As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED GEAR DISAGREE AND RED INDICATION FOR BOTH MAIN GEAR UPON SELECTION OF GEAR DOWN ON APPROACH INTO BNA. CREW RAN QRH AND RECEIVED THREE (3) GREEN INDICATIONS AND HYD 3 LOW PRESS CAUTION. AIRCRAFT LANDED IN BNA WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT HYDRAULIC SYSTEM NUMBER THREE (3), REMOVED AND REPLACED PRESSURE RELIEF VALVE AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT RELEASED FOR SERVICE.