What was found
AIRCRAFT MADE A RETURN LANDING, DUE TO GEAR DOORS WOULD NOT RETRACT AND CLOSE DURING LANDING GEAR RETRACTION. CORRECTIVE ACTION: EXTENDED AND RETRACTED GEAR DOOR, RECEIVED PROPER INDICATION FOR BOTH POSITIONS, VISUALLY INSPECTED ALL THREE GEAR AND SURROUNDING AREAS FOR DISCREPANCIES, NONE NOTED. COULD NOT DUPLICATE CONDITION.