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Crj flight crew experience autoplt disconnect when the stabilizer trim runs away aircraft nose down. Perform appropriate checklists; declare emergency and land at nearest suitable airport.
| Attributes | |
| ACN | 658562 |
| Time | |
| Date | 200505 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 34000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| 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 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 260 flight time total : 5000 flight time type : 3261 |
| ASRS Report | 658562 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : excursion from assigned altitude other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : declared emergency flight crew : landed in emergency condition flight crew : diverted to another airport |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
En route at FL340; the autoplt kicked off. The captain took control of the aircraft after a loss of 500 ft and leveled off; realizing we had a stabilizer trim runaway. We notified ATC of the altitude loss and requested a lower altitude. Seatbelt sign was turned on and the QRH for stabilizer trim runaway was completed; requiring a landing at the nearest suitable airport. We declared an emergency and began being vectored to the final approach. We contacted maintenance; dispatch; the flight attendant and made an announcement to the passenger. We landed uneventfully in ZZZ.
Original NASA ASRS Text
Title: CRJ FLT CREW EXPERIENCE AUTOPLT DISCONNECT WHEN THE STABILIZER TRIM RUNS AWAY ACFT NOSE DOWN. PERFORM APPROPRIATE CHKLISTS; DECLARE EMER AND LAND AT NEAREST SUITABLE ARPT.
Narrative: ENRTE AT FL340; THE AUTOPLT KICKED OFF. THE CAPT TOOK CTL OF THE ACFT AFTER A LOSS OF 500 FT AND LEVELED OFF; REALIZING WE HAD A STABILIZER TRIM RUNAWAY. WE NOTIFIED ATC OF THE ALT LOSS AND REQUESTED A LOWER ALT. SEATBELT SIGN WAS TURNED ON AND THE QRH FOR STABILIZER TRIM RUNAWAY WAS COMPLETED; REQUIRING A LNDG AT THE NEAREST SUITABLE ARPT. WE DECLARED AN EMER AND BEGAN BEING VECTORED TO THE FINAL APCH. WE CONTACTED MAINT; DISPATCH; THE FLT ATTENDANT AND MADE AN ANNOUNCEMENT TO THE PAX. WE LANDED UNEVENTFULLY IN ZZZ.
Data retrieved from NASA's ASRS site as of January 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.