NTSB CAROL · Event
Event DCA16CA052
Registry · N7733B
FAA Aircraft Registry record.
Make / Model
BOEING 737-76N
Year of manufacture
2006 · 9 years old at event
Engine
CFM INTL CFM56-7B22
Seats / Engines
149 seats · 2 engines
Last airworthiness date
20060921
ADS-B equipped
Yes — Mode-S AA76EF
Registrant of record
SOUTHWEST AIRLINES CO
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
An inadvertent encounter with clear air turbulence.
Factual narrative
On December 26, 2015, at about 1238 pacific standard time, Southwest Airlines flight 5895, a Boeing 737-700, N7733B, encountered moderate turbulence while descending for approach to San Diego International Airport (KSAN), San Diego, California. Of the 148 passengers and crewmembers onboard, one flight attendant received serious injuries and the airplane was not damaged. The flight was operating under 14 CFR Part 121 as a regularly scheduled passenger flight from Denver International Airport (KDEN), Denver, Colorado, to KSAN. The flight crew stated that turbulence encounter occurred as the airplane was descending through about 14,000 feet and the seatbelt sign was illuminated. At the time of the turbulence encounter, the three flight attendants (FA) were standing in the aft galley preparing to secure the cabin. When the turbulence began, all three FAs attempted to brace themselves but one FA was unable to grab an assist handle by the galley when she thrown to the floor. She was unable to stand back up on her own and required assistance from the other FAs. After landing, the injured FA was transported to a local hospital where she was diagnosed with a fractured ankle. On December 26, 2015, at about 1238 pacific standard time, Southwest Airlines flight 5895, a Boeing 737-700, N7733B, encountered moderate turbulence while descending for approach to San Diego International Airport (KSAN), San Diego, California. Of the 148 passengers and crewmembers onboard, one flight attendant received serious injuries and the airplane was not damaged. The flight was operating under 14 CFR Part 121 as a regularly scheduled passenger flight from Denver International Airport (KDEN), Denver, Colorado, to KSAN. The flight crew stated that turbulence encounter occurred as the airplane was descending through about 14,000 feet and the seatbelt sign was illuminated. At the time of the turbulence encounter, the three flight attendants (FA) were standing in the aft galley preparing to secure the cabin. When the turbulence began, all three FAs attempted to brace themselves but one FA was unable to grab an assist handle by the galley when she thrown to the floor. She was unable to stand back up on her own and required assistance from the other FAs. After landing, the injured FA was transported to a local hospital where she was diagnosed with a fractured ankle. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Environmental issues-Conditions/weather/phenomena-Turbulence-Clear air turbulence-Effect on personnel - C
Verbatim from NTSB's published report. Source file
NTSB_2015_DCA16CA052.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).
Browse the full corpus — academia portal ↗