As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TIRE PRESSURE EICAS MESSAGE AFTER GEAR SYNOPSIS SHOWED GRADUAL LOSS OF PRESSURE DURING FLT ON LT NOSE TIRE EMERGENCY LANDING DECLARED. PERFORMED TIRE INSP PER MM. FOUND LT NOSE TIRE 20 PERCENT BELOW LIMIT. REMOVED AND REPLACED RT AND LT WHEEL AND NOSE TIRE ASSY PER MM SPACER INSTALLED.