A B737-800 WITH A NEW BRAKE INSTALLED HAD 3 FLTS WITH NO BRAKE PROBS. THE 4TH AND 5TH FLTS RPTED HIGH #3 BRAKE TEMPS.

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UPON A LINE SVC CHK ON THE NIGHT OF OCT/SAT/03 WE FOUND THE #3 MAIN LNDG GEAR BRAKE WORN TO LIMITS. WE REPLACED THE BRAKE IN ACCORDANCE WITH AMM 32-41-41-4. WE INSPECTED AND REINSTALLED THE TIRE THAT WAS ON THE ACFT; NO DAMAGE OR DISCREPANCIES NOTED. THE TIRE ROTATED FREELY WHILE INSTALLING THE AXLE NUT. WE RELEASED THE ACFT IN THE MORNING FOR FLT. THE ACFT FLEW TO WITH NO DISCREPANCIES. THE CREW WROTE UP HIGH BRAKE TEMP AT ZZZ1 FOR THE #3 BRAKE. THIS IS NOT UNUSUAL AT ZZZ1 DUE TO THE SHORT RWYS. ZZZ1 MAINT INSPECTED THE BRAKE/RIM/TIRE IN ACCORDANCE WITH FIM 32-46-00 WITH NO PROBS NOTED. ACFT WAS RELEASED INTO SVC. THE ACFT FLEW ZZZ1-ZZZ3 WHERE IT WAS TO REMAIN OVERNIGHT. THE CREW ONCE AGAIN WROTE UP THE #3 BRAKE FOR HIGH TEMP. ZZZ3 MAINT INSPECTED THE TIRE WITH NO PROBS NOTED. MAINT CTL OPTED TO REPLACE THE BRAKE AND TIRE ASSEMBLY DUE TO THE TEMP PROBS. ZZZ3 MAINT RPTED TO MAINT CTL THAT THE WHEEL AND BRAKE ASSEMBLY HAD TO BE REMOVED AS ONE UNIT DUE TO THE 2 INBOARD BRAKE SHOW SLOTS BEING DAMAGED AND THE WHEEL ASSEMBLY BRAKE GUIDES HAVING SOME DAMAGE ON THEM. ALSO; THE DAMAGE WAS DETECTED AFTER THEY REMOVED THE BRAKE AND WHEEL ASSEMBLY. ZZZ3 MAINT RPTED TO MAINT CTL THAT THE DAMAGE WAS DONE WHEN THE BRAKE WAS INSTALLED. I DISAGREE THAT THE PROB OCCURRED DURING INSTALLATION. I BELIEVE THAT THIS PROB OCCURRED DURING THE COURSE OF NORMAL SVC. WE HAVE HAD BRAKE SHUDDER AND HOT BRAKE PROBS ON THESE ACFT FOR THE PAST 2 YRS WITH A COUPLE OF NEW BRAKES FROM STOCK BEING BAD FROM STOCK. ZZZ3 MAINT REPLACED THE BRAKE AND WHEEL ASSEMBLY AND RELEASED THE ACFT FOR SVC IN THE MORNING. NO ADDITIONAL HIGH BRAKE TEMP WRITE-UPS HAVE BEEN RECORDED ON THE #3 BRAKE AT THIS TIME. THIS INCIDENT DID NOT CAUSE ANY FLT DELAYS OR SAFETY OF FLT ISSUES AND ALL MAINT MANUALS WERE DOCUMENTED AND FOLLOWED PER ALL LOGBOOK ENTRIES. I ATTRIBUTE THIS ISSUE TO A COMPONENT FAILURE AND HAVE ADDRESSED THE ISSUE WITH MY MGR.