What was found
AFTER TAKE OFF, AT GEAR RETRACTION, ECAM ALERT FOR HIGH BRAKE TEMP. NR 7 WHEEL AT 685'C, ALL OTHERS AROUND 20-30'C. FINISHED GEAR RETRACTION & THEN EXTENDED GEAR FOR COOLING & BRAKE FANS ON, CONTINUED CLIMB TOOK 12 MINUTES OR SO TO COOL TO 295'C & RETRACT GEAR AT 230KTS. WITH RETRACT HEAT TO 300 & THEN DROP TO 295 & SLOWLY COLLING DOWN, TIRES 3, 4 & 8 REMAIN AT 15'C, 15'C & 20'C. 50 MINUTES INTO FLT NR 7 MAIN AT 215'C & SLOWLY COOLING ON LANDING NR 7 355' WITH FANS AT 300'C. AFTER BRAKE HAS TOTALLY COOLED DOWN, JACKED THE ACFT AND TRIED TO SPIN TIRE NR 7 AND FOUND VERY DIFFICULT TO ROTATE. REMOVED NR 7 TIRE AND CONFIRMED NO ABNORMALITIES NOTED. CONFIRMED NR 7 BRAKE DRAGGING. REMOVED AND REPLACED THE BRAKE ASSY IAW AMM 32-42-27-04.