North American AT-6D accident near Hayward, California, September 2, 1991
On September 2, 1991 at about 9:28 pm local time, a North American AT-6D, registered N3660V, was substantially damaged in an accident near Hayward, California (Hayward airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
THE FAILURE OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRCRAFT WHILE CORRECTING AN UNWANTED DEVIATION.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 2, 1991 · about 9:28 pm local time
- Place
- Hayward, California · Hayward · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- North American AT-6D · all AT-6Ds on the register
- Registration
- N3660V · registry record · serial 42-44722
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT SAID THE WHEEL LANDING WAS SMOOTH. DURING THE ROLL OUT, THE RIGHT LANDING GEAR STRUT LOWERED, WHICH DROPPED THE RIGHT WING, AND THE AIRCRAFT BEGAN A TURN TO THE RIGHT. THE PILOT SAID HE APPLIED LEFT AILERON AND RUDDER, AND, POWER TO CORRECT THE TURN. THE LEFT WING THEN CONTACTED THE GROUND, THE AIRCRAFT GROUND LOOPED, AND THE LANDING GEAR COLLAPSED.
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: commercial pilot
- Ratings: multi-engine land; single-engine land; instrument: airplane
- Flight time: 1,620 hours in all; 32 in this make and model; 55 in the last 90 days; 17 in the last 30 days; 1,398 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: frt
The aircraft
- Last inspection: annual inspection, September 10, 1990; 26 hours since
- Maximum gross weight: 5,300 lb
- Seats: 2
- Landing gear: retractable
- Engine: P&W R-1340 (piston); 0 hours total
The flight
- Departed from: N35 Half Moon Bay CA at 9:00 pm
- Flight plan: none
- Runway 28, 5,024 ft by 150 ft
Weather at the time
- Light: daylight
- Wind: from 300° at 5 knots
- Visibility: 20 statute miles
- Sky: clear
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
- Altimeter: 29.00 inHg
- Observation at 9:28 pm from HWD, 1 miles away
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.