ERA18FA092 · Quest Aircraft Company LLC KODIAC 100
Pegasus of Montana Quest Aircraft Company LLC KODIAC 100 · Accident: loss of control in flight while maneuvering
From an unrecorded airport to Mount Royal Airport (3FL0)
Event
- NTSB case
- ERA18FA092
- 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
- 2 · 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
Quest Aircraft Company LLC KODIAC 100
- Aircraft type
- Quest KODIAC 100
- 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
- N969TB
- Operator
- Pegasus of Montana
- Onboard fatalities
- Unknown
- Route
- From not recordedTo Mount Royal Airport (3FL0), Georgetown, FL
- Aircraft age
- About 2 years (built 2016)
- 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
- Maneuvering
- 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
- Loss of control in flight
- 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
- Environmental issues › Conditions/weather/phenomena
- Personnel issues › Psychological
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The private pilot and pilot-rated passenger were returning to the airport in night visual meteorological conditions with a cloud ceiling about 1,500 ft above ground level. Radar data indicated that the airplane overflew the airport and completed a 360° descending right turn and overflew the airport again before entering an approximate 180° left climbing turn toward and over an unlighted area within a densely-wooded national forest. The airplane continued the left turn and entered a descent to impact in a river about 1 mile from the airport. All major components of the airplane were recovered from the river except the outboard section of the left wing and the left aileron. An examination of the airframe and engine revealed no mechanical malfunctions or failures that would have precluded normal operation.
Because each of the two pilots onboard would have been capable of safely landing the airplane, it is unlikely that an acute event from either occupant's heart disease contributed to the accident.
The night conditions, which included overcast clouds that would have obscured the nearly full moon, and the pilots' maneuvering for landing over an area devoid of cultural lighting provided conditions conducive to the development of spatial disorientation. It is likely that the pilots experienced a "black hole" illusion while maneuvering to align with the runway for landing, which resulted in an uncontrolled descent and impact with water.
Probable cause
The pilots' spatial disorientation while maneuvering for landing in night conditions over unlighted terrain, which resulted in an uncontrolled descent and impact with water.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA18FA092
- Event ID
- 20180227X14047
- Case number
- ERA18FA092
- 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: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2018-02-28.
- API snapshot SHA-256: 5a5ec954fb1c725c8da04bd5be3e20606c682b0c5eb0e6e657fa212a74cc9c1b; retrieved 2026-09-15T06:35:08.997Z.