As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R HPSOV VALVE MESSAGE APPEARED IN CRUISE CREW DIVERTED FROM SJO TO MIA. DESTINATION WAS CVG. MAINTENANCE GROUNDED AC AND DEFERRED RH HPSOV AND LOCK OUT IAW MEL 36-11-2 .AND RETURNED AC TO SERVICE TO CONTINUE TO FLY TO CVG . WHERE THEY REPLACED THE PRSOV AND CLEARED THE DEFERRAL.