NTSB CAROL · Event
Event DEN89LA193
Registry · N84164
FAA Aircraft Registry record.
Make / Model
AERONCA 7AC
Seats / Engines
2 seats · 1 engine
Last airworthiness date
19590130
ADS-B equipped
Yes — Mode-S AB86D7
Registrant of record
WOMACK ABNER
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
A SUBMERGED OBJECT IN THE LANDING AREA.
Factual narrative
THE ATP PLT WAS PRACTICING 'SPLASH AND GO LANDINGS' ON LAKE POWELL WITH TWO PSGRS. HE LANDED TO THE WEST IN WINDS HE ESTIMATED WERE LESS THAN 5 KTS. HE SAID THAT DURING THE LANDING RUN, THE ACFT STRUCK AN UNSEEN SUBMERGED OBJECT, POSSIBLY A LOG FLOATING BENEATH THE SURFACE; THE ACFT SANK IN 130 FT OF WATER. THE OBJECT PENETRATED THE HULL BETWEEN THE RUDDER PEDALS AND BROKE BOTH OF THE PLT'S LEGS. HE SAID THE IMPACT SEPARATED THE CABIN FROM THE EMPENNAGE. THE FRONT SEAT PSGR WAS EJECTED THRU THE WINDSHIELD ALONG WITH THE SEAT, SEAT BELT & SHOULDER HARNESS ATTACHED. WITNESSES REPORTED THAT THE ACFT NOSED OVER AND CAME TO REST INVERTED IN THE WATER. ALL 3 OCCUPANTS WERE RESCUED BY A PASSING SKI BOAT. THE PLT WAS AIR LIFTED TO PAGE, ARIZONA, FOR EMERGENCY TREATMENT. A POST-SALVAGE INVESTIGATION VERIFIED HULL PENETRATION IN THE AREA OF THE PLT'S FEET. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1989_DEN89LA193.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 (icing). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- NASA NTRS 2026 · Contractor Report (CR)
Icing Physics Studies Using the 3D SIDRM Test Article: 2023 Icing Tests Analysis
In-flight icing is an important safety issue and is a factor that affects aircraft design and performance. Newer regulations are driving a need for improvements in airframe and engine icing simulation…
- arXiv 2025 · arXiv preprint
Multi-Agent Deep Reinforcement Learning for UAV-Assisted 5G Network Slicing: A Comparative Study of MAPPO, MADDPG, and MADQN
The growing demand for robust, scalable wireless networks in the 5G-and-beyond era has led to the deployment of Unmanned Aerial Vehicles (UAVs) as mobile base stations to enhance coverage in dense urb…
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER)
A Mathematical Model on the Temporal Dynamics of Aviation Competitive Pricing
This study investigates the competitive dynamics of airport pricing using U.S. airport data to validate the findings. It employs linear and nonlinear ordinary differential equation models to analyze t…
- NASA NTRS 2025 · Presentation
NASA Icing Update – March 2025
This NASA Icing Update was prepared for presentation to the SAE International AC-9C Inflight Icing Technology Committee. This update includes the following topics: planned Rotational Icing Scaling tes…
- arXiv 2024 · arXiv preprint
An energy-stable phase-field model for droplet icing simulations
A phase-field model for three-phase flows is established by combining the Navier-Stokes (NS) and the energy equations, with the Allen-Cahn (AC) and Cahn-Hilliard (CH) equations and is demonstrated ana…
- NASA NTRS 2024 · Presentation
NASA Icing Update – Oct 2024
This presentation provides a status update on select NASA icing research activities for the SAE AC-9C Icing Technical Committee Meeting on Oct 21, 2024.
Browse the full corpus — academia portal ↗