What was found
DFW - FLT 2361- AFTER TAKEOFF DFW, WHEN LANDING GEAR LEVER SELECTED UP, LANDING GEAR DOORS WOULD NOT SEQUENCE AND LANDING GEAR DID NOT RETRACT. AIRCRAFT RETURNED TO DFW AND LANDED WITHOUT INCIDENT. PLACED LANDING GEAR DOOR BYPASS HANDLE IN CLOSED POSITION. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)