As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOUD NOISE COINCIDING WITH THE ROTATION OF THE WHEELS. CHANGED SOUND WITH THE APPLICATION OF LEFT BRAKE. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE PERFORMED GVI OF NLG AND MLG IAW B767 AMM 32-05-03-212-802+807. PERFORMED TAXI IAW B767 AMM 09-21-00. NO DEFECTS OR ABNORMAL NOISES. AIRCRAFT RETURNED TO SERVICE.