As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE THE PARKING BRAKE ON LIGHT ILLUMINATED. AFTER CONSULTATION WITH MTCE THE LIGHT WENT OUT. AS A PRECAUTION THE CREW ELECTED TO DECLARE A PAN PAN AND HAVE CFR ON STAND BY FOR THEIR ARRIVAL. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. RESOLUTION PARKING BRAKE VALVE REPLACED AS PER AMM 32-44-01/401. EMERGENCY PARK BRAKE PRESSURE SWITCH REPLACED AS PER AMM 32-44-09/401.