LAX99LA172 · Beech A36
Beech A36 · Accident: on ground/water collision with object while taxiing
From Riverside Municipal Airport (RAL) to San Diego International Airport (SAN)
Event
- NTSB case
- LAX99LA172
- 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
- 0 · 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
- Visual Meteorological Cond
Beech A36
- Aircraft type
- Beechcraft 36
- 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
- N6034X
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Riverside Municipal Airport (RAL), Riverside, CATo San Diego International Airport (SAN)
- 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
- Taxi · from runway
- 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
- On ground/water collision with object
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Pilot in command › Visual lookout, not maintained
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot landed at dusk and made a 90-degree turn off the runway onto a taxiway. Thereafter, while proceeding at less than 5 miles per hour, he again turned right, entered an oval area short of the desired taxiway, and collided with a runway sign. The pilot indicated to responding officials that the collision occurred while he was looking at instruments.
Probable cause
The pilot's failure to maintain a visual lookout while taxiing resulting in the aircraft's colliding with a runway sign. Contributing factors were dusk light conditions, the sign, and the pilot's diverting his attention to aircraft instrumentation during taxi.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX99LA172
- Event ID
- 20001212X18803
- Case number
- LAX99LA172
- 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: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 1999-05-06.
- API snapshot SHA-256: 7ec1a0b9c9b68b81c156178111a39ae6647e8d66333ecbdeb1007032ab97157a; retrieved 2026-09-22T15:19:53.314Z.