NTSB CAROL · Event
Event NYC97LA040
Aircraft involved
Probable cause & findings
an encounter with unforecast clear air turbulence and the flight attendant's failure to use the seat belt.
Factual narrative
On January 7, 1997, at 0834, an Airbus Industries A300B4-605R, N50051, operated by American Airlines as Flight 2009, encountered turbulence while operating over the Atlantic Ocean. One flight attendant received serious injuries, 3 flight attendants received minor injuries, and 2 passengers received minor injuries. The remaining 252 passengers, and 5 crewmembers were not injured. The airplane received minor damage. Visual meteorological conditions prevailed and the flight which was operated under 14 CFR Part 121, had departed Philadelphia, Pennsylvania at 0800, and was destined for San Juan, Puerto Rico. Flight 2009 was cruising at FL330 (33,000 feet), about 30 miles south of Champs intersection, when it encountered the turbulence. The seatbelt sign was illuminated The injured flight attendants were working in the forward and aft galleys, in preparation for cabin service. Both passengers were seated in the rear of the airplane and had their seatbelts unfastened at the time of the turbulence. A cart in the aft galley was thrown into the air and contacted the overhead ceiling. The captain was notified of the injuries and elected to divert to John F. Kennedy Airport, Jamaica, New York, where an uneventful landing was made. The airplane then taxied to the gate where the passengers were deplaned through the jetway. One passenger and the two flight attendants who were working in the aft galley were taken to local hospitals where they were treated and released. One flight attendant was found to have a fractured ankle. There were no SIGMETS in effect for turbulence. A readout of the flight data recorder revealed that the flight had encountered two pulses which were separated by 8 seconds. Each pulse had a maximum value of +1.6 Gs, and minimum value of +0.25 Gs, as measured on the vertical axis of the airplane. The flight was cruising at FL330 in visual meteorological conditions. There were no SIGMETS for turbulence in effect. Flight attendants were working in the forward and aft galleys in preparation for meal service when the flight encountered turbulence. According to the flight data recorder, the turbulence consisted of two pulses which were separated by 8 seconds. Each pulse had a maximum value of +1.6 g's as measured on the vertical axis of the airplane. The seatbelt sign was illuminated. Three flight attendants received minor injuries and a fourth was seriously injured with a fractured ankle. Two passengers in the rear of the airplane whose seat belts were unfastened received minor injuries. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1997_NYC97LA040.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (turbulence). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- 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.
- 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 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.
- 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).
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