# Incident 20120229005049I: Columbia Aircraft Mfg LC41-550FG, Chino, CA, February 29, 2012

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: February 29, 2012, 11:35 local time
- Place: Chino, CA
- Damage: No damage
- Phase of flight: Descent
- Operating rules: General operating rules (Part 91)
- Location: 33.9763° N, 117.6745° W: Placed by OpenAirDocs: center of Chino, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.9763&lon=-117.6745&mi=10
- Aircraft: N593AB (not matched to a registry record)
- Reported make and model: COLUMBIA AIRCRAFT MFG LC41-550FG
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot
- Pilot flight hours: 1,500 total, 25 in this make and model, 25 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20120229005049I

## Narrative

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

WHILE CONDUCTING AN ILS APPROACH DURING DESCENT THROUGH 3500 FEET THE FLIGHT CREW STARTED EXPERIENCING A RUNAWAY AUTOPILOT SITUATION.  ATTEMPTS TO DISCONNECT THE AUTOPILOT WERE UNSUCCESSFUL.  FLIGHT CREW FOUGHT TO CONTROL THE AIRCRAFT UNTILL APPROXIMATELY 500 FEET ALTITUDE WHEN THE AUTOPILOT DISCONNECTED AND THEY MADE AN UNEVENTFUL LANDING.  TEMPORARY LOSS OF RADIO COMMUNICATION WAS ALSO EXPERIENCED DURING THIS DESCENT.  ONCE ON THE GROUND AFTER RESETING ALL BREAKERS AND SWITCHES THE PROBLEMS COULD NOT BE DUPLICATED.

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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