As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN REPORTED THAT DURING TAKEOFF AT ROTATION SPEED, A VIBRATION WAS FELT IN THE NLG. PERFORMED A NLG REVISION IAW MM 32-00-00, NO FAILURES DETECTED. AS A PRECAUTIONARY ACTION, BOTH NLG WHEELS WERE REPLACED IAW AMM 32-45-21, ALL CORRECT.