As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOUD NOISE FROM NOSE WHEEL CONTINUED FOR ABOUT 7 MIN AFTER TAKEOFF & THEN WAS OUT & CAME BACK AGAIN, IT SEEMS LIKE WAS A GRINDING NOISE. DURING CLIMB NO EICAS INDICATION. INSPECTED ACFT NOSE AREA INCLUDING NLG & FOUND NOSE TIRES WITH FLAT SPOTS. R & R NLG TIRES IAW AMM 32-49-05 & WORK CARD 32-700-17.