LAX99LA086 · Cessna 150L
Cessna 150L and Coelho RV4 · Accident: collision between aircraft (not in flight) while taxiing
Narrative check · The NTSB narrative appears to contradict this record's departure or destination. Values are shown as recorded, not corrected; compare with the narrative.
Event
- NTSB case
- LAX99LA086
- 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
Aircraft 1 · Cessna 150L
- Aircraft type
- Cessna 150
- 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
- N6979G
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Madera Municipal Airport (MAE)To not recorded
- 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 · to 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
- Collision between aircraft (not in flight)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Aircraft 2 · Coelho RV4
- Aircraft type
- Coelho RV4
- 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
- N770RF
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Midland International Air and Space Port (MAF)To not recorded
- 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 · to 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
- Collision between aircraft (not in flight)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Minor
Cause areas
- Pilot in command › Visual lookout, inadequate
- Pilot of other aircraft › Visual lookout, inadequate
Approximate · Estimated position: the centre of Madera, CA, the place the record names. Not the accident site.
NTSB narrative
A Coelho RV4, N770RF, collided with a Cessna 150L, N6979G, while taxiing for takeoff. The Cessna 150L was stopped on the parallel taxiway waiting for departure behind two other airplanes. The Cessna's pilot reported that the run-up area was congested and she did not believe there was enough room to safely pull into the area. While waiting on the taxiway, the propeller of a RV4 struck the tail section of her aircraft. The pilot of N770RF (a conventional gear airplane) stated that he was performing 'S' turns on the parallel taxiway while taxiing out for departure and did not notice the Cessna stopped on the taxiway.
Probable cause
The pilot of the other airplane's failure to maintain an adequate visual lookout and to see the airplane stopped on the taxiway ahead.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX99LA086
- Event ID
- 20001204X00086
- Case number
- LAX99LA086
- 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 1999-01-30.
- API snapshot SHA-256: 20559a6e6ee0afa7e179b55166abbe7248673b05c2ba004952488632cd50fb3a; retrieved 2026-09-22T15:56:33.141Z.