As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED LEFT REVERSER UNLOCK MESSAGE AT ALTITUDE. CREW DIVERTED AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND DEFERRED LEFT THRUST REVERSER PER MEL. AIRCRAFT RELEASED FOR SERVICE. MAINTENANCE SUBSEQUENTLY REMOVED AND REPLACED LEFT THRUST REVERSER POWER DRIVE UNIT (PDU), PERFORMED CHECKS AND CLEARED DEFERRAL. ALL WORK ACCOMPLISHED BY MAINTENANCE USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT RELEASED FOR SERVICE.