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DEN08LA139 · Dickey RV-6A

11 Aug 2008 · Muskogee, OK, United States

Dickey RV-6A · Accident: VFR encounter with IMC en route

From Fayette County Airport (FYE) to Hutchinson County Airport (BGD)

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Event

NTSB case
DEN08LA139
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
1 · 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
Instrument Meteorological Cond

Dickey RV-6A

Aircraft type
Dickey RV-6
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
N22163
Operator
Ron S. Dickey · private individual
Onboard fatalities
Unknown
Route
From Fayette County Airport (FYE), Somerville, TNTo Hutchinson County Airport (BGD), Borger, TX
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
En route · cruise
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
VFR encounter with IMC
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Cause areas

  • Aircraft › Aircraft oper/perf/capability
  • Environmental issues › Conditions/weather/phenomena
  • Personnel issues › Action/decision
  • Personnel issues › Psychological

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

NTSB narrative

The instrument-rated pilot was flying under visual flight rules on a cross-country flight and encountered instrument meteorological conditions. A review of the pilot's logbook showed that he had not flown in actual instrument conditions for over five years. The pilot last logged simulated instrument time during his flight review in February, 2007, and prior to then had not logged simulated instrument time since September, 2004. According to the pilot's wife, she thought that the airplane was equipped for instrument flight, but this could not be verified. Radar data showed the airplane changing altitude and making large heading changes during the last ten minutes of flight. The last four radar returns showed the airplane descending in a right turn from 8,500 feet msl to zero altitude in 23 seconds. Witnesses heard the airplane engine running and saw the airplane exit the clouds in a steep nose-down attitude and impact the terrain. Examination of the airplane disclosed no preimpact anomalies. The airplane's turning ground track and the challenging visibility conditions were conducive to the onset of pilot spatial disorientation. The airplane's rapid, near-vertical descent is consistent with the pilot's loss of control of the airplane because of spatial disorientation.

Probable cause

The pilot's improper decision to continue flight under visual flight rules into an area of reduced visibility weather conditions, which resulted in the pilot's spatial disorientation and subsequent loss of aircraft control. Contributing to the accident was the pilot's lack of recent experience flying in instrument conditions.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record DEN08LA139
Event ID
20080814X01242
Case number
DEN08LA139
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: 27cae0c1f44b9c313da8b442ea48691e702dd4b4328ac443dd5bb793f8573a0e; retrieved 2026-09-13T19:20:55.161Z.