As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CARGO HEAT VALVE AFT FAILURE OF AFT CARGO HEAT SHUTOFF VALVE OR (SOV) OR TEMP CONTROL VALVE (TCV). STATUS MSG-2112031 INACTV ER MODE MSG-2112021 INACTV DC MODE. COMPLIED WITH MEL PROCEDURE AND MAINT ACTION CARRIED OUT. PSBL VLV (PCN 646-0013), EXPEDITED ON *L2510* IF NEEDED. AFT CARGO HEAT SHUTOFF VALVE CHANGED.