As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A RIGHT HAND REV UNLOCK MESSAGE IN FLIGHT. CREW ELECTED TO DIVERT TO PIT AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND DEFERRED THE RIGHT HAND THRUST REVERSER PER MEL 78-30-1-1. MAINTENANCE REMOVED AND REPLACED THE POWER DRIVE UNIT IN ACCORDANCE WITH THE AIRCRAFT MAINTENANCE MANUAL. OPS CHECKS WERE GOOD. AIRCRAFT WAS RELEASED FOR SERVICE.