As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RETURNED TO FIELD WHEN RIGHT HAND LEADING EDGE DEVICES FAILED TO RETRACT AFTER TAKEOFF. PRIOR TO THE ABOVE INCIDENT, AIRCRAFT HAD TOTAL B SYS HYDRAULIC LOSS, CYCLED ALL CONTROLS THROUGH SEVERAL CYCLES TO ELIMINATE ANY AIR IN SYS. NO PHYSICAL OR INDICATION PROBLEMS NOTED IN SLAT OR FLAP SYSTEM. SYSTEM OPERATES NORMAL.