Cessna 150L accident near Hillsboro, Oregon, February 20, 1999
On February 20, 1999 at about 10:30 pm local time, a Cessna 150L, registered N16058, was substantially damaged in an accident near Hillsboro, Oregon (Twin Oaks Airpark airport). It was an instructional 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 pilot's failure to maintain directional control of the aircraft. A related factor was the crosswind condition.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- February 20, 1999 · about 10:30 pm local time
- Place
- Hillsboro, Oregon · Twin Oaks Airpark · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 150L · all 150Ls on the register
- Registration
- N16058 · registry record · serial 15073448
- Damage
- Substantial damage
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The student pilot stated that the aircraft landed a 'little hot' and bounced. The aircraft veered to the left (west) side of the runway and the pilot elected to initiate a go-around. Before the aircraft became airborne, it collided with a pile of excavated rock and dirt located on the west edge of the runway. The aircraft came to rest approximately 20 feet from the runway edge. The pilot reported that at the time of the accident the wind was from 090 degrees at three to five knots, gusting to ten knots. Hillsboro Airport, located eight miles north of Twin Oaks, was reporting the wind from 110 degrees at 14 knots at the time of the accident.
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: student
- Flight time: 30 hours in all; 5 in this make and model; 24 in the last 90 days; 12 in the last 30 days; 4 as pilot in command
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 7,474 hours
- Last inspection: annual inspection, January 22, 1999; 10 hours since
- Maximum gross weight: 1,600 lb
- Seats: 2
- Landing gear: fixed
- Engine: Continental O-200-A (piston); 0 hours total
The flight
- Departed from: MMV Mcminnville OR at 9:30 pm
- Flight plan: none
- Runway 20, 2,400 ft by 50 ft
Weather at the time
- Light: daylight
- Wind: from 110° at 14 knots
- Visibility: 10 statute miles
- Sky: scat at 7,000 ft
- Temperature: 52°F (11°C), dew point 34°F (1°C)
- Altimeter: 29.00 inHg
- Observation at 9:53 pm from HIO, 8 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.