# Accident 20041102028829A: Cessna 120, Willimantic, CT, November 2, 2004

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: November 2, 2004, 11:30 local time
- Place: Willimantic, CT
- Airport: Windham Airport
- Damage: Substantial damage
- Phase of flight: Ground Taxi, Other Airplane
- Operating rules: General operating rules (Part 91)
- Location: 41.7439° N, 72.1800° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=41.7439&lon=-72.1800&mi=10
- Aircraft: N1811N, a cancelled registration (https://openairdocs.org/deregistered/N1811N-2010-08-19) (OpenAirDocs)
- Registry model: Cessna 120 (registry code 2071402, https://openairdocs.org/model/cessna-120) (OpenAirDocs)
- Registry engine: Continental C85 series (registry code 17008, https://openairdocs.org/engine/continental-c85-series) (OpenAirDocs)
- Reported make and model: CESSNA 120
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 1,370 total, 78 in this make and model, 35 in the last 90 days
- NTSB investigation: [NTSB IAD05LA009](https://openairdocs.org/ntsb/IAD05LA009) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20041102028829A

## Narrative

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

(-23) MR. MOSIMANN WAS RECEIVING DUAL INSTRUCTION FOR THE PURPOSE OF ADDING AIRPLANE SINGLE ENGINE LAND TO AN ALREADY EXISTING COMMERCIAL PILOT CERTIFICATE. MR. VANVOORHIS WAS THE INSTRUCTOR AND PILOT IN COMMAND OF THE FLIGHT. MR. VANVOORHIS STATED THAT THE STUDENT WAS HAVING DIFFICULTIES WITH THE USE OF THE BRAKES AND HE DECIDED TO LET HIM PRACTICE BY TAXIING UP AND DOWN THE RUNWAY 27. MR. VANVOORHIS STATED THAT ON THE FIRST PRACTICE TAXI DOWN THE RUNWAY, MR. MOSIMANN APPLIED UNEVEN BRAKING AND THE AIRCRAFT VEERED SHARPLY TO THE RIGHT AND STARTED TO GROUND LOOP. THE AIRCRAFT WENT PART WAY AROUND, CAME UP ON ITS NOSE AND THEN OVER ON ITS BACK.

## 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 IAD05LA009](https://openairdocs.org/ntsb/IAD05LA009), Nov 2, 2004: Cessna 120 (N1811N), Willimantic, CT, substantial damage. Probable cause: the pilot's loss of directional control due to his uneven application of brakes. A factor in the accident was the tailwind.

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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