What was found
EN ROUTE FROM PHX TO ABQ FLIGHT CREW REPORTED RT WING NR 5 SLAT HANGING DOWN APPROXIMATELY 5 INCHES, AIRCRAFT RETURNED TO PHX. MAINTENANCE REMOVED AND REPLACED NR 5 LEADING EDGE SLAT ACTUATOR PER AWA TASK CARD R3M27020, OPERATIONAL AND LEAK CHECK WAS GOOD. FUNCTIONAL TEST OF LEADING EDGE SLAT ACTUATOR S/N 1886 CONFIRMED FAILURE OF UNIT FOR NOT RETRACTING IN THE INTERMEDIATE POSITION. DISASSEMBLY OF UNIT REVEALED ALL O-RING & BACK UP SEALS WORN BEYOND LIMITS, SPRING SEAT GOUGED & SCRATCHED, AND SPRING NR 9, FIG. 1102 FAILED TEST. REPLACED ALL DEFECTIVE PARTS AND BENCH CHECKED UNIT IAW CMM 27-80-11, REV. 49.