As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT REV ISOLATION VALVE EICAS CAME ON AT LANDING WITH LEFT ENGINE REVERSER YELLOW STAYING ON. STATUS MESSAGE LT REVERSER ISOLATION VALVE & LT REVERSER INTERLOCK WAS ALSO DISPLAYED. VISUAL INSP SHOWS INBOARD REVERSER SHELL FULLY OPEN, FOUND CENTER DRIVE & FWD BACK HOUSING CRACKED. REMOVED AND REPLACED CENTER DRIVE IAW MM 78-31-21.