As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE EN ROUTE, DIVERTED DUE TO NOSE GEAR WOULD NOT COME UP ON RETRACT. CAME BACK DOWN & SHOWED GREEN LIGHT WITH GEAR HANDLE UP. MAIN GEAR HAD TWO INTERMITTENTLY ONE RED, UNSAFE LIGHTS. TOWER & CREW DECLARED EMER. REMOVED NLG RETRACT & GEAR UPLOCK ACTUATORS, RESEALED & REINSTALLED BOTH. RECURRENCE NEXT FLIGHT, NOSE GEAR UNLOCKED AT 4000' 250 KNOTS AFTER 50 MINS OF FLIGHT TIME. ACFT IN MX NOW.