CEN12FA571 · Piper PA-24-250
Piper PA-24-250 · Accident: loss of control in flight en route
From Sumers Airpark (KGWS) to Saint Paul, MN
Event
- NTSB case
- CEN12FA571
- 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
- Visual Meteorological Cond
Piper PA-24-250
- Aircraft type
- Piper PA-24
- 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
- N7774P
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Sumers Airpark (KGWS), Glenwood Springs, COTo Saint Paul, MN
- 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
- 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
- Personnel issues › Physical
- Personnel issues › Task performance
Approximate · Coordinates from the NTSB case API, not marked as estimated; no uncertainty radius is established.
NTSB narrative
The student pilot departed on a cross-country flight and was not in contact with air traffic controllers; no flight plan had been filed. Log data recovered from the handheld global positioning system (GPS) unit depicted a flight track consistent with the accident flight and logged a maximum speed of 135 knots and a maximum GPS altitude of 18,379 feet. The airplane's wreckage was located in a remote valley the following afternoon. An examination of the engine and airframe revealed no anomalies. Damage to the airplane and ground scars were consistent with the airplane being in a stall and flat spin at the time of impact. During the examination of the wreckage, marijuana and an opened six-pack of beer were found; the beer bottles were located in the front of the airplane, within the pilot's reach. Toxicological testing found both alcohol and marijuana in the pilot's system. The amount of alcohol in the pilot's system would have significantly impaired the pilot's performance. In addition, the amount of marijuana and its metabolite found in the pilot's system indicated he was actively smoking in the hour before the accident; this would also have significantly impaired his ability to control the airplane. Both of these intoxicants may have impaired his judgment and contributed to the pilot's decision to fly above 18,000 feet in an aircraft not equipped with oxygen. The resulting hypoxia also impaired his ability to control the airplane.
Probable cause
The student pilot's impairment from alcohol, marijuana, and hypoxia, which adversely affected his ability to maintain control of the airplane.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN12FA571
- Event ID
- 20120826X82523
- Case number
- CEN12FA571
- 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, coordinates. 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: 333546c5191fe72d14f7a2cb9f4c29a999569a621aac856ebaa7dbe75ec0b78d; retrieved 2026-09-13T22:35:26.385Z.