NTSB CAROL · Event
Event DCA87MA012
Aircraft involved
Factual narrative
ON NOVEMBER 13, 1986, THE REAR MAIN SPAR OF THE RIGHT WING FAILED AS DELTA FLT 194 TOUCHED DOWN ON RWY 29 AT NEWARK AIRPORT. THE PILOTS STATED THAT THERE WAS MODERATE TURBULENCE ON FINAL APPROACH AND INITIAL TOUCHDOWN WAS ON THE RIGHT MAIN GEAR FIRST. THE TOUCHDOWN WAS FIRM BUT NOT HARD WHICH WAS CONFIRMED FROM THE 1.4G RECORDED ON THE DFDR. THE 1.4G FORCE IS WELL WITHIN THE LANDING GEAR CERTIFICATION LIMITS. THE SPAR WEB FAILURE WAS CAUSED BY A FATIGUE CRACK THAT ORIGINATED AT A 'HI - LOC' FASTENER HOLE LOCATED AT THE LOWER INBOARD CORNER OF A DOUBLER THAT SURROUNDS THE FUEL FILLER VALVE WHICH IS MOUNTED VERTICALLY ON THE SPAR WEB. THE FATIGUE ZONE IN THE SPAR WEB HAD PROGRESSED ABOUT 6 3/4 INCHES BEFORE THE WEB FAILED AS THE AIRPLANE TOUCHED DOWN. THE FRACTURE IN THE SPAR WEB EXTENDED DIAGNALLY DOWNWARD AND OUTBOARD AT 45 DEGREES FROM INBOARD WING STATION 241.0 TO INBOARD STATION 293.5. THE FLIGHT CREW DID NOT REPORT ANY AIRPLANE MALFUNCTION DURING THE FLIGHT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1986_DCA87MA012.txt.
Findings + structured fields enriched from FAA avall.mdb.
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Related research
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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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