Boeing A75N1 accident near Deer Valley, Arizona, November 21, 2009
On November 21, 2009 at about 7:30 pm local time, a Boeing A75N1, registered N56099, was substantially damaged in an accident during landing (landing roll) near Deer Valley, Arizona (Deer Valley 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
The pilot's failure to maintain directional control.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- November 21, 2009 · about 7:30 pm local time
- Place
- Deer Valley, Arizona · Deer Valley · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Boeing A75N1 · all A75N1s on the register
- Registration
- N56099 · no longer on the register · serial 75-873
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The pilot stated that the airplane touched down on the runway smoothly. As the pilot was slowing the airplane the left wing remained high, and the airplane was veering right. He applied left aileron and a burst of power, but the airplane continued to veer right. The airplane went off the right side of the runway and nosed over. The pilot stated that he believes the left landing gear oleo did not compress during the landing touchdown.
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
What happened, in order
- Loss of control on ground during landing (landing roll) defining event
- Runway excursion during landing (landing roll)
The NTSB's findings
- cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Directional control › Not attained/maintained
- Aircraft › Aircraft systems › Landing gear system › Main gear strut/axle/truck › Inoperative
- cause Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
Pilot
- Certificate: commercial pilot, private
- Ratings: single-engine land; instrument: airplane
- Flight time: 2,400 hours in all; 450 in this make and model
- Last flight review: December 31, 2008
- Medical certificate: Class 2 (without waivers/limitations)
- Seat: rear
- Injury: minor injuries
The aircraft
- Airframe total time: 7,257 hours
- Last inspection: annual inspection, January 28, 2008
- Maximum gross weight: 3,000 lb
- Seats: 2
- Landing gear: fixed
- Engine: Cont Motor W670-6N (piston); 0 hours total
The flight
- Departed from: KDVT Deer Valley AZ at 7:00 pm
- Destination: KDVT Deer Valley AZ
- Flight plan: none
- Runway 07L, 8,200 ft by 100 ft
Weather at the time
- Light: daylight
- Visibility: 41 statute miles
- Sky: clear
- Temperature: 72°F (22°C), dew point 19°F (-7°C)
- Altimeter: 29.87 inHg
- Observation at 7:53 pm from KDVT
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight 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.