As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER TAKEOFF AND LADING SELECTED UP - UNSAFE GEAR INDICATION LIGHT CAME ON (RED NOSE GEAR INDICATION AND YELLOW LIGHT IN HANDLE), LDG SET, DOWN AND AFTER 90 SEC. SAFE DOWN LIGHT CAME ON, AIRCRAFT RETURNED TO BASE. NLG SOLENOID SEQUENCE VALVE REPLACED AND GEAR SWING CARRIED OUT (25X) SYSTEM OPS CHECKED NORMAL.