NTSB CAROL · Event
Event LAX93LA244
Registry · N672T
FAA Aircraft Registry record.
Make / Model
HELIE CLAUDE MUSTANG II RG
Year of manufacture
1988 · 5 years old at event
Engine
LYCOMING 0-320 SERIES (180 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
20020508
ADS-B equipped
Yes — Mode-S A8E4CF
Registrant of record
JENSEN JARED J
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
THE PILOT DISREGARDING THE ADVICE THAT VISUAL FLIGHT RULES WERE NOT RECOMMENDED; THE PILOT'S INADEQUATE WEATHER EVALUATION ALONG HIS ROUTE OF FLIGHT; THE PILOT ATTEMPTING FLIGHT INTO KNOWN ADVERSE WEATHER CONDITIONS; THE PILOT'S LOSS OF AIRCRAFT CONTROL DUE TO ICE ACCUMULATION; AND THE PILOT'S LIMITED ACTUAL OR SIMULATED INSTRUMENT FLIGHT EXPERIENCE.
Factual narrative
On June 6, 1993 about 1637 hours Pacific daylight time, a Beech K 35, N672T, collided with the terrain following an in flight loss of control, while in cruise flight , about 20 miles north of Eureka, Nevada. The airplane was destroyed and the certificated private pilot, the sole occupant, received fatal injuries. The personal flight was being operated by the pilot. The flight originated in Grangeville, Idaho, at an undetermined time and was destined for Burbank, California. Instrument meteorological conditions prevailed and a flight plan was not filed. According to recorded transcripts provided by the Boise, Idaho, FAA Flight Service Station (FSS), the pilot of N672T telephoned that FSS 1313 hours, and requested a briefing. He told the FSS position specialist that he was flying from Caldwell Airport (Grangeville), to Burbank. The transcripts show the position specialist telling the pilot "OK VFR flight is not recommended." He told the pilot there were flight precautions for moderate to isolated severe icing between 8,000 and 20,000 feet above mean sea level along the route of flight. He further stated, "...moderate to isolated severe turbulence below twenty thousand, mountain obscuration, and IFR conditions in clouds, precipitation and fog." He continued "Right now enroute ceilings are varying from a thousand feet to ten thousand feet broken to overcast, visibilities from three to seven miles in rain or snow showers and fog all up along that route." At 1314 hours, the pilot asked "Ah, could you tell me ah if I could take a route ah to Oregon to the west from here (?)" The FSS position specialist told the pilot "same conditions." The pilot acknowledged and the telephonic conversation ended at 1314:54 hours. The pilot departed Grangeville at an undetermined time. No witnesses were located that could provide any information pertaining to the pilot's actual departure. According to FAA provided voice communications transcripts, the pilot contacted Boise air traffic control tower at 1423 hours. This was the first located evidence of communications between air traffic controllers and the pilot after he became airborne. Between 1423 hours and 1447 hours, the pilot communicated with Boise and Mountain Home (U. S. Air Force), Idaho, approach control. At 2147 hours, the pilot requested an altitude change and a destination change to Elko, Nevada, from Mountain Home approach control. At 1458 hours, the pilot contacted FAA Salt Lake Center. When the airplane was handed off to Salt Lake Center, it was at an altitude of 11,800 feet and enroute to Elko. At 1520 hours, the pilot reported an altitude of 13,500 feet. At 1545 hours the Salt Lake Center air traffic controller told the pilot that previous aircraft going into Elko had to execute an instrument flight rules approach to land at that location. The pilot acknowledged and at 1545 hours, the pilot changed his destination to Burbank. At 1626 hours the pilot called Salt Lake Center and said "emergency." The controller acknowledged and asked the nature of the emergency and the pilot's intentions. The pilot responded "it's an emergency (unintelligible) severe icing cannot maintain (unintelligible)." The controller asked the pilot to repeat his last transmission. The pilot again said he had severe icing. The controller said "november six seven two tango you're experiencing severe icing." At 1627 hours, the