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Accidents · NTSB CHI05CA262 · Final report

Cessna 310Q accident near Boscobel, Wisconsin, September 9, 2005

On September 9, 2005 at about 10:30 pm local time, a Cessna 310Q, registered N75SM, was substantially damaged in an accident near Boscobel, Wisconsin. It was a personal 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 misjudged distance/altitude which resulted in an undershoot. A related factor was the pilot's diverted attention due to the open cabin door.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
September 9, 2005 · about 10:30 pm local time
Place
Boscobel, Wisconsin · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 310Q · all 310Qs on the register
Registration
N75SM · registry record · serial 0448
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

The airplane experienced a main gear collapse following an undershoot landing. The pilot was returning to land after the aircraft's entry door opened on takeoff. The inspector stated the airplane touched down on sandy soil approximately 30 feet prior to the approach end of runway 25. He stated the right main gear cocked sideways when the airplane contacted the runway which was approximately 3 inches higher then the terrain. The airplane continued onto the runway and the right main gear collapsed approximately 400 feet past the approach end of the runway. The airplane then traveled off the right side of the runway where it came to rest.

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: multi-engine land; single-engine land
  • Flight time: 1,788 hours in all; 386 in this make and model; 8 in the last 90 days; 3 in the last 30 days
  • Medical certificate: Class 3 (with waivers/limitations)

The aircraft

  • Landing gear: retractable
  • Engine: Continental IO-520-E (piston); 0 hours total

The flight

  • Departed from: Boscobel WI at 10:25 pm
  • Destination: Boscobel WI
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew1

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.