# Incident 20101120052219I: Cessna 208B, November 20, 2010

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: November 20, 2010, 19:53 local time
- Damage: No damage
- Phase of flight: Cruise/Level Flight
- Operating rules: Air taxi and commuter (Part 135)
- Aircraft: N877FE (not matched to a registry record)
- Reported make and model: CESSNA 208B
- Reported engine: P&W PT6A SERIES
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Airline transport
- Pilot flight hours: 6,100 total, 900 in this make and model, 150 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20101120052219I

## Narrative

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

ON 20 NOVEMBER, 2010 AT 1953Z, ^PRIVACY DATA OMITTED^ PILOTING A C-208 FROM CPR TO RKS AT 12,000 FEET, EXPERIENCED MOUNTAIN WAVE CAUSING HIS AIRCRAFT TO BEGIN A DESCENT.  THE AUTOPILOT COULD NOT MAINTAIN ALTITUDE.  ^PRIVACY DATA OMITTED^ SWITCHED OFF THE AUTOPILOT AND PLACED THE AIRCRAFT IN A MAX POWER CLIMB, YIELDING A 500 FPM RATE OF DECENT.  AT APPROXIMATELY 200 FEET BELOW HIS ASSIGNED ALTITUDE, HE CONTACTED SALT LAKE CENTER TO ADVISE THEM OF HIS PROBLEM.  THE AIRCRAFT DECENDED TO APPROXIMATELY 11,000 FEET BEFORE BEGINNING A CLIMB BACK TO 12,000 FEET.  THE FLIGHT CONTINUED TO ITS DESTINATION WITHOUT FURTHER INCIDENT.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.