As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LHR INFLIGHT T104/26SEPT - ON CLIMB-OUT, TIRE PRESSURE ADVISORY ILLUMINATED. RIGHT NOSE WHEEL INDICATED ONE PSI. LEFT NOSE WHEEL INDICATED 219 PSI. RETURNED TO LHR AND LANDED WITHOUT INCIDENT. FOUND RIGHT HAND NOSE TIRE DEFLATED. CHANGED RIGHT AND LEFT NOSE TIRES. SYSTEM GROUND CHECKED NORMAL OPERATION.