What was found
AFTER TAKEOFF, FOLLOWING GEAR RETRACTION. NOSE GEAR DOOR LIGHT (RED), ILLUMINATED, EXTENDED THE GEAR AND RETURNED FOR NORMAL LANDING, NORMAL INDICATIONS UPON GEAR EXTENSION. (3 GREEN NO RED). JACKED AIRCRAFT. GAINED ACCESS TO NOSE LANDING GEAR PROXIMITY SENSORS, CLEANED AND CHECKED SENSORS. NO DEFECTS NOTED. PERFORMED GEAR 5 TIMES WITH NO DEFECTS IAW MM CHAPTER 07-100 AND 32-600. GEAR RETRACTION OPERATIONAL CHECKS SATISFACTORY.