As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 739 FROM DFW TO BYH, AFTER TAKE OFF, THE OUTBOARD FLAPS REMAINED AT 15 DEGREES. EMERGENCY WAS DECLARED. AIRCRAFT RETURNED TO DFW AND LANDED WITHOUT ANY FURTHER DIFFICULTIES. REMOVED AND REPLACED OUTBOARD FLAP DRIVE HYDRAULIC MOTOR. OPS CKD GOOD ON GROUND. LEAK CK OK. AIRCRAFT RETURNED TO SERVICE.