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An MD88 was dispatched in non compliance with a B727 main wheel bearing installed on an MD88 main wheel inner bearing position.
| Attributes | |
| ACN | 475571 |
| Time | |
| Date | 200006 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-88 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 40 |
| ASRS Report | 475571 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 31 |
| ASRS Report | 475572 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : anti-skid failure other other : person |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : inspection performance deficiency : installation performance deficiency : repair |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication Company |
| Primary Problem | Maintenance Human Performance |
Narrative:
An MD88 main wheel assembly was assembled and the wrong inner wheel bearing was installed. The wheel bearing installed was a B727 main wheel inner wheel bearing instead of an MD88 main inner wheel bearing. Crew reported anti-skid fail. Line maintenance noted 1/2 inch wheel play. Removed wheel assembly and found incorrect wheel bearing. No axle damage found. Brake assembly replaced as precautionary. Aircraft returned to service without further incident.
Original NASA ASRS Text
Title: AN MD88 WAS DISPATCHED IN NON COMPLIANCE WITH A B727 MAIN WHEEL BEARING INSTALLED ON AN MD88 MAIN WHEEL INNER BEARING POS.
Narrative: AN MD88 MAIN WHEEL ASSEMBLY WAS ASSEMBLED AND THE WRONG INNER WHEEL BEARING WAS INSTALLED. THE WHEEL BEARING INSTALLED WAS A B727 MAIN WHEEL INNER WHEEL BEARING INSTEAD OF AN MD88 MAIN INNER WHEEL BEARING. CREW RPTED ANTI-SKID FAIL. LINE MAINT NOTED 1/2 INCH WHEEL PLAY. REMOVED WHEEL ASSEMBLY AND FOUND INCORRECT WHEEL BEARING. NO AXLE DAMAGE FOUND. BRAKE ASSEMBLY REPLACED AS PRECAUTIONARY. ACFT RETURNED TO SVC WITHOUT FURTHER INCIDENT.
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.