What was found
ON GEAR DOWN SELECTION, ONLY 3 RED LIGHTS, RECYCLED SAME. ATTEMPTED NORMAL DOWN SELECTION AT BASE, 3 RED AGAIN ONLY. CONDUCTED ALTERNATE GEAR EXTENSION SUCCESSFULLY. NOSEWHEEL STEERING HAD DROPPED OUT TWICE ON TAXI AND RESET ON DEPARTURE AT BASE PREVIOUSLY. ACFT LANDED SAFELY AT APPROX 18:00. MX " HYD SELECTOR VALVE REPLACED IAW AMM 32-30-41, NO DEFECTS EVIDENT, NOSE WHEEL STEERING CHECKED OK DURING TAXI."