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CEN11CA289 · Rans S12 XL

9 Apr 2011 · Fort Collins, CO, United States

Rans S12 XL · Accident: aerodynamic stall/spin during landing

From Yankee Field (CO53) to Yankee Field (CO53)

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Event

NTSB case
CEN11CA289
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
0 · all aircraft and ground
Ground fatalities
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Rans S12 XL

Aircraft type
Rans S12
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N3581S
Operator
Unknown
Onboard fatalities
Unknown
Route
From Yankee Field (CO53), Fort Collins, COTo Yankee Field (CO53), Fort Collins, CO
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Landing
Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Aerodynamic stall/spin
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Aircraft › Aircraft oper/perf/capability
  • Personnel issues › Action/decision

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

The pilot reported that he was conducting an off-airport precautionary landing due to an unanticipated gusting wind and turbulence. Just before touchdown the pilot made a sudden right turn to avoid a single-wire electric livestock fence when the right wing stalled and he lost control. The airplane then impacted terrain causing substantial damage to the fuselage frame, both wings, and the engine mount. The pilot stated that he had more experience in weight-shift control light sport airplanes and that the throttle in that type of aircraft was controlled with the right foot. He commented that during the sudden right turn he might have inadvertently applied full right rudder thinking that he was applying full throttle. The pilot reported no preimpact mechanical anomalies or failures with the airplane.

Probable cause

The pilot's inadvertent application of full right rudder during landing, which resulted in an aerodynamic stall and impact with terrain.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record CEN11CA289
Event ID
20110415X80220
Case number
CEN11CA289
Dataset
full-current
Source SHA-256
5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 5018a16345f56b2700e7d87650b4adb38e78d050f5705e12ed0521d5175758d2; retrieved 2026-09-15T16:04:03.814Z.