What was found
ON DEPARTURE CLIMBING THROUGH APPROX 1500' AGL, NOSE GEAR DROPPED BACK DOWN WITH GEAR HANDLE IN OFF POSITION. NOSE GEAR CAME BACK UP WHEN GEAR HANDLE MOVE BACK TO UP THEN OFF. QRH PROCEDURE CONSULTED/ACCOMPLISHED. ACFT GROUNDED. PERFORMED FIM TASK 32-30-00-810-809. RAN NOSE GEAR MULTIPLE TIMES, NO DEFECTS NOTED, GEAR HANDLE FELT SMOOTH AND LATCHED INTO "OFF" DETENT NORMAL. ACCOMPLISHED NOSE GEAR MANUAL EXTENSION SYS TEST IAW TASK AMM 32-35-00-730-801. OPS CHECKED NORMAL. LUBED NOSE LANDING GEAR IAW AMM 12-21-21.