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SF340 captain reports torque and temperature anomalies at FL180. Engine is shut down and an emergency is declared with center before the captain notices one of the ctot switches is in the center position; neither on nor off. After placing the switch in the off position the engine is restarted and the flight continues to destination.
| Attributes | |
| ACN | 846062 |
| Time | |
| Date | 200907 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | SF 340B |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 130 Flight Crew Total 4715 Flight Crew Type 1400 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
I was flying a 135 cargo flight in a saab 340 aircraft. While climbing through FL180; I noticed the right engine temperature climbing and the torque gauge fluctuating and auto-ignition also came on. The weather was good visibility and ceiling was unlimited. I alerted the copilot to get out the engine shutdown in flight checklist. As a precautionary measure; we declared an emergency with center and stated that we were having engine indication issues and it looked like we would be shutting down an engine. We turned around and headed back. After we completed the turn I noticed one of the autothrottle or ctot (constant torque on takeoff) switches was not completely in the off position; it was stuck in the middle of on and off. I moved the switch all the way off and decided to restart the engine. The engine started and operated normally so I called center and rescinded the emergency and asked for a vector to rejoin the airway and no further problems occurred during the flight.
Original NASA ASRS Text
Title: SF340 Captain reports torque and temperature anomalies at FL180. Engine is shut down and an emergency is declared with Center before the Captain notices one of the CTOT switches is in the center position; neither on nor off. After placing the switch in the off position the engine is restarted and the flight continues to destination.
Narrative: I was flying a 135 cargo flight in a SAAB 340 aircraft. While climbing through FL180; I noticed the right engine temperature climbing and the torque gauge fluctuating and auto-ignition also came on. The weather was good visibility and ceiling was unlimited. I alerted the copilot to get out the engine shutdown in flight checklist. As a precautionary measure; we declared an emergency with Center and stated that we were having engine indication issues and it looked like we would be shutting down an engine. We turned around and headed back. After we completed the turn I noticed one of the autothrottle or CTOT (constant torque on takeoff) switches was not completely in the off position; it was stuck in the middle of on and off. I moved the switch all the way off and decided to restart the engine. The engine started and operated normally so I called Center and rescinded the emergency and asked for a vector to rejoin the airway and no further problems occurred during the flight.
Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.