As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EQUIPMENT COOLING MESSAGE. SUSPECT FLT DECK FLOW REG VALVE INOP. OPENED FLOOR PANEL AND MANUALLY MOVED VALVE TO OPEN. TRANSFER TO DMI 248403 PER MEL 21-61-13 CAT C. R & R FD FLOW REG VALVE AS PER AMM 21-61-09 & AIPC 21-21-06. OPS AND LEAK CHK GOOD. DMI 248403 CLEARED. PLACARDS REMOVED.