LAX91FA190 · Mooney M20F
Mooney M20F · Accident: in flight encounter with weather en route
From Crater Lake-Klamath Regional Airport (LMT) to Modesto City Co-Harry Sham Field (MOD)
Event
- NTSB case
- LAX91FA190
- 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
- 4 · 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
- Instrument Meteorological Cond
Mooney M20F
- Aircraft type
- Mooney M20
- 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
- N9624M
- Operator
- James I./Michele G. Johnson
- Onboard fatalities
- Unknown
- Route
- From Crater Lake-Klamath Regional Airport (LMT), Klamath Falls, ORTo Modesto City Co-Harry Sham Field (MOD), Modesto, CA
- 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
- En route · cruise
- 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
- In flight encounter with weather
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Visual flight rules (VFR) flight into instrument meteorological conditions (IMC)
- 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
- Pilot in command › Directional control, not maintained
- Pilot in command › VFR flight into imc, inadvertent
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE PLT PLANNED A NONSTOP FLT FM WA TO CA, & HE RECD PREFLT WEATHER BRIEFINGS SHOWING GENERALLY VFR CONDITIONS. ENROUTE, THE PLT AMENDED HIS ROUTE & LANDED AT KLAMATH FALLS, OR. DURING ROLLOUT THE ACFT NEARLY VEERED OFF THE SIDE OF THE RWY. THE PLT TOLD ATC HE NEEDED A REST STOP & HE HAD HAD A FLAP PROBLEM. WITNESSES REPORTED THE PLT LOOKED "NERVOUS, UNDECIDED & BEWILDERED." THE PLT CONTINUED HIS S-BND CIRCLING ROUTE OF FLT WHICH PLACED TEH ACFT OVER THE WESTERN SLOPES OF THE SIERRA NEVADA MTNS AT ELE OVER 7000 FT MSL. 40 MI WEST LAY THE CENTRAL VALLEY OF CA, ELE 300 FT MSL. WHILE CRUISING AT 13,000 FT THE PLT REVERSED COURSE & DISAPPEARED FM RADAR. THE ACFT CRASHED INVERTED INTO 4900 FT MSL TERRAIN, ABT 1.5 FM ITS LAST RADAR POSITION. WITNESSES REPORTED IT WAS RAINING HEAVILY & LIGHTNING WAS VISIBLE. THE PLT HAD NOT LOGGED ANY INST FLT TIME IN 19 YRS. HIS TOTAL TIME WAS 88 HRS. HIS TOTAL PIC TIME IN THE ACFT (WHICH HE HAD PURCHASED 3 WKS BEFORE THE ACCIDENT) WAS 0.5 HRS.
Probable cause
THE PILOT'S INADVERTENT FLIGHT INTO IMC AND THEREAFTER HIS FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF HIS AIRPLANE. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT RELATED TO THE PILOT'S IMPROPER WEATHER EVALUATION WHICH RESULTED IN HIS DELAYED EMERGENCY PROCEDURE, DISORIENTATION AFTER ENTERING CLOUDS AND RAIN, AND TO HIS LACK OF RECENT FLYING EXPERIENCE AND EXPERIENCE IN THE MODEL OF AIRPLANE.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX91FA190
- Event ID
- 20001212X17017
- Case number
- LAX91FA190
- 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 local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 09c8fbb5b74719dd36f26f3f5115e4d8e3c09fb56be78382b7902b8588c98fe8; retrieved 2026-09-21T01:50:19.813Z.