 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A crj-200 flight crew experienced stabilizer trim; mach trim; and a/P pitch trim caution messages. They ran the QRH procedure; declared an emergency and returned to land at their departure airport.
| Attributes | |
| ACN | 810746 |
| Time | |
| Date | 200811 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl bound lower : 1500 msl bound upper : 13000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 200 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 270 flight time total : 6200 flight time type : 3000 |
| ASRS Report | 810746 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : caution messages |
| Resolutory Action | flight crew : declared emergency flight crew : diverted to another airport flight crew : landed in emergency condition other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
During climb out from ZZZ; we got stabilizer trim caution and mach trim caution messages simultaneously. We re-engaged the stabilizer trim and mach trim; but they came back shortly after. We then turned on the autoplt. During leveloff; we got autoplt pitch trim caution message. We disengaged the autoplt then xferred controls the captain's side. We then ran the QRH procedures for all 3 caution messages; but the stabilizer trim would not stay engaged. At this point I was hand flying the aircraft in an out of trim condition at night over the ocean. We advised ATC of the situation; declared an emergency; and told them we need to return to ZZZ. On the way back to ZZZ; we completed all checklists and advised the flight attendant and passenger. The landing and taxi to the gate were uneventful except for having to hold a bit of extra back pressure on the yoke.
Original NASA ASRS Text
Title: A CRJ-200 FLIGHT CREW EXPERIENCED STAB TRIM; MACH TRIM; AND A/P PITCH TRIM CAUTION MESSAGES. THEY RAN THE QRH PROCEDURE; DECLARED AN EMERGENCY AND RETURNED TO LAND AT THEIR DEPARTURE AIRPORT.
Narrative: DURING CLBOUT FROM ZZZ; WE GOT STABILIZER TRIM CAUTION AND MACH TRIM CAUTION MESSAGES SIMULTANEOUSLY. WE RE-ENGAGED THE STABILIZER TRIM AND MACH TRIM; BUT THEY CAME BACK SHORTLY AFTER. WE THEN TURNED ON THE AUTOPLT. DURING LEVELOFF; WE GOT AUTOPLT PITCH TRIM CAUTION MESSAGE. WE DISENGAGED THE AUTOPLT THEN XFERRED CTLS THE CAPT'S SIDE. WE THEN RAN THE QRH PROCS FOR ALL 3 CAUTION MESSAGES; BUT THE STABILIZER TRIM WOULD NOT STAY ENGAGED. AT THIS POINT I WAS HAND FLYING THE ACFT IN AN OUT OF TRIM CONDITION AT NIGHT OVER THE OCEAN. WE ADVISED ATC OF THE SITUATION; DECLARED AN EMER; AND TOLD THEM WE NEED TO RETURN TO ZZZ. ON THE WAY BACK TO ZZZ; WE COMPLETED ALL CHKLISTS AND ADVISED THE FLT ATTENDANT AND PAX. THE LNDG AND TAXI TO THE GATE WERE UNEVENTFUL EXCEPT FOR HAVING TO HOLD A BIT OF EXTRA BACK PRESSURE ON THE YOKE.
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.