What was found
MAD - CREW REPORTED PARKING BRAKE LIGHT ILLUMINATED DURING FLIGHT. EMERGENCY DECLARED LANDED MAD WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED PARKING BRAKE VALVE. SYSTEM GROUND CHECKED NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MAD - CREW REPORTED PARKING BRAKE LIGHT ILLUMINATED DURING FLIGHT. EMERGENCY DECLARED LANDED MAD WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED PARKING BRAKE VALVE. SYSTEM GROUND CHECKED NORMAL OPERATION.