|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Locale Reference||airport : zzz.airport|
|Altitude||msl single value : 13000|
|Controlling Facilities||artcc : zzz.artcc|
|Operator||common carrier : air carrier|
|Make Model Name||Regional Jet CL65|
Undifferentiated or Other Model
|Operating Under FAR Part||Part 121|
|Navigation In Use||other|
|Flight Phase||cruise : level|
|Affiliation||company : air carrier|
|Function||flight crew : first officer|
|Qualification||pilot : commercial|
|Experience||flight time last 90 days : 210|
flight time total : 1950
flight time type : 675
|Anomaly||aircraft equipment problem : critical|
|Independent Detector||aircraft equipment other aircraft equipment : eicas|
|Resolutory Action||flight crew : landed in emergency condition|
flight crew : declared emergency
At 13000 ft cruise flight captain and I encountered a stabilizer trim; mach trim; and autoplt pitch trim caution message in our EICAS screen. This lead to hand flying the airplane in a no trim situation. Because extra force was required to fly the airplane we declared an emergency; running the company flight manual instructions on each of the items; briefing our flight attendant and returning to the gate at ZZZ without further incident. Our other MEL's at the time were an ide #1; rtu #2 (communication); navigation light; and dome light. All are acceptable to fly with according to our MEL manual. Upon landing we changed aircraft and departed shortly after in a different aircraft. Later; I did inform my supervisors the items would need to be repaired and cleared before I would feel comfortable flying the aircraft again. It is my understanding that repairs were made that evening. I do not know what lead to this particular system failure but the collection of MEL's may have played a part. It is my belief that items should be cleared/repaired in a timely manner. In the future; if numerous MEL's are encountered on an aircraft at a single time; then I believe I should discuss the situation with my supervisor and if need be; decline the flight.
Original NASA ASRS Text
Title: A CL-600 FLIGHT CREW EXPERIENCED EICAS MESSAGES STAB TRIM; MACH TRIM; AND AUTOPILOT TRIM. THEY DECLARED AN EMERGENCY AND RETURNED TO THEIR DEPARTURE AIRPORT.
Narrative: AT 13000 FT CRUISE FLT CAPT AND I ENCOUNTERED A STABILIZER TRIM; MACH TRIM; AND AUTOPLT PITCH TRIM CAUTION MESSAGE IN OUR EICAS SCREEN. THIS LEAD TO HAND FLYING THE AIRPLANE IN A NO TRIM SITUATION. BECAUSE EXTRA FORCE WAS REQUIRED TO FLY THE AIRPLANE WE DECLARED AN EMER; RUNNING THE COMPANY FLT MANUAL INSTRUCTIONS ON EACH OF THE ITEMS; BRIEFING OUR FLT ATTENDANT AND RETURNING TO THE GATE AT ZZZ WITHOUT FURTHER INCIDENT. OUR OTHER MEL'S AT THE TIME WERE AN IDE #1; RTU #2 (COM); NAV LIGHT; AND DOME LIGHT. ALL ARE ACCEPTABLE TO FLY WITH ACCORDING TO OUR MEL MANUAL. UPON LNDG WE CHANGED ACFT AND DEPARTED SHORTLY AFTER IN A DIFFERENT ACFT. LATER; I DID INFORM MY SUPVRS THE ITEMS WOULD NEED TO BE REPAIRED AND CLRED BEFORE I WOULD FEEL COMFORTABLE FLYING THE ACFT AGAIN. IT IS MY UNDERSTANDING THAT REPAIRS WERE MADE THAT EVENING. I DO NOT KNOW WHAT LEAD TO THIS PARTICULAR SYSTEM FAILURE BUT THE COLLECTION OF MEL'S MAY HAVE PLAYED A PART. IT IS MY BELIEF THAT ITEMS SHOULD BE CLRED/REPAIRED IN A TIMELY MANNER. IN THE FUTURE; IF NUMEROUS MEL'S ARE ENCOUNTERED ON AN ACFT AT A SINGLE TIME; THEN I BELIEVE I SHOULD DISCUSS THE SITUATION WITH MY SUPVR AND IF NEED BE; DECLINE THE FLT.
Data retrieved from NASA's ASRS site as of May 2009 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.