NTSB CAROL · Event
Event ATL93LA137
Registry · N850JW
FAA Aircraft Registry record.
Make / Model
SOCATA TBM 700
Year of manufacture
2011
Engine
P&W CANADA PT6A-66 SER (850 hp)
Seats / Engines
7 seats · 1 engine
Last airworthiness date
20111201
ADS-B equipped
Yes — Mode-S ABA835
Registrant of record
PROP IT UP LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
THE PILOT'S FAILURE TO PROPERLY USE THE CARBURETOR HEAT CONTROL WHICH RESULTED IN THE FORMATION OF CARBURETOR ICE.
Factual narrative
On July 29, 1993, at 1431 central daylight time, a Ward Long EZE, N850JW, collided with the ground while attempting a forced landing three miles south of Smyrna Airport, near Murfreesboro, Tennessee. The personal flight operated under 14 CFR Part 91 with no flight plan filed. Visual weather conditions prevailed at the time of the accident. The airplane was substantially damaged and the pilot was fatally injured. The flight departed Smyrna at approximately 1215 hours. The pilot had been flying about two hours and was enroute back to Smyrna. While in a letdown through 2,700 feet, the pilot issued a position report to Smyrna Tower, 15 miles southeast. The pilot was issued the current weather information and asked to report over the Nissan plant for runway 32. Approximately 90 seconds later the pilot reported that his engine was "gone," and he planned forced landing to a road. The local police and fire departments were notified of the pilot's emergency and his location. As the airplane approached the intended landing area, the pilot changed his landing site to an adjacent field. Examination of the airplane failed to reveal a mechanical problem. The engine examination also failed to reveal a problem, and it operated normally through 2200 rpm. Examination of the cockpit area revealed that the carburetor heat lever was in the cold position. (see attached FAA Inspector's Statement) According to icing probability curves, weather conditions favorable for the formation of carburetor ice existed at the time of the accident.(see attached icing probabilty curves) The pilot's toxicological examinations were negative for alcohol and drugs. REPORTEDLY, THE PILOT HAD FLOWN APPROXIMATELY TWO HOURS ON THE DAY OF THE ACCIDENT, AND WAS RETURNING HOME WHEN HE REPORTED A LOSS OF ENGINE POWER. THE PILOT INFORMED THE TOWER CONTROLLER OF HIS POSITION AND STATED HIS INTENTIONS TO LAND ON A HIGHWAY. AS THE FLIGHT GOT CLOSE TO THE GROUND, THE PILOT SAID THAT HE WOULD ATTEMPT AN EMERGENCY LANDING IN A FIELD NEXT TO THE HIGHWAY. NO FURTHER RADIO COMMUNICATION WAS RECEIVED FROM N850JW. EXAMINATION OF THE AIRCRAFT FAILED TO DISCLOSE A MECHANICAL MALFUNCTION OR COMPONENT FAILURE. THE CARBURETOR HEAT LEVER WAS IN THE COLD POSITION WHEN EXAMINED AT THE ACCIDENT SITE. A REVIEW OF CURRENT WEATHER DATA REVEALED CONDITIONS FAVORABLE FOR THE FORMATION OF CARBURETOR ICE. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1993_ATL93LA137.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 ↗