United Airlines Airbus A319-131 accident
Airbus A319-131 · Accident: in flight encounter with weather en route
From Jackson Hole Airport (JAC) to Denver International Airport (DEN)
Event
- NTSB case
- DEN06LA095
- 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
- Airline
- 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
Airbus A319-131
- Aircraft type
- Airbus A319
- 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
- N839UA
- Operator
- United Airlines
- Onboard fatalities
- Unknown
- Route
- From Jackson Hole Airport (JAC), Jackson, WYTo Denver International Airport (DEN), Denver, 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 121: Air Carrier
- 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 · descent
- First occurrenceThe 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
- In flight encounter with weather
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- None
Cause areas
- Weather condition › Turbulence, clear air
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The crew reported that the flight had been smooth, the "fasten seatbelt sign" was off, and passengers were allowed to get up and move around the cabin. According to the passenger, she was exiting the aft lavatory when the airplane encountered some turbulence. She stated that she felt as if she was being "jammed" to the floor, and felt her right ankle and leg "go" before she fell to the floor. She sustained serious injury to her right ankle. There were no airmen's meteorological information or significant meteorological information issued for turbulence for the area at the time of the accident. No other injuries were reported and the airplane landed without further incident.
Probable cause
the flight's encounter with unexpected turbulence, which resulted in a passenger sustaining a fractured ankle.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record DEN06LA095
- Event ID
- 20060711X00910
- Case number
- DEN06LA095
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (5)
- 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, damage. 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: d96d8958a3c0245f3ff93cf446ceacc46662a55161b24989639aeb337df7f041; retrieved 2026-09-18T14:52:05.980Z.
- The NTSB's operator name is blank for N839UA; the operator shown is the name the NTSB's other records give its FAA operator code, UALA.