What was found
NOSE GEAR WOULD NOT MOVE TO THE UP POSITION AFTER T/O. BOTH GREEN & RED LIGHTS REMAINED ILLUMINATED. THE GEAR REMAINED IN THE DOWN POSITION. T/S PER FIM 32-30 TASK 810. COULD NOT DUPLICATE. AS A PRECAUTION, R & R''D NLG LOCK ACT PER AMM 32-33-21 & NLG LOCK VLV MANIFOLD PER AMM 32-33-31. OPS CHECK NORMAL, NO LEAKS NOTED. ACFT OK FOR SVC. ROTABLE PARTS CHANGE WAS INDICATED - TT 1284616 S/N OFF 00334 TT 1332088 S/N OFF 00635 ACTUATOR, NLG, OFF 29-3233-9-9001 0334 ON 29-3233-9-9001 0702 VALVE, MANIFOLD OFF 29-3233-9-0003 0635 ON 29-3233-9-0003 0456.