DCA25LA044
2024-11-15 · Tokyo, Other Foreign, Japan · Serious · 1 aircraft · Status: Completed
Current FAA registration · N833AA
- Make / Model
- BOEING 787-9
- Year of manufacture
- 2017 · 7 years old at event
- Engine
- GE GENX-1B74/75/
- Seats / Engines
- 422 seats · 2 engines
- Last airworthiness date
- 20171205
- ADS-B equipped
- Yes — Mode-S AB6380
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
An encounter with turbulence while in cruise flight, resulting in serious injuries to two flight attendants.
Factual narrative
American Airlines flight 168, encountered unanticipated moderate to severe turbulence during cruise at 34,000 feet (FL340) while enroute to John F. Kennedy International Airport (JFK), New York, New York from Tokyo Haneda International Airport (HND), Tokyo, Japan. As a result, two flight attendants (FAs) sustained serious injuries. Before departing, the flight crew stated they all reviewed the weather forecast on their weather briefing app before departure and noted no significant turbulence or convective activity. The flight departed HND in Visual Meteorological Conditions (VMC) and climbed on the assigned standard instrument departure procedure and leveled off at FL340 in VMC above an overcast layer. The flight crew stated the flight was smooth during the climb out, with occasional “very light” turbulence. During cruise, the captain and the first officer recalled monitoring the weather radar and did not detect any convective activity in the area. Approximately 30-40 minutes after departure, the overcast area rose into the airplane’s altitude. At that time, the FAs were moving around the galley and cabin for service. The captain made an announcement for the FAs to be seated, but the airplane encountered moderate to severe turbulence. After the turbulence subsided, the captain was informed that two FAs had been injured and were unable to continue their duties. Neither requested immediate medical attention. The flight continued uneventfully to JFK, where the injured FAs were met by company personnel and later sought medical evaluation. One FA was diagnosed with a fractured tibia, and another with a fractured ankle. Two additional FAs later reported minor injuries. No passengers were injured. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- — Environmental issues-Conditions/weather/phenomena-Turbulence-Convective turbulence-Effect on personnel
Verbatim from NTSB's published report. Source file
NTSB_2024_DCA25LA044.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.
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Related research
Matched on aircraft type or causal vocabulary (turbulence). 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 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…
- arXiv 2023 · arXiv preprint Effects of electrostatic interaction on clustering and collision of bidispersed inertial particles in homogeneous and isotropic turbulence
In sandstorms and thunderclouds, turbulence-induced collisions between solid particles and ice crystals lead to inevitable triboelectrification.
- SKYbrary (Eurocontrol) 2023 · SKYbrary article Wake Vortex Turbulence — SKYbrary Knowledge Base
SKYbrary wake vortex turbulence comprehensive article — generation mechanics, dissipation factors, separation standards (ICAO LIGHT/MEDIUM/HEAVY/SUPER + recategorisation RECAT-EU).