# Accident 20040117001649A: Cessna 170B, Santa Rosa, CA, January 17, 2004

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 17, 2004
- Place: Santa Rosa, CA
- Airport: Sonoma County
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 38.5007° N, 122.7609° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=38.5007&lon=-122.7609&mi=10
- Aircraft: N2502C, a cancelled registration (https://openairdocs.org/deregistered/N2502C-2013-08-06) (OpenAirDocs)
- Registry model: Cessna 170B (registry code 2072306, https://openairdocs.org/model/cessna-170b) (OpenAirDocs)
- Registry engine: Continental C145 series (registry code 17012, https://openairdocs.org/engine/continental-c145-series) (OpenAirDocs)
- Reported make and model: CESSNA 170B
- Reported engine: CONT C1452
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 171 total, 97 in this make and model, 24 in the last 90 days
- NTSB investigation: [NTSB LAX04LA100](https://openairdocs.org/ntsb/LAX04LA100) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20040117001649A

## Narrative

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

(-23) AFTER DEPARTURE FROM THE SANTA ROSA AIRPORT AIRCRAFT LEVELED OFF, PILOT FELT A SLIGHT ROUGH ENGINE THEN A BANG. ENGINE FROZE STOPPING THE PROPELLER, PILOT DEAD STICKED THE AIRCRAFT INTO A MUDDY, WET, SOFT FIELD CAUSING DAMAGE TO THE FUSELAGE AND WINGS. THIS DAMAGE WAS CAUSED BY THE LANDING GEAR SINKING IN THE MUD. WINGS AND TAIL SECTION WAS REMOVED FROM THE AIRCRAFT TO TRANSPORT BACK TO SANTA ROSA AIRPORT. CYLINDER #2 CRACKED AND BROKE JUST BELOW THE SKIRT CAUSING THE ENGINE TO FREEZE. THIS CYLINDER WAS REPLACED IN 1986 WITH A USED CHROME CYLINDER. ENGINE WAS OVERHAULED ON 05/20/1991, AND NUMBER 2 CYLINDER WAS REMOVED AND RE-SEALED ON 04/22/2003.

## 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 LAX04LA100](https://openairdocs.org/ntsb/LAX04LA100), Jan 17, 2004: Cessna 170B (N2502C), Santa Rosa, CA, substantial damage. Probable cause: the failure of the number 2 cylinder barrel due to fatigue. The lack of suitable landing terrain was a factor in the accident.

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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