What was found
FLAP/SLAT HANDLE FAILED TO MOVE PAST 15/0 SETTING ON RETRACTION AND 20/20 SETTING ON LANDING. T/S SFCC FAULTED SUPPLY PSW. PARTS ID ARE FOR T/S, ADDITIONAL PARTS MAY BE REQUIRED. HIGH PRESS SW. REMOVED FLAP/SLAT HANDLE, CLEANED SPRING AND RE-ASSEMBLE. OPS CHECKED NORMAL REF:CMM 27-51-11, ACFT OK FOR SERVICE. MX FOUND FLAP/SLAT HANDLE ASSY VERY DIRTY AND DUSTY. INSPECTED SAME AND FOUND NO BROKEN COMPONENTS. CLEANED, DEGREASED, AND LUBED ASSY. OPERATION NORMAL NOW.