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An air carrier MD11 flight crew noticed some maintenance discrepancies during a preflight and alerted maintenance personnel who replaced repaired the defective components then released the aircraft for service. After postflt at next stop flight crew noticed additional damage presumably as a result of the initial discrepancy.
| Attributes | |
| ACN | 452682 |
| Time | |
| Date | 199910 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-11 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer other personnel |
| Qualification | pilot : flight engineer pilot : commercial pilot : multi engine pilot : instrument |
| Experience | flight time last 90 days : 220 flight time total : 16000 flight time type : 5000 |
| ASRS Report | 452 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : far non adherence : published procedure non adherence : company policies other anomaly other |
| Independent Detector | other flight crewa other other : 4 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
| Air Traffic Incident | other |
Narrative:
On walkaround, preflight tire rubber peeled off with hydraulic line damage in upper wheel well/strut/flag area, with loss of hydraulic #1. After tire and hydraulic line change, anti-skid could not be repaired. On arrival at next station, additional damage was found on the flap. Most of the damage was on the top or back side of the flap. In rethinking the chain of events a better inspection of the flap/wheel well area should have been done, with flap extension and cycle at the gate.
Original NASA ASRS Text
Title: AN ACR MD11 FLC NOTICED SOME MAINT DISCREPANCIES DURING A PREFLT AND ALERTED MAINT PERSONNEL WHO REPLACED REPAIRED THE DEFECTIVE COMPONENTS THEN RELEASED THE ACFT FOR SVC. AFTER POSTFLT AT NEXT STOP FLC NOTICED ADDITIONAL DAMAGE PRESUMABLY AS A RESULT OF THE INITIAL DISCREPANCY.
Narrative: ON WALKAROUND, PREFLT TIRE RUBBER PEELED OFF WITH HYD LINE DAMAGE IN UPPER WHEEL WELL/STRUT/FLAG AREA, WITH LOSS OF HYD #1. AFTER TIRE AND HYD LINE CHANGE, ANTI-SKID COULD NOT BE REPAIRED. ON ARR AT NEXT STATION, ADDITIONAL DAMAGE WAS FOUND ON THE FLAP. MOST OF THE DAMAGE WAS ON THE TOP OR BACK SIDE OF THE FLAP. IN RETHINKING THE CHAIN OF EVENTS A BETTER INSPECTION OF THE FLAP/WHEEL WELL AREA SHOULD HAVE BEEN DONE, WITH FLAP EXTENSION AND CYCLE AT THE GATE.
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.