LAX92FA388
1992-09-16 · HANA, Hawaii, United States · Fatal · 1 aircraft · Status: Completed
N350SM has since been reassigned. It is now registered to a different aircraft (BEECH B300, built 2009), which was not involved in this event.
Aircraft involved
Probable cause & findings
THE PILOT INADEQUATELY EVALUATING THE ENROUTE WEATHER CONDITIONS, AND THE PILOT MAKING THE INFLIGHT DECISION TO CONTINUE VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS. FACTORS IN THIS ACCIDENT WERE THE INABILITY OF THE PILOT TO SEE AND AVOID THE MOUNTAINOUS TERRAIN DUE TO THE THUNDERSTORMS AND OBSCURATION.
Factual narrative
THE INTENDED 45 MINUTE SIGHT SEEING HELICOPTER FLIGHT DEPARTED THE AIRPORT AT ABOUT 1032 HOURS. ADVERSE WEATHER CONDITIONS INCLUDING THUNDERSTORMS, RAIN SHOWERS, AND POOR VISIBILITY WERE REPORTED IN THE VICINITY OF THE ACCIDENT SITE THROUGHOUT THE MORNING. THE ACCIDENT AIRCRAFT PILOT HAD A RADIO CONVERSATION WITH ANOTHER SIGHT SEEING TOUR PILOT BETWEEN 1055 HOURS AND ABOUT 1100 HOURS. THIS PILOT CONTACTED THE ACCIDENT AIRCRAFT PILOT TO TRY TO DETERMINE WHICH ROUTE SHE SHOULD TAKE TO AVOID THE ADVERSE WEATHER. SHE REPORTED THE ACCIDENT PILOT'S LAST CONVERSATION WITH HER AS 'DON'T COME DOWN THIS WAY, THE WEATHER IS GETTING REAL BAD.' A WITNESS LOCATED ON THE GROUND IN THE VICINITY OF THE ACCIDENT REPORTED RAIN SHOWERS AND MOUNTAIN OBSCURATION AT ABOUT THE TIME OF THE ACCIDENT. HE FURTHER STATED THAT HE SAW A BLUE AND WHITE HELICOPTER FLYING IN AND OUT OF THE CLOUDS AND HE COULD NOT UNDERSTAND WHY A HELICOPTER WOULD BE FLYING SO CLOSE TO THE MOUNTAINS IN CONSIDERATION OF THE ADVERSE WEATHER. EXAMINATION OF THE WRECKAGE SHOWED THE HELICOPTER IMPACTED A 30 DEGREE SLOPE IN A LEVEL 15 DEGREE RIGHT BANK. WRECKAGE AND DEBRIS WERE SCATTERED OVER A DISTANCE OF ABOUT 175 FEET FROM THE INITIAL IMPACT LOCATION. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1992_LAX92FA388.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
Matched on aircraft type or causal vocabulary (thunderstorm). All research papers
- Embry-Riddle Scholarly Commons 2024 · Journal article (IJAAA) The Impact of Thunderstorms on Take-off Data in South Africa
Aviation and meteorology are entwined disciplines, as aviation occurs in the atmosphere. Prevailing weather conditions at take-off are of utmost importance to aviation.
- NASA NTRS 2019 · Technical Memorandum (TM) Thunderstorm hazards flight research: Storm hazards 1980 overview
A highly instrumented NASA F-106B aircraft, modified for the storm hazards mission and protected against direct lightning strikes, was used in conjunction with various ground based radar and lightning…
- NASA NTRS 2019 · Conference Proceedings Operational evaluation of thunderstorm penetration test flights during project Storm Hazards '80
The National Aeronautics and Space Administration is conducting a research project called Storm Hazards '80 in order to study the prediction, detectability and avoidance of the hazards of severe storm…
- NASA NTRS 2019 · Preprint (Draft being sent to journal) Nowcasting Thunderstorm Anvil Clouds Over KSC/CCAFS
Electrified thunderstorm anvil clouds extend the threat of natural and triggered lightning to space launch and landing operations far beyond the immediate vicinity of thunderstorm cells.
- NASA NTRS 2019 · Contractor Report (CR) An Examination of Aviation Accidents Associated with Turbulence, Wind Shear and Thunderstorm
The focal point of the study reported here was the definition and examination of turbulence, wind shear and thunderstorm in relation to aviation accidents.
- NASA NTRS 2019 · Reprint (Version printed in journal) Observations of severe turbulence near thunderstorm tops
Data derived from the flight tapes of two airliners that experienced severe turbulence near thunderstorm tops are used to produce quantitative descriptions of the turbulence and its environment.