A B757-200 was dispatched in non compliance and operated with #5 tire on the right main gear inner bearing missing incurring damage to the axle and wheel.

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Attributes
ACN	458380
Time
Date	199912
Day	Mon
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	ground : parked ground : maintenance
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
Experience	maintenance technician : 19
ASRS Report	458380
Person 2
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : weather contributing factor : lighting contributing factor : schedule pressure performance deficiency : inspection performance deficiency : repair performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Weather Aircraft Company Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

#5 main wheel replaced due to FOD. On subsequent replacement after movement, tire was found to have inner bearing missing. No abnormalities noted during the check of wheel prior to installation. Contributing factors: rain, darkness, supertug waiting to move the aircraft. Problem was discovered during tire pressure check during layover. Corrective actions were replacing tire brake and axle.

Original NASA ASRS Text

Title: A B757-200 WAS DISPATCHED IN NON COMPLIANCE AND OPERATED WITH #5 TIRE ON THE R MAIN GEAR INNER BEARING MISSING INCURRING DAMAGE TO THE AXLE AND WHEEL.

Narrative: #5 MAIN WHEEL REPLACED DUE TO FOD. ON SUBSEQUENT REPLACEMENT AFTER MOVEMENT, TIRE WAS FOUND TO HAVE INNER BEARING MISSING. NO ABNORMALITIES NOTED DURING THE CHK OF WHEEL PRIOR TO INSTALLATION. CONTRIBUTING FACTORS: RAIN, DARKNESS, SUPERTUG WAITING TO MOVE THE ACFT. PROB WAS DISCOVERED DURING TIRE PRESSURE CHK DURING LAYOVER. CORRECTIVE ACTIONS WERE REPLACING TIRE BRAKE AND AXLE.

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.