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Runway excursion when an E135 flight crew cannot keep the aircraft on the runway with full use of rudder, differential braking and tiller operation at dfw, tx. Postflt inspection revealed a faulty nosewheel steering manifold.
| Attributes | |
| ACN | 620855 |
| Time | |
| Date | 200406 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dfw.airport |
| State Reference | TX |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | EMB ERJ 135 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | landing : roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 6400 flight time type : 2800 |
| ASRS Report | 620855 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 210 flight time total : 2550 flight time type : 1200 |
| ASRS Report | 622400 |
| Events | |
| Anomaly | aircraft equipment problem : critical excursion : runway other anomaly |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | none taken : unable |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Stable approach. Captain was PNF. First officer was PF. Main wheels touched down in touchdown zone. Nosewheel touched down on centerline. The plane started to veer to the right. At the same time the first officer informed me that his inputs (rudder pedal left) were not being reciprocated by the aircraft. I then got on the controls to help him, however the left rudder pedal steering did not respond to our commands. I also tried differential braking, and as a last ditch effort, I tried the tiller, but it did not help. The aircraft ran off the right side of the runway. We then shut down the aircraft using the appropriate checklists. Supplemental information from acn 622400: it was a normal approach and landing until the nosewheel hit. After the problem, maintenance found that the steering manifold was faulty and replaced it.
Original NASA ASRS Text
Title: RWY EXCURSION WHEN AN E135 FLT CREW CANNOT KEEP THE ACFT ON THE RWY WITH FULL USE OF RUDDER, DIFFERENTIAL BRAKING AND TILLER OP AT DFW, TX. POSTFLT INSPECTION REVEALED A FAULTY NOSEWHEEL STEERING MANIFOLD.
Narrative: STABLE APCH. CAPT WAS PNF. FO WAS PF. MAIN WHEELS TOUCHED DOWN IN TOUCHDOWN ZONE. NOSEWHEEL TOUCHED DOWN ON CTRLINE. THE PLANE STARTED TO VEER TO THE R. AT THE SAME TIME THE FO INFORMED ME THAT HIS INPUTS (RUDDER PEDAL L) WERE NOT BEING RECIPROCATED BY THE ACFT. I THEN GOT ON THE CTLS TO HELP HIM, HOWEVER THE L RUDDER PEDAL STEERING DID NOT RESPOND TO OUR COMMANDS. I ALSO TRIED DIFFERENTIAL BRAKING, AND AS A LAST DITCH EFFORT, I TRIED THE TILLER, BUT IT DID NOT HELP. THE ACFT RAN OFF THE R SIDE OF THE RWY. WE THEN SHUT DOWN THE ACFT USING THE APPROPRIATE CHKLISTS. SUPPLEMENTAL INFO FROM ACN 622400: IT WAS A NORMAL APCH AND LNDG UNTIL THE NOSEWHEEL HIT. AFTER THE PROB, MAINT FOUND THAT THE STEERING MANIFOLD WAS FAULTY AND REPLACED IT.
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.