What was found
AFTER GEAR RETRACTION, RED "GEAR UNSAFE" ANNUNCIATOR DID NOT EXTINGUISH. THE NOSE GEAR SOUNDED AS THOUGH IT WAS RETRACTED, BUT THEN THERE WAS HEARD APPOX. 6 LOUD BANGS IN SUCCESSION AS NOSE GEAR ATTEMPTED TO RECYCLE ITSELF, ACCOMPANIED BY A COINCIDENTAL FLICKERING "GEAR UNSAFE" ANNUNCIATOR. NOSEGEAR THEN STOWED, WITH NO UNSAFE INDICATIONS. R & R NOSE GEAR UPLOCK ACTUATOR. R & R SHUTTLE VALVE. PERFORMED SEVERAL SATISFACTORY GEAR SWINGS. OPS AND LEAK CHECKED GOOD. WORK PERFORMED IAW MM 32-30-50.