What was found
ON DESCENT TO IAD AIRFRAME BUFFET AT 290 KNOTS 270FL FOLLOWED QRH AT 14,000 250 KTS NO BUFFET FELT. FLAPS 15 DEGREES LANDING ACCOMP FOR WING LEVEL NEED 1/2 UNIT OF TRIM RUDDER. CONTROL WHEEL SHOWED 35 DEGREES RIGHT WITH NO TRIM. OPS CHECK SPOILERS ALL DEPLOY EVENLY AND NO EVIDENCE OF FLUID BYPASS. WHILE TURNING CONTROL COLUMN WHEEL INSPECTED CABLES AND QUARDRUM: NO OBVIOUS DEFECTS FOUND. LOWERED FLAPS AND VISUALLY INSPECTED ROLLERS AND TRACK: ALL LOOKED OK. PHYSICALLY LIFTED ON FLAPS AND FOUND LEFT OUTBOARD AFT FLAP EXCESSIVE PLAY. ADJUSTED DEAD WEIGHT ROLLER ECCENTRIC AND OUTBOARD ROLLERS ECCENTRIC IAW MM 27-51-012-4. OPERATED FLAPS AND OPS CHECKED GOOD.