As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLT 1878 - ON TAXI OUT, LEFT BRAKES WERE WEAK ON STOPPING AIRCRAFT. AIRCRAFT RETURNED TO GATE WITHOUT INCIDENT. NR 1 AND NR 2 BRAKE ASSEMBLIES WERE BLED. ALL BRAKE BOOSTERS WERE CHECKED AND FOUND TO BE IN THE GREEN BAND. SYSTEM GROUND CHECKED, NORMAL OPERATION. (X)