What was found
DURING DEPARTURE, THE GEAR RETRACTION AMBER CAS NOSE GEAR MISCOMPARE DISPLAYED, THEN WITHIN 5 SECONDS, THE NOSE GEAR RETRACTED WITH NORMAL INDICATIONS. AS FLIGHT CONTINUED AFTER ACCELERATING TO 250 KIAS NOSE GEAR EXTENDED WITH NO CAS BUT GEAR INDICATION SHOWED NOSE GEAR DOWN, THEN RETRACTED AGAIN. JACKED AIRCRAFT, CYCLED GEAR NUMEROUS TIMES NO DEFECTS NOTED COULD NOT DUPLICATE DISCREPANCY. VERIFIED NLG UPLOCK SWITCH ADJUSTMENT IS GOOD IAW MM 32-32-00-5. REMOVED AND REPLACED NOSE GEAR UPLOCK SWITCH IAW MM 32-32-10. COMPLIED WITH UPLOCK SWITCH ADJUSTMENT IAW MM 32-32-00 AND SAFETIED SWITCH AS REQUIRED. COMPLIED WITH NOSE GEAR STRUT UPPER AND LOWER CHAMBER NITROGEN SERVICE IAW MM 12-20-15. CHECKED NOSE STRUT EXTENSION. EXTENSION CHECKED GOOD. COMPLIED WITH GEAR SWINGS AND LANDING GEAR OPERATIONAL CHECK IAW MM 32-00-00. OPS CHECKED GOOD. DOWN JACKED AIRCRAFT. VERIFIED NOSE STRUT SERVICE, STRUT EXTENSION CHECK, UPLOCK SWITCH INSTALL AND ADJUSTMENT. CHECKED FOR PROPER GROUND AT PIN 4 AND PIN 1 OF CONNECTOR PG006, ALL CHECKED GOOD. VERIFIED LANDING GEAR OPS CHECKS. VERIFIED WORK PERFORMED.