As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE HIGH PRESSURE TURBINE CASE COOLING ACTUATOR IS STUCK OR REVERTED TO ITS FAIL-SAFE POSITION. STATUS A) HPT ACT MSG01- ACTIVE DESCENT TURBINE CASE CLG AIR VLV ACTR (R ENG) HPT ACTUATOR DOES NOT FOLLOW COMMAND. REPLACED NR 2 ENG TCC ACTUATOR AND HARNESS PER MM 75-24-05 AND 71-51-00. OPS AND MAT CK PASS.