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An airbus 320, on landing rollout, incurred loss of steering, antiskid and normal braking. Aircraft towed off high speed taxiway.
| Attributes | |
| ACN | 605559 |
| Time | |
| Date | 200401 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : lax.airport |
| State Reference | CA |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : atp pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 200 flight time total : 21000 flight time type : 8000 |
| ASRS Report | 605559 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : ecam warning other flight crewa other flight crewb |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : testing performance deficiency : inspection performance deficiency : installation performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
During landing rollout on runway 25L at lax, we got an ECAM warning 'bscu fault' (brake, steering control unit). We lost steering, antiskid and normal brakes. I managed, through differential braking, to steer off at a high speed taxiway. After stopping between runways, we cycled the nosewheel steering several times with no success. We advised that we would not need assistance until we reached the top of the alley. At the top of the alley, we were towed to the gate. When maintenance came out of the aircraft, they told us that the bscu computer was within a couple of inches of sliding completely out of the rack. The computer had not been clamped down during its last rerack or installation by maintenance.
Original NASA ASRS Text
Title: AN AIRBUS 320, ON LNDG ROLLOUT, INCURRED LOSS OF STEERING, ANTISKID AND NORMAL BRAKING. ACFT TOWED OFF HIGH SPD TXWY.
Narrative: DURING LNDG ROLLOUT ON RWY 25L AT LAX, WE GOT AN ECAM WARNING 'BSCU FAULT' (BRAKE, STEERING CTL UNIT). WE LOST STEERING, ANTISKID AND NORMAL BRAKES. I MANAGED, THROUGH DIFFERENTIAL BRAKING, TO STEER OFF AT A HIGH SPD TXWY. AFTER STOPPING BTWN RWYS, WE CYCLED THE NOSEWHEEL STEERING SEVERAL TIMES WITH NO SUCCESS. WE ADVISED THAT WE WOULD NOT NEED ASSISTANCE UNTIL WE REACHED THE TOP OF THE ALLEY. AT THE TOP OF THE ALLEY, WE WERE TOWED TO THE GATE. WHEN MAINT CAME OUT OF THE ACFT, THEY TOLD US THAT THE BSCU COMPUTER WAS WITHIN A COUPLE OF INCHES OF SLIDING COMPLETELY OUT OF THE RACK. THE COMPUTER HAD NOT BEEN CLAMPED DOWN DURING ITS LAST RERACK OR INSTALLATION BY MAINT.
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.