pilot said "sever icing I have an emergency sir (unintelligible) altitude." At 1628 hours, the pilot asked for directions "so I can get out of these ah clouds ah." The controller gave the pilot a new heading. At 2329 hours the pilot reported that he was gaining altitude and climbing. The controller then asked the pilot if he was still in the clouds. The pilot said "yes but its getting a little clear clearer." The radio transmissions continued between the pilot and the FAA controller. At 1633 hours, the controller asked the pilot "...how is your icing now?" The pilot said "...I am almost (unintelligible) the clouds but there is still ah some icing." The 2335, the controller asked the pilot if he was on top of the clouds. The pilot told the controller "I am right now breaking out." The controller tried to contact the pilot seven more times and further enlisted the aid of an American Airlines crew to try to make radio contact with the pilot. No further recorded radio contact was made with the pilot. Salt Lake Center personnel made notifications that an airplane had disappeared from their radar. The Civil Air Patrol searched for the airplane and located the airplane on June 7, 1993. Local law enforcement personnel from White Pine County (Nevada) located the accident site on June 7, 1993. MEDICAL AND PATHOLOGICAL INFORMATION: An autopsy was not performed on the pilot. The pilot was declared dead at the scene of the Accident by the White Pine County Deputy Coroner on June 7, 1993. A toxicological examination was not performed. DURING THE WEATHER BRIEFING FOR A CROSS-COUNTRY FLIGHT, THE FSS SPECIALIST TOLD THE PILOT THAT VFR WAS NOT RECOMMENDED. THE BRIEFING INCLUDED PRECAUTIONS FOR MODERATE TO SEVERE ICING; LOW CEILINGS; MOUNTAIN OBSURCATIONS; RAIN/SNOW; FOG; AND MODERATE TO SEVERE TURBULENCE. THE PILOT ASKED ABOUT AN ALTERNATE ROUTE AND WAS TOLD THE SAME CONDITIONS EXISTED ON THAT ROUTE. ABOUT AN HOUR AFTER HIS FSS BRIEFING, THE PILOT CONTACTED FAA AIR TRAFFIC CONTROLLERS FOR ADVISORIES. ABOUT TWO HOURS AFTER HIS INITIAL CONTACT WITH ATC, THE PILOT REPORTED HE WAS IN CLOUDS AND WAS EXPERIENCING ICING. THE CONTROLLERS GAVE THE PILOT A NEW HEADING TO HELP HIM GET OUT OF THE CLOUDS. SEVERAL TIMES THE PILOT TOLD CONTROLLERS HE WAS IN ICING CONDITIONS. ABOUT TEN MINUTES AFTER FIRST REPORTING ICING AND BEING IN THE CLOUDS, THE PILOT SAID 'I AM BREAKING OUT.' NO FURTHER RADIO CONTACT WAS MADE WITH THE PILOT AND THE AIRPLANE DISAPPEARED FROM RADAR. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1993_LAX93LA244.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, loss of control, 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.
- NTSB Aircraft Accident Reports 2022 · Accident report
Loss of Control on Takeoff in Icing Conditions — Citation 560XL
Cessna Citation 560XL fatal takeoff icing accident, March 2018. Investigation of a Citation 560XL loss-of-control takeoff accident in icing conditions.
- Embry-Riddle Scholarly Commons 2023 · Faculty research project
Understanding the Coupled Interactions Between Hair-Like Micromechanoreceptors and Wall Turbulence
This research focuses on understanding the interactions between turbulent flows and long (high aspect ratio), flexible hair-like microstructures or micropillars inspired by those encountered in nature…
- NASA NTRS 2019 · Technical Memorandum (TM)
Aviation Trends Related to Atmospheric Environment Safety Technologies Project Technical Challenges
Current and future aviation safety trends related to the National Aeronautics and Space Administration's Atmospheric Environment Safety Technologies Project's three technical challenges (engine icing …
- Embry-Riddle Scholarly Commons 2012 · Journal article (JAAER)
Analysis of General Aviation Instructional Loss of Control Accidents
Although student pilots spend many hours practicing maneuvers to improve airmanship and prevent accidents, almost one half of all general aviation aircraft accidents occur during flight training.
- 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.
- 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…
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