DCA21LA164
2021-06-25 · New Orleans, Louisiana, United States · Serious · 1 aircraft · Status: Completed
Airport MSY
Current FAA registration · N926UW
- Make / Model
- AIRBUS A321-231
- Year of manufacture
- 2015 · 6 years old at event
- Engine
- IAE V2533-A5
- Seats / Engines
- 379 seats · 2 engines
- Last airworthiness date
- 20150605
- ADS-B equipped
- Yes — Mode-S ACD64B
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
An inadvertent encounter with severe turbulence during cruise flight that caused a flight attendant to fall and fracture his ankle.
Factual narrative
American Airlines flight 2401 encountered severe turbulence while in cruise flight at FL310 and a flight attendant fractured his ankle. The captain was the pilot flying (PF) and the first officer was monitoring. Ride conditions were smooth with no reports of turbulence in the area and the crewmembers had the weather radar turned off. The flight was in day visual meteorological conditions (VMC) with the visibility greater than 20 miles. About 20 miles NW of the REDFN waypoint, near airway Q105, the flight experienced a single “jolt” of severe turbulence, which caused the autopilot to disconnect, and the airplane to roll about 30 degrees to the right and climb about 300 feet. The PF took control and returned the airplane to its assigned altitude and reengaged the autopilot. When the turbulence occurred beverage service had recently concluded, and two flight attendants were in the aisle collecting trash. One flight attendant was in the aft galley securing service items and was thrown to the ceiling and fell, fracturing his left ankle. Ten passengers who were not seated or who were not using their seatbelts sustained minor injuries. The fasten seatbelt indication to passengers was turned off. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- — Environmental issues-Conditions/weather/phenomena-Turbulence-Clear air turbulence-Effect on personnel
Verbatim from NTSB's published report. Source file
NTSB_2021_DCA21LA164.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
- TallyAero Live Wire Aviation press
- NTSB CAROL Agency ↗
- NTSB Docket Agency ↗
- Aviation Safety Network Aviation press ↗
- Kathryn's Report Aviation press ↗
- Aviation Herald Aviation press ↗
- AVweb Aviation press ↗
- Pilots of America Community ↗
- Reddit /r/flying Community ↗
- FlightAware Aviation press ↗
- AOPA accident database Aviation press ↗
- Google News News ↗
- DuckDuckGo News ↗
Related research
Matched on aircraft type or causal vocabulary (turbulence, autopilot). All research papers
- arXiv 2026 · arXiv preprint Direct Numerical Simulations of Ice-Ocean Boundary Turbulence
Turbulent heat and freshwater transport at ice-ocean interfaces controls glacier and iceberg melt rates, yet the underlying physics remains poorly constrained.
- arXiv 2025 · arXiv preprint ROSflight 2.0: Lean ROS 2-Based Autopilot for Unmanned Aerial Vehicles
ROSflight is a lean, open-source autopilot ecosystem for unmanned aerial vehicles (UAVs). Designed by researchers for researchers, it is built to lower the barrier to entry to UAV research and acceler…
- arXiv 2025 · arXiv preprint ROSplane 2.0: A Fixed-Wing Autopilot for Research
Unmanned aerial vehicle (UAV) research requires the integration of cutting-edge technology into existing autopilot frameworks.
- arXiv 2025 · arXiv preprint Explainable LiDAR 3D Point Cloud Segmentation and Clustering for Detecting Airplane-Generated Wind Turbulence
Wake vortices - strong, coherent air turbulences created by aircraft - pose a significant risk to aviation safety and therefore require accurate and reliable detection methods.
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER) Political Turbulence and Aviation Safety: A Cross-National Analysis of Political Stability's Effects on Aviation Accidents
To what extent does political stability affect aviation safety? This research aims to link domestic political conditions and public safety through the consideration of aviation accident frequency.
- arXiv 2024 · arXiv preprint Does small-scale turbulence matter for ice growth in mixed-phase clouds?
Representing the glaciation of mixed-phase clouds in terms of the Wegener-Bergeron-Findeisen process is a challenge for many weather and climate models, which tend to overestimate this process because…