Narrative:

Aircraft dispatched on fri jun 07 with channel 1 of bscu deferred inoperative. Log history showed numerous system related gripes: thurs jun 07 bscu channel 2 ECAM; wed jun 07 northwest steer fault ECAM; thurs jun 07 northwest steer fault ECAM; and thurs jun 07 northwest steer fault ECAM. Approximately 1 hour into flight; at cruise level a 'northwest steer fault ECAM' illuminated. As per flight manual; cycled 'a/skid and northwest strg' switch with no effect. Discussed situation with dispatch and maintenance control and decided to conduct normal landing to full stop on runway and request a tow to the gate. Briefed purser and issued a cabin advisory. Instructed flight attendants to expect a normal landing and rollout. Completion of flight to complete stop was uneventful. During landing rollout; determined NWS was inoperative. Conducted tow in checklist and was towed to gate. In retrospect; it is apparent that the numerous previous gripes had not been addressed correctly and system failure eventually occurred.supplemental information from acn 744108: this was the third occurrence in past week.

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Original NASA ASRS Text

Title: AN AIRBUS A320 ACFT DISPATCHED WITH BRAKE STEERING CONTROL UNIT (BSCU) CHANNEL ONE DEFERRED INOP. CHANNEL TWO FAILED IN-FLIGHT. ACFT LANDED WITHOUT ANY STEERING CONTROL.

Narrative: AIRCRAFT DISPATCHED ON FRI JUN 07 WITH CHANNEL 1 OF BSCU DEFERRED INOP. LOG HISTORY SHOWED NUMEROUS SYSTEM RELATED GRIPES: THURS JUN 07 BSCU CHANNEL 2 ECAM; WED JUN 07 NW STEER FAULT ECAM; THURS JUN 07 NW STEER FAULT ECAM; AND THURS JUN 07 NW STEER FAULT ECAM. APPROXIMATELY 1 HOUR INTO FLIGHT; AT CRUISE LEVEL A 'NW STEER FAULT ECAM' ILLUMINATED. AS PER FLIGHT MANUAL; CYCLED 'A/SKID AND NW STRG' SWITCH WITH NO EFFECT. DISCUSSED SITUATION WITH DISPATCH AND MAINT CTL AND DECIDED TO CONDUCT NORMAL LANDING TO FULL STOP ON RUNWAY AND REQUEST A TOW TO THE GATE. BRIEFED PURSER AND ISSUED A CABIN ADVISORY. INSTRUCTED FLT ATTENDANTS TO EXPECT A NORMAL LANDING AND ROLLOUT. COMPLETION OF FLIGHT TO COMPLETE STOP WAS UNEVENTFUL. DURING LANDING ROLLOUT; DETERMINED NWS WAS INOP. CONDUCTED TOW IN CHECKLIST AND WAS TOWED TO GATE. IN RETROSPECT; IT IS APPARENT THAT THE NUMEROUS PREVIOUS GRIPES HAD NOT BEEN ADDRESSED CORRECTLY AND SYSTEM FAILURE EVENTUALLY OCCURRED.SUPPLEMENTAL INFO FROM ACN 744108: THIS WAS THE THIRD OCCURRENCE IN PAST WEEK.

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.