Stinson 108 accident near Mesa, Arizona, October 10, 1993
On October 10, 1993, a Stinson 108, registered NC409, was substantially damaged in an accident near Mesa, Arizona (Falcon Field). 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
a loose wheel half bolt, due to the inadequate maintenance inspection of the aircraft.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- October 10, 1993
- Place
- Mesa, Arizona · Falcon Field · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Stinson 108 · all 108s on the register
- Registration
- NC409 · no longer on the register · serial 108-157
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The pilot reported that just after touchdown the aircraft 'immediately darted to the left.' The pilot was unsuccessful in regaining directional control and the aircraft ground looped off the right side of the runway. As the aircraft entered the dirt area next to the runway pavement, the aircraft nosed over onto its back. An FAA airworthiness inspector examined the aircraft and reported that one of the three bolts which secures the left wheel halves together had backed out of its associated lock nut. The protruding bolt head contacted the brake caliper and subsequently locked the wheel. An examination of the maintenance records revealed that the wheel halves were last split about two years prior to the accident when a new tire was installed.
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
- Ratings: single-engine land
- Flight time: 384 hours in all; 217 in this make and model; 16 in the last 90 days; 4 in the last 30 days; 297 as pilot in command
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 1,407 hours
- Last inspection: annual inspection, May 23, 1993; 35 hours since
- Maximum gross weight: 2,230 lb
- Seats: 4
- Landing gear: fixed
- Engine: Franklin 6A4-150-B3 (piston); 0 hours total
The flight
- Departed from: P10 Chandler AZ
- Destination: FFZ
- Flight plan: none
- Runway 22L, 5,100 ft by 100 ft
- A second pilot was aboard
Weather at the time
- Light: daylight
- Visibility: 50 statute miles
- Sky: scat at 25,000 ft
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
- Altimeter: 29.00 inHg
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.