What was found
AUTO PILOT DOES NOT CATCH ALTITUDE, BOTH SIDES. REPLACED ELEVATOR SVO-65 IAW MM 27-10-05 AND TESTED AUTOPILOT WITH PITOT STATIC TESTER AND NAV 401L, OPS CHECK GOOD IAW MM 22-10-00. PLACARDS REMOