Boeing A75N1 accident near San Antonio, Texas, July 2, 1990
On July 2, 1990 at about 11:45 pm local time, a Boeing A75N1, registered N66302, was substantially damaged in an accident near San Antonio, Texas (Twin Oaks 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
PILOT'S FAILURE TO MAINTAIN ADEQUATE SPEED. CONTRIBUTING TO THE ACCIDENT WAS THE MOMENTARY POWER LOSS.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 2, 1990 · about 11:45 pm local time
- Place
- San Antonio, Texas · Twin Oaks · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Boeing A75N1 · all A75N1s on the register
- Registration
- N66302 · registry record · serial 78-8185
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT MADE A PASS OVER THE RUNWAY, THEN MADE A RIGHT PULL-UP AND REVERSED DIRECTION TO LAND BACK ON THE RUNWAY. HE SAID THE ENGINE LOST POWER MOMENTARILY IN A CLIMBING TURN AND THE AIRPLANE STALLED. THE AIRPLANE IMPACTED A TREE AND THEN THE GROUND. A PARTIAL ENGINE TEARDOWN DID NOT REVEAL ANY MECHANICAL PROBLEMS AND THE PILOT LATER ACKNOWLEDGED THAT THE MOMENTARY POWER LOSS COULD HAVE BEEN PILOT INDUCED.
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: private
- Ratings: single-engine land
- Flight time: 593 hours in all; 280 in this make and model; 70 in the last 90 days; 522 as pilot in command
- Medical certificate: Class 3 (valid medical--no waivers/lim.)
- Seat: rear
The aircraft
- Last inspection: annual inspection, September 1, 1989; 57 hours since
- Maximum gross weight: 2,950 lb
- Seats: 2
- Landing gear: fixed
- Engine: Continental W670-6N (piston); 0 hours total
The flight
- Departed from: T94 at 11:30 pm
- Flight plan: none
- Runway 30, 1,800 ft by 30 ft
Weather at the time
- Light: daylight
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 99°F (37°C), dew point 0°F (-18°C)
- Altimeter: 30.00 inHg
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.