ATL01LA049
2001-04-17 · Jacksonville, Florida, United States · Serious · 1 aircraft · Status: Completed
Airport JAX
Aircraft involved
Probable cause & findings
The flight dispatcher failure to provide the flight crew with current in-flight turbulence information that resulted in the in-flight encounter with turbulence during climb. A factor was the pilots failure to obtain adequate weather information.
Factual narrative
About 0830 eastern daylight time, on April 17, 2001, a Boeing Aircraft Company 737-200, N253UA, operated by US Airways as Flight 2686, encountered severe turbulence during climb out from Baltimore-Washington International Airport in Baltimore, Maryland. Flight 2686 was operated under the provisions of Title 14 CFR Part 121, as a scheduled, domestic passenger flight from Baltimore, Maryland, to Jacksonville, Florida. The flight departed Baltimore-Washington, Maryland, at an undetermined time. There were four crewmembers and 73 revenue passengers on board. One cabin attendant received serious injuries, and another cabin attendant received minor injuries. Undetermined weather conditions at altitude prevailed at the time of the accident. The flight operated under instrument flight rules with a flight plan filed. The flight continued to Jacksonville, Florida, without further incident. According to the pilot, no significant forecasts or pilot reports for turbulent weather were given during the preflight weather briefing by the dispatcher for his route of flight. Approximately 12-15 minutes after takeoff, at an altitude of 19,000 feet, the airplane unexpectedly encountered several areas of moderate turbulence. The "FASTEN SEAT BELT " sign was illuminated at the time of the encounter and the flight attendants were in the cabin preparing to serve the passengers. As they continued their duties, one flight attendant was thrown to the floor during an encounter. After the pilot instructed the flight attendants to take their seats, he was told that one flight attendants had sustained an ankle injury. The flight continued and landed at Jacksonville, Florida, without further incident. A review of National Weather Service information revealed that an AIRMET issued at 0945 hours forecast " occasional moderate turbulence between FL240 and FL350 associated with an upper trough. Conditions expected to continue beyond 1000 hours thru 1600 hours." The area covered in the AIRMET included Maryland and Virginia. A pilot report issued at 0736 hours over Baltimore, Maryland, by a Boeing 757 stated "moderate turbulence was encountered during the climb between 7,000 and 12,000 feet and light turbulence above. " The pilot was not informed of the 0736 pilot report. Approximately 12-15 minutes after takeoff during climb, flight 2686 experienced moderate turbulence. The seat belt sign was illuminated at the time. One of the flight attendants was thrown to the floor and received serious injuries during the encounter. According to the pilot, the flight crew was not informed of the 0736 pilot report of turbulence in the vicinity of the accident. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2001_ATL01LA049.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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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
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- 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).