What was found
ON FLIGHT 4849 THE CREW REPORTED THAT DURING THE CLIMB THE LANDING GEAR WOULD NOT RETRACT. BOTH MAIN GEARS UNSAFE INDICATION ON BOTH LANDING GEAR INDICATIORS NR 1 & 2. THE CREW HEARD A LOUD NOISE FROM THE WHEEL WELL. DECLARED AN EMERGENCY. AND RETURNED FIELD. LANDED WITHOUT INCIDENT. ACFT REMOVED FROM SERVICE. AFTER TROUBLE SHOOTING, REMOVED AND REPLACED THE LANDING GEAR SELECTOR VALVE AS PER JIC 32-31-51. REMOVED & REPLACED NR 2 MULTI FUNCTION COMPUTER AS PER JIC 31-48-81. OPS CHECKED SATISFACTORY. NO LEAKS NOTED. RETURNED TO SERVICE.