Amateur-built HAWK accident near Montaque, California, September 9, 1989
On September 9, 1989 at about 4:30 pm local time, a amateur-built HAWK, registered N5671, was substantially damaged in an accident near Montaque, California (Siskiyou County airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were 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 AFTER LANDING.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 9, 1989 · about 4:30 pm local time
- Place
- Montaque, California · Siskiyou County · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built HAWK
- Registration
- N5671 · no longer on the register · serial NONE
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE HOMEBUILT AIRCRAFT DEPARTED THE RUNWAY AND WENT OVER ON ITS BACK AFTER LANDING. AFTER THE ACCIDENT THE PILOT REPORTEDLY STATED HE HAD LOST CONTROL OF THE AIRCRAFT AND THAT THERE WERE NO MECHANICAL PROBLEMS WITH THE AIRCRAFT OR ITS FLIGHT CONTROLS PRIOR TO THE ACCIDENT. THE WINDS WERE LIGHT AND VARIABLE WITH NO GUSTS.
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
- Flight time: 261 hours in all; 10 in this make and model; 58 in the last 90 days; 14 in the last 30 days; 220 as pilot in command
- Medical certificate: Class 3 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 1,239 hours
- Last inspection: annual inspection, July 4, 1989; 15 hours since
- Maximum gross weight: 900 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-235 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 35, 7,400 ft by 150 ft
Weather at the time
- Light: daylight
- Visibility: 50 statute miles
- Sky: clear
- Temperature: 45°F (7°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 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.