHER AT THE TIME WAS VMC WITH VERY LIGHT WINDS.

## 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 CEN14FA072](https://openairdocs.org/ntsb/CEN14FA072), Nov 27, 2013: Biesemeier David I Smyth Sidewinder (N3786A), Boulder, CO, destroyed, 1 fatal. Probable cause: The pilot’s abrupt maneuver, which exceeded the structural limits of the left wing and resulted in its in-flight separation.

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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