LAX02LA078 · Robinette Ultra Pup
Robinette Ultra Pup · Accident: loss of engine power during initial climb
From Rio Vista Municipal Airport (O88) to an unrecorded destination
Event
- NTSB case
- LAX02LA078
- 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
- Unknown
- 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
Robinette Ultra Pup
- Aircraft type
- Robinette ULTRA PUP
- 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
- N2221X
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Rio Vista Municipal Airport (O88), Rio Vista, CATo 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
- Initial climb
- 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
- Loss of engine power
- 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
No findings designated as a cause are recorded in the NTSB data yet.
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The experimental, amateur-built airplane landed off-airport following a total loss of engine power on climbout. The pilot reported that during the initial climb after a slow-flight, low pass down the 4,200-foot-long runway and while about 200 feet above ground level, the engine lost all power although the propeller continued to windmill. After the accident, there was about 9 gallons of 100-octane aviation fuel aboard. Earlier the same day he had flown a prior flight leg on the same tank of fuel. The pilot suspected that carburetor icing was the cause of the engine loss of power. The airplane was equipped with a Mosler converted automotive engine, and was equipped with carburetor heat. The carburetor heat control was in the "on" position when engine power was lost. A generic carburetor icing probability chart used by the Safety Board showed the ambient temperature and dew point conditions to have been within the region marked "serious icing - cruise or climb power."
Probable cause
The loss of engine power for undetermined reasons.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX02LA078
- Event ID
- 20020212X00205
- Case number
- LAX02LA078
- 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: 2a97f3e50e7b73c8d34f0b1d4b74d60952b72d2eb294efa4fa01547d3a4c5bb9; retrieved 2026-09-22T11:08:42.050Z.