As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AFTER TAKEOFF ROTATION FELT VIBRATION IN FLIGHT DECK AND ON THROTTLES AND THROTTLE QUADRANT. DECESION MADE TO RETF, CIRCLE TO BURN FUEL AIRCRAFT LANDED WITHOUT INCIDENT. FOUND BOTH TIRES SLIGHTLY OUT OF ROUND TIRES PRESSURES LT NOSE 200 AND R/H NOSE TIRE 210 BEFORE REPLACEMENT. MAINTENANCE REPLACED NLG RIGHT TIRE IAW AMM 32-45-21 -000-801.