As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 5 - AFTER TAKEOFF, UNABLE TO RETRACT LANDING GEAR. AIRCRAFT RETURNED TO DFW AND LANDED WITHOUT INCIDENT. FOUND TRIM CYLINDER FUSE IN BYPASS POSITION. RESET FUSE AND FOUND LEAK IN SUPPLY LINE. REPLACED SUPPLY LINE, SERVICED AND BLED SYSTEM. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)