LAX90LAMS1 · Cessna U206E
Overseas Transport Cessna U206E · Accident: missing aircraft
From Santa Barbara Municipal Airport (SBA) to HKO · KEAHOLE, HI
Event
- NTSB case
- LAX90LAMS1
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 1 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Unknown
Cessna U206E
- Aircraft type
- Cessna 206
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N9423G
- Operator
- Overseas Transport
- Onboard fatalities
- Unknown
- Route
- From Santa Barbara Municipal Airport (SBA), Santa Barbara, CATo HKO · KEAHOLE, HI
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Unknown
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Missing aircraft
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Reason for occurrence undetermined
Not plotted · Location withheld: coordinates are missing, conflicting, invalid, or have no accepted acquisition method. No substitute location has been invented.
NTSB narrative
THE AIRCRAFT WAS ON A FERRY FLIGHT ACROSS THE PACIFIC OCEAN FROM SANTA BARBARA TO THE HAWAIIAN ISLANDS. A ROUTINE POSITION REPORT WAS MADE AT 0846 HRS ON 11/16/89, WHEN THE AIRCRAFT WAS OVER DINTY INTERSECTION AT 8000 FT MSL. NO FURTHER COMMUNICATIONS WERE RECORDED BETWEEN THE AIRCRAFT AND ANY KNOWN GROUND FACILITY. AN ALNOT WAS ISSUED AND SEARCH/RESCUE EFFORTS WERE INITIATED AT THE FLIGHT'S FUEL EXHAUSTION TIME OF 0216 HOURS ON 11/17/89. NO TRACE OF THE AIRCRAFT OR THE PILOT WAS FOUND DURING THE SEARCH.
Probable cause
UNDETERMINED.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX90LAMS1
- Event ID
- 20001213X29832
- Case number
- LAX90LAMS1
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the UTC date the NTSB stores; the local time zone is not recorded, so the local date may differ by a day.
- API snapshot SHA-256: f56ca39e62dd969e0a666bc763268dcbe8578527edfed211639dabf93ec35e35; retrieved 2026-09-21T03:04:52.666Z.