# Accident 20101221053669A: Cessna 340A, Madison, WI, December 21, 2010

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: December 21, 2010, 12:47 local time
- Place: Madison, WI
- Airport: Dane County Regional-Truax Field
- Damage: Substantial damage
- Phase of flight: Landing: Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 43.1397° N, 89.3375° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=43.1397&lon=-89.3375&mi=10
- Aircraft: N233DS, a cancelled registration (https://openairdocs.org/deregistered/N233DS-2013-08-07) (OpenAirDocs)
- Registry model: Cessna 340A (registry code 2076405, https://openairdocs.org/model/cessna-340a) (OpenAirDocs)
- Registry engine: Continental TSIO-520 series (registry code 17040, https://openairdocs.org/engine/continental-tsio-520-series) (OpenAirDocs)
- Reported make and model: CESSNA 340A
- Reported engine: CONT MOTOR TSIO-520 SER
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Airline transport
- Pilot flight hours: 11,421 total, 200 in this make and model, 2 in the last 90 days
- NTSB investigation: [NTSB CEN11CA128](https://openairdocs.org/ntsb/CEN11CA128) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20101221053669A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON DECEMBER 21, 2010 AT 12:45 CT ON APPROACH TO RUNWAY 18 MADISON WI THE PILOT OF CESSNA 340A, N233DS, EXPERIENCED WINDSHIELD ICING AND LOST VISUAL CONTACT WITH THE RUNWAY.  THE AIRCRAFT WENT OFF THE RUNWAY AND SUBSTAINED SUBSTANTIAL DAMAGE.  THE PILOT, SOLE OCCUPANT, WAS UNINJURED. THE FLIGHT WAS OPERATED UNDER 14 CFR PART 91.  THE FLIGHT ORIGINATED IN MADISON WI AT 12:34 WITH DESTNATION OF LONE ROCK, WI THE PILOT  MISSED 2 APPROACHES AT DESTINATION AND RETURNED TO MADISON WI. IFR CONDITIONS AT THE TIME OF ACCIDENT AND A FLIGHT PLAN WAS ON FILE.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN11CA128](https://openairdocs.org/ntsb/CEN11CA128), Dec 21, 2010: Cessna 340A (N233DS), Madison, WI, substantial damage. Probable cause: The pilot's failure to maintain adequate airspeed during the approach, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's failure to check the de-ice fluid level…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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