# Accident 20041225034409A: Beech S35, Sheboygan Falls, WI, December 25, 2004

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: December 25, 2004, 16:25 local time
- Place: Sheboygan Falls, WI
- Damage: Substantial damage
- Phase of flight: Forced Landing
- Operating rules: General operating rules (Part 91)
- Location: 44.2680° N, 89.6170° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=44.2680&lon=-89.6170&mi=10
- Aircraft: N5631K, a cancelled registration (https://openairdocs.org/deregistered/N5631K-2014-12-02) (OpenAirDocs)
- Registry model: Beech S35 (registry code 1151532, https://openairdocs.org/model/beech-s35) (OpenAirDocs)
- Registry engine: Continental IO-520 series (registry code 17032, https://openairdocs.org/engine/continental-io-520-series) (OpenAirDocs)
- Reported make and model: BEECH S35
- Reported engine: CONT IO520*
- People aboard: 2
- Fatal injuries: 2
- Pilot flight hours: 4,500 total, 643 in this make and model, 65 in the last 90 days
- NTSB investigation: [NTSB CHI05FA048](https://openairdocs.org/ntsb/CHI05FA048) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20041225034409A

## Narrative

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

(-23) AIRCRAFT ASKED TO BE CLEARED FOR AN APPROACH INTO SHEBOYGAN AIRPORT, SBM. A SHORT TIME LATER, THE PILOT REPORTED SMOKE IN THE COCKPIT AND DECLARED AN EMERGENCY. AIRCRAFT CRASHED IN A FARM FIELD APPROXIMATELY 3 MILES NORTH OF SHEBOYGAN AIRPORT. AIRCRAFT STRUCK GROUND INVERTED. A POST CRASH FIRE OCCURRED. AIRCRAFT SUSTAINED SUBSTANTIAL DAMAGE. PILOT AND PASSENGER WERE KILLED.

## 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 CHI05FA048](https://openairdocs.org/ntsb/CHI05FA048), Dec 25, 2004: Beech S35 (N5631K), Herman, WI, substantial damage, 2 fatal. Probable cause: The installation of the improper cylinder base packing seals by maintenance personnel resulting in the loss of lubriation and subsequent failure of the number four connecting rod/bearing. A factor…

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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