What was found
NOSE GEAR UNSAFE LIGHT CAME ON AFTER LEVEL OFF AT 330. LIGHT STAYED ON FOR REMAINDER OF FLIGHT. WHEN GEAR WAS EXTENDED, 3 GREEN AND NORMAL EXTENSION. ONCE AIRCRAFT WAS TAXIED TO GATE AND A/C POWER WAS SWITCHED TO EXTERNAL POWER, THE RED UNSAFE NOSE GEAR LIGHT CAME BACK AND REMAINED ON. REVIEW OF PSEU SHOWS NOSE GEAR LOCKED SENSOR D1-32 AT FAULT. CLEANED AND ADJUSTED SENSOR SYSTEM. GROUND CHECKS NORMAL. NO FAULTS ON POWER SWITCH OUT. (M)