What was found
UPON CONFIG, A/C ROLLED LEFT REQ 3/4 DEFLECTION TO RIGHT TO HOLD A/C LEVEL. A/C WAS CONTROLLABLE TO TOUCHDOWN. ON POST FLIGHT WALK AROUND, DISCOVERED THAT THE MIDDLE OF THE LEFT OUTBD FLAP VANE HAD DEPARTED THE A/C. REMOVED RT INBD FLAP SPRING CARTRIGDE. REMOVED AND REPLACED LT OB FLAP ASSY AND PERFORMED ADJUSTMENT/TEST IAW UAL DC10-30 MM 27-50-02. INSTALLED INBOARD AND OUTBOARD FLAP VANES ON LT OUTER FLAP, REF UAL M/M 27-50-03. INSTALLED LT OUTBOARD FLAP VANE CARTRIDGE, REF UAL M/M 27-51-04. REMOVED AND REPLACED NR 5 SPOILER PER UAL M/M27-60-01. REMOVED AND REPLACED NR 4 SPOILER PANEL PER M/M 27-60-01.