What was found
CREW CONTACTED FLIGHT CONTROL DURING CLIMB, TO STATE THAT THEIR LANDING GEAR WOULD NOT RETRACT. DID NOT HAVE ENOUGH FUEL TO CONT TO DESTINATION WITH GEAR DOWN, THE FLIGHT DIVERTED & LANDED WITHOUT INCIDENT. REPLACED LANDING GEAR SLECTOR VALVES IAW AMM 32-31-12-0401, NO FAULTS. REPLACED LANDING GEAR CONTROL SWITCHES IAW AMM 32-31-11-0401, NO FAULTS.