Diamond DA 40 accident near Marana, Arizona, October 27, 2018
On October 27, 2018 at about 9:40 pm local time, a 2005 Diamond DA 40, registered N537MA, was substantially damaged in an accident during landing (landing roll) near Marana, Arizona (Marana Rgnl 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 student pilot's excessive taxi speed during a turn from the runway to a taxiway, which resulted in a runway excursion and collision with a taxiway sign.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- October 27, 2018 · about 9:40 pm local time
- Place
- Marana, Arizona · Marana Rgnl · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Diamond DA 40 Undesignat, built 2005
- Registration
- N537MA · registry record · serial 40.463
- Damage
- Substantial damage
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The solo student pilot reported that, while en route to the nontowered airport, she obtained local weather and reported on the common traffic advisory frequency that she would be entering the downwind for runway 30. Another pilot in the traffic pattern reported that they were using runway 12, so the student turned the airplane 180° to enter the downwind for runway 12. She added that, during the landing roll, she applied brakes and attempted to turn right off the runway, but the "speed was still high." She realized that she would not be able to make the turn, so she attempted to turn left back onto the runway. Subsequently, the airplane skidded off the runway to the right and impacted a taxiway sign. The airplane sustained substantial damage to the right wing. The deputy safety officer of the flight school reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The airport’s automated weather observation station reported that, about 5 minutes before the accident, the wind was from 350° at 4 knots. The student landed the airplane on runway 12.
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
- Miscellaneous/other during landing (landing roll)
- 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 › Surface speed/braking › Not attained/maintained
- cause Personnel issues › Task performance › Use of equip/info › Aircraft control › Student/instructed pilot
- Environmental issues › Physical environment › Object/animal/substance › Sign/marker › Contributed to outcome
- Environmental issues › Conditions/weather/phenomena › Wind › Tailwind › Effect on operation
- Environmental issues › Physical environment › Object/animal/substance › Sign/marker › Contributed to outcome
Dual student
- Certificate: student
- Flight time: 87 hours in all; 87 in this make and model; 47 in the last 90 days; 17 in the last 30 days; 8 as pilot in command
- Medical certificate: Class 2 (without waivers/limitations)
- Seat: left
- Injury: no injuries
The aircraft
- Airframe total time: 5,905.9 hours
- Last inspection: approved inspection programme, October 9, 2018
- Maximum gross weight: 2,535 lb
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming IO-360-M1A (piston); 3,434 hours total
- Operator: Cae Oxford Aviation Academy
The flight
- Departed from: FFZ Mesa AZ at 8:36 pm
- Destination: AVQ Marana AZ
- Flight plan: VFR
- Runway 12, 6,901 ft by 100 ft
Weather at the time
- Light: daylight
- Wind: from 350° at 4 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 88°F (31°C), dew point 39°F (4°C)
- Altimeter: 30.00 inHg
- Observation at 9:35 pm from KMZJ, 8 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
3 documents, released by the NTSB on February 28, 2019. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.
| # | Document | What it is | |
|---|---|---|---|
| 1 | Pilot/operator Aircraft Accident Report, NTSB Form 6120.1 | PDF, 9 pages | View Download |
| 2 | Record of Conversation - Student Pilot | PDF, 2 pages | View Download |
| 3 | Accident Photo | PDF, 1 page | View Download |
The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.
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.