What was found
WHILE CONFIGURING THE AIRCRAFT TO LAND, THE CREW SELECTED THE LANDING GEAR FOR LANDING. BOTH THE FORWARD AND OVERHEAD PANEL’S LANDING GEAR INDICATORS REMAINED RED, INDICATING AN UNSAFE GEAR SITUATION. THE CREW DISCONTINUED THE APPROACH TO LAND, DECLARED AN EMERGENCY, AND RAN THE QRH. THE FLIGHT THEN LANDED WITHOUT ANY FURTHER INCIDENT. MAINTENANCE TROUBLESHOT SYSTEM AND FOUND A BAD LANDING GEAR SELECTOR VALVE AND REPLACED. OPS CHECK GOOD.