As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
40 MINUTES AFTER REACHING CRUISE, RECEIVED TIRE PRESSURE EICAS ALERT. PRESSURE WAS LOW ON TIRE NR 10. PRESSURE WENT FROM 204 -114 OVER AN HOUR, DIVERTED. INSPECTED TIRE, NO VISUAL DEFECTS NOTED. R & R LOW NR 10 TIRE AND ADJACENT NR 9 TIRE IAW MM 32-45-01-4. INSPECTED LT GEAR FOR DAMAGE, NONE NOTED. FAILED OPS CHECK. REPLACED WITH SERVICEABLE UNIT. PREMATURE REMOVAL/INSTALLATION.