Allegiant Air Flight 485
Airbus A320-214 · Accident: near midair/TCAS alert/loss of separation en route
From Fort Lauderdale Hollywood International Airport (KFLL) to Blue Grass Airport (KLEX)
Event
- NTSB case
- DCA23LA395
- 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
- Event fatalities
- Unknown
- 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 A320-214
- Aircraft type
- Airbus A320
- 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
- N229NV
- Operator
- Allegiant Air
- Onboard fatalities
- Unknown
- Route
- From Fort Lauderdale Hollywood International Airport (KFLL), Fort Lauderdale, FLTo Blue Grass Airport (KLEX), Lexington, KY
- Aircraft age
- About 26 years (built 1997)
- 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 · 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
- Near midair/TCAS alert/loss of separation
- 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
No findings designated as a cause are recorded in the NTSB data yet.
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
Allegiant Air flight 485 flight crew preformed a climb maneuver in response to a Traffic Collison Avoidance System (TCAS) advisory resulting in a serious injury to a flight attendant onboard. Flight 485 was at flight level (FL) 230 [23,000 feet] and enroute to the Blue Grass Airport (LEX), Lexington, Kentucky when the event occurred. The flight crew reported they had been on a generally northern course since their departure from Fort Lauderdale-Hollywood International Airport (FLL) when they received a heading of 100 degrees from air traffic control (ATC). Jacksonville Center closed the airspace to the North in response to severe weather in the area. Minutes later, the flight crew reported receiving a TCAS traffic advisory (TA) followed immediately by a resolution advisory (RA) to which the flight crew followed the given climb rate, to avoid another aircraft in their path. After the flight crew returned to FL230, they received a call from the lead flight attendant to report that the unexpected climb caused one flight attendant to be “knocked to the ground” and was injured. ATC declared an emergency for the flight after the flight crew reported the injury of the flight attendant and the flight subsequently diverted back to FLL due to significant weather over central Florida.
Probable cause
The flight crew’s abrupt change in pitch in response to a traffic collision advisory system resolution advisory that resulted in a serious injury to a flight attendant.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record DCA23LA395
- Event ID
- 20230804192791
- Case number
- DCA23LA395
- 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, damage. Values present in the bulk record are kept.
- The date is the UTC date the NTSB stores; the local time zone is not recorded, so the local date may differ by a day.
- API snapshot SHA-256: 0893241df0bd62a006bcbc47ed37dc845db66ca9d6fcc9494367c037698a147a; retrieved 2026-09-16T17:57:41.210Z.