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Rudder travel very restr on landing. Use of nosewheel steering resulted in jerky motion. Possible connection between nosewheel steering sensor, rudder pedal steering and flight rudder capability.
| Attributes | |
| ACN | 340878 |
| Time | |
| Date | 199607 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : msp |
| State Reference | MN |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | ground other : taxi landing other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 13000 flight time type : 2500 |
| ASRS Report | 340878 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Rudder travel very restr on landing. Winds were light and autobrakes kept aircraft tracking on centerline. While taxiing to gate, troubleshooting revealed that the rudder was in fact jammed in the neutral (faired) position. Callback conversation with reporter revealed the following information: reporter captain first noticed a stiffness in rudder travel on short approach to landing. With a light crosswind he tried to straighten the nose with rudders and found them unusually stiff. He had selected medium autobrakes because of local runway conditions and the autobrakes tracked true down the runway on rollout. When the autobrakes were disconnected and the reporter started steering with the nosewheel steering he noticed the steering was jerky. During taxi, the captain had the first officer taxi the aircraft while he selected the flight control page and attempted to displace the rudder pedals. Not only would the rudder pedals not move off neutral, the indicator didn't move either. The aircraft was written up for both discrepancies and taken OTS. At first the nosewheel steering actuator was replaced and apparently that didn't fix the problem. Then maintenance replaced a steering sensor and there have been no further problems.
Original NASA ASRS Text
Title: RUDDER TRAVEL VERY RESTR ON LNDG. USE OF NOSEWHEEL STEERING RESULTED IN JERKY MOTION. POSSIBLE CONNECTION BTWN NOSEWHEEL STEERING SENSOR, RUDDER PEDAL STEERING AND FLT RUDDER CAPABILITY.
Narrative: RUDDER TRAVEL VERY RESTR ON LNDG. WINDS WERE LIGHT AND AUTOBRAKES KEPT ACFT TRACKING ON CTRLINE. WHILE TAXIING TO GATE, TROUBLESHOOTING REVEALED THAT THE RUDDER WAS IN FACT JAMMED IN THE NEUTRAL (FAIRED) POS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR CAPT FIRST NOTICED A STIFFNESS IN RUDDER TRAVEL ON SHORT APCH TO LNDG. WITH A LIGHT XWIND HE TRIED TO STRAIGHTEN THE NOSE WITH RUDDERS AND FOUND THEM UNUSUALLY STIFF. HE HAD SELECTED MEDIUM AUTOBRAKES BECAUSE OF LCL RWY CONDITIONS AND THE AUTOBRAKES TRACKED TRUE DOWN THE RWY ON ROLLOUT. WHEN THE AUTOBRAKES WERE DISCONNECTED AND THE RPTR STARTED STEERING WITH THE NOSEWHEEL STEERING HE NOTICED THE STEERING WAS JERKY. DURING TAXI, THE CAPT HAD THE FO TAXI THE ACFT WHILE HE SELECTED THE FLT CTL PAGE AND ATTEMPTED TO DISPLACE THE RUDDER PEDALS. NOT ONLY WOULD THE RUDDER PEDALS NOT MOVE OFF NEUTRAL, THE INDICATOR DIDN'T MOVE EITHER. THE ACFT WAS WRITTEN UP FOR BOTH DISCREPANCIES AND TAKEN OTS. AT FIRST THE NOSEWHEEL STEERING ACTUATOR WAS REPLACED AND APPARENTLY THAT DIDN'T FIX THE PROB. THEN MAINT REPLACED A STEERING SENSOR AND THERE HAVE BEEN NO FURTHER PROBS.
Data retrieved from NASA's ASRS site as of July 2007 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.