What was found
AIRCRAFT OSCILLATES UP & DOWN WHEN USING AUTOPILOT. AIRCRAFT FLIES NORMALLY WHEN AUTOPILOT SELECTED OFF. FLT 5652 REPLACED FCP IAW AMM & REPLACED BOOTH FCC CARDS IAW AMM. PN1 822-0044-001, SN1 ON 414, SN1 OFF 18G8Y, PN2 822-1308-320, SN2 ON 21H1N, SN2 OFF 3J30L, PN3 822-1308-320, SN3 ON 3G33T & SN3 OFF 5YYX.