What was found
AIRCRAFT WAS GROUNDED: AFTER LANDING, WHILE TAXIING, NOTICEABLE REPEATED VIBRATION AND THUMPING WAS FELT THROUGH THE AIRCRAFT EACH TIME THE BRAKES WERE APPLIED WHICH RESEMBLIED TAXIING OVER POTHOLES - MAINTENANCE FOUND THE LEFT MAIN LANDING GEAR POSITION 1 BRAKE FAN WAS INOPERATIVE AND THE IMPELLER WAS MISSING ALL BLADES ALONG WITH THE GUARD BEING BROKEN - MAINTENANCE ALSO REPORTED THAT THE POSITION 1 BRAKE AND WHEEL ASSEMBLIES WERE DAMAGED - MAINTENANCE REPLACED IMPELLER ASSEMBLY *AALA202609280342* ALONG WITH THE DAMAGED BRAKE ASSEMBLY *AALA202609281563* WHEEL ASSEMBLY *AALA202609284266* AND THE GUARD ASSEMBLY *AALA202609283139* - A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES REPORTED