What was found
AFTER TAKEOFF, WHEN THE LANDING GEAR WAS RETRACTED, THE CREW OBSERVED AMBER WARNING LIGHTS FOR BOTH RIGHT AND LEFT MAIN GEAR DOORS AND A RED UNSAFE INDICATION FOR THE NOSE GEAR. THE CREW THEN LOWERED THE GEAR AND LEFT IT IN THE DOWN POSITION FOR THE REMAINDER OF THE FLIGHT. THE FLIGHT THEN RETURNED TO THE FIELD AND DECLARED AN EMERGENCY WHERE CRASH RESCUE WAS DISPATCHED. THE AIRCRAFT THEN LANDED WITHOUT INCIDENT AND TAXIED NORMALLY. MAINTENANCE JACKED THE AIRCRAFT AND CYCLED THE LANDING GEAR WITHOUT DISCREPANCIES. THE PSEU WAS CHANGED AND SYSTEM WAS CYCLED SEVERAL MORE TIMES TO VERIFY SYSTEM OPERATION. NO FURTHER FAULTS WERE FOUND AND AIRCRAFT WAS THEN RELEASED FOR SERVICE.