NTSB CAROL · Event
Event NYC91LA015
Aircraft involved
Probable cause & findings
FAILURE OF BOTH PILOTS TO MAINTAIN VISUAL SEPARATION IN THE LANDING TRAFFIC PATTERN. FACTORS TO THIS MID-AIR COLLISION WERE THE EXCESSIVE NUMBER OF AIRPLANES IN THE AIRPORT TRAFFIC PATTERN AND RADIO FREQUENCY CONGESTION.
Factual narrative
THE TWO CESSNA 152'S COLLIDED WHILE OPERATING IN A CONGESTED AIRPORT TRAFFIC PATTERN. THERE WERE 7 AIRPLANES IN THIS PATTERN AT THE SAME TIME. THE AIRPORT HAS NO CONTROL TOWER. THE KENT STATE UNIVERSITY FLIGHT TRAINING COORDINATOR SAID, 'THERE WAS A GREAT DEAL OF TRANSIENT TRAFFIC THIS DAY...THE RADIO FREQUENCY WAS SATURATED WITH RADIO CALLS.' THE PILOTS LOST VISUAL CONTACT WITH EACH OTHER, BECAUSE THERE WERE SO MANY AIRPLANES AND SOME OF THESE WERE OT FAIMLIAR WITH THE NORMAL TRAFFIC PATTERN. AFTER THE MID AIR COLLISION, BOTH AIRPLANES WERE ABLE TO LAND SAFELY. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1990_NYC91LA015.txt.
Findings + structured fields enriched from FAA avall.mdb.
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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 (mid-air collision). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- Embry-Riddle Scholarly Commons 2025 · Journal article (IJAAA)
Invisible Aircraft in U.S. Airspace: Regulatory Gaps and Mid-Air Collision Risk for Part 121 Operators
Scheduled air carrier aircraft operate at large and small commercial airports across the U.S. National Airspace System. These turbine-powered aircraft fly at high speeds during departure and approach,…
- Semantic Scholar 2023 · Article (Reliability Engineering & System Safety)
Bayesian network model of aviation safety: Impact of new communication technologies on mid-air collisions
- Embry-Riddle Scholarly Commons 2022 · Faculty research project
Small UAS (sUAS) Mid-Air Collision (MAC) Likelihood
This research focuses on sUAS MAC likelihood analysis with general aviation (GA) and commercial aircraft. Because severity research varies based on where a collision occurred on a manned aircraft, thi…
- NASA NTRS 2019 · Conference Paper
Analyzing a Mid-Air Collision Over the Hudson River
On August 8, 2009, a private airplane collided with a sightseeing helicopter over the Hudson River near Hoboken, New Jersey.
- arXiv 2025 · arXiv preprint
Intent-Aware MPC for Aircraft Detect-and-Avoid with Response Delay: A Comparative Study with ACAS Xu
In this paper, we propose an intent-aware Model Predictive Control (MPC) approach for the remain-well-clear (RWC) functionality of a multi-agent aircraft detect-and-avoid (DAA) system and compare its …
- arXiv 2024 · arXiv preprint
Multi-Aircraft Scheduling Optimization in Urban Environments
With the increasing development of intelligent transportation systems and advancements in aviation technology, the concept of Advanced Air Mobility (AAM) is gaining attention.
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