What was found
WITH POWER LEVERS EVEN THRUST, ACFT REQUIRED 1.5 DEGREES OR MORE, LEFT RUDDER TRIM. ACFT WANTED TO ROLL RT AT LEFT 1.5 DEG RUDDER TRIM, SLIP INDICATOR SHOWED ACFT REQUIRING MORE LEFT RUDDER TRIM. NO SPOILER FLOAT NOTED. ACFT SEEMS TO WANT TO ROLL TO RIGHT. AIRSPEED= 250, 300, 320, ALL SAME INDICATIONS, ALT= 10,000, 18,000, 25,000, ALL SAME INDICATIONS. ADJUSTMENTED THE LT WING DIFFERENTIAL AND DROOP UNIT IAW AMM 27-10-00-05, STEP 2.