As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT T/O REVERSER UNLOCK LIGHT CAME ON NR 3 ENG NO ASSOCIATED PROBLEMS. NR 3 THRUST REVERSER INOP. *S/D* REMOVED AND REPLACED NR 3 LT AND RT DRIVE CABLES, REMOVED AND REPLACED SWITCH RIGGED IAW MM DC10-10 78-32-17-2, PDU IAW DC10-10 MM 78-31-01-2.