As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, CARGO COMPARTMENT OVERHEAT LIGHT CAME ON. TURN OFF SYSTEM AND LIGHT WENT OUT SHORTLY AFTER. INSPECTED AIRCRAFT AND FOUND CARGO COMPARTMENT FLOW CONTROL SHUTOFF VALVE PARTIALLY OPEN. REPLACED CARGO COMPARTMENT FLOW CONTROL VALVE, OPS AND LEAK CHECKED GOOD PER MM CH 21.