Amateur-built 1 accident near Chino, California, August 31, 1990
On August 31, 1990 at about 8:21 am local time, a amateur-built 1, registered N225YY, was substantially damaged in an accident near Chino, California (Chino airport). It was a personal flight under general aviation rules (Part 91). 1 person had minor injuries. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
LOSS OF ENGINE POWER DUE TO A FUEL LINE SEPARATION.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 31, 1990 · about 8:21 am local time
- Place
- Chino, California · Chino · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built 1
- Registration
- N225YY · registry record · serial T-6
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT OF AN EXPERIMENTAL AIRCRAFT LOST ENGINE POWER SHORTLY AFTER TAKEOFF AND CRASHED INTO A FIELD. EXAMINATION OF THE ENGINE REVEALED THAT THE FUEL OUTLET LINE FROM THE ENGINE DRIVEN FUEL PUMP WAS BROKEN. THE FUEL PUMP WAS EXAMINED AND THERE WAS NO APPARENT DAMAGE TO THE GEARS OR RELIEF VALVE AND THERE WAS NO DEBRIS IN THE PUMP.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: airline transport pilot
- Ratings: multi-engine land; single-engine land; instrument: airplane
- Flight time: 5,650 hours in all; 120 in the last 90 days; 35 in the last 30 days; 5,400 as pilot in command
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: frt
The aircraft
- Airframe total time: 42 hours
- Last inspection: annual inspection, August 30, 1990
- Maximum gross weight: 988 lb
- Seats: 1
- Landing gear: fixed
- Engine: Menasco D-4-87 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 15 statute miles
- Sky: clear
- Temperature: 75°F (24°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.