What was found
NOSE GEAR UNSAFE RED WARNING LIGHT ILLUMINATED DURING UPLATCH CHECK (APPROX 10,000 FT MSL), COMPLIED WITH ABNORMAL. RECYCLED LANDING GEAR AND GOT GOOD DOWN AND LOCK (GREEN INDICATORS) WHEN THE LANDING GEAR WAS RETRACTED, THE NOSE GEAR UNSAFE LIGHT CAME ON AGAIN AND REMAINED ON. GEAR EXTENSION FOR LANDING WAS NORMAL. FOUND NOSE GEAR UPLOCK SWITCH BAD, INTERMITTENT OPERATION. REMOVED AND REPLACED NOSE GEAR UPLOCK SWITCH IAW ABX DC-9 AMM 32-60-01-2-0101. OPS CHECKED GOOD IAW ABX DC-9 AM 32-60-00-1-0101.