 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
CRJ200 captain experiences a jammed stabilizer during approach resulting in pitch and heading deviations. After QRH procedures are accomplished an uneventful landing ensues.
| Attributes | |
| ACN | 982252 |
| Time | |
| Date | 201111 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ATL.Tower |
| State Reference | GA |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Regional Jet 200 ER/LR (CRJ200) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
On approach into atlanta; we received stab trim and mach trim caution messages. Shortly after; we received an autopilot pitch caution message and the autopilot disconnected. We tried to re-engage the stab trim; mach trim and autopilot. They would not stay engaged. Additional back pressure was needed to maintain required pitch. Stabilizer trim caution procedure was performed in QRH and landing was uneventful. [We experienced an] unexpected controllability issue at a critical phase of flight at the world's busiest airport: resultant loss of autopilot during that time and ATC issuing several heading; airspeed and altitude changes as well as clearing us for the approach. Extra back pressure required for pitch coupled with loss of autopilot resulted in distractions and delayed responses to ATC requests. Running the QRH was a distraction as well. Need to be more responsive to the pitch required to fly the airplane without the trim. [We need] more flying without autopilot/flight director.
Original NASA ASRS Text
Title: CRJ200 Captain experiences a jammed stabilizer during approach resulting in pitch and heading deviations. After QRH procedures are accomplished an uneventful landing ensues.
Narrative: On approach into Atlanta; we received stab trim and Mach trim caution messages. Shortly after; we received an autopilot pitch caution message and the autopilot disconnected. We tried to re-engage the stab trim; Mach trim and autopilot. They would not stay engaged. Additional back pressure was needed to maintain required pitch. STAB TRIM caution procedure was performed in QRH and landing was uneventful. [We experienced an] unexpected controllability issue at a critical phase of flight at the world's busiest airport: resultant loss of autopilot during that time and ATC issuing several heading; airspeed and altitude changes as well as clearing us for the approach. Extra back pressure required for pitch coupled with loss of autopilot resulted in distractions and delayed responses to ATC requests. Running the QRH was a distraction as well. Need to be more responsive to the pitch required to fly the airplane without the trim. [We need] more flying without autopilot/flight director.
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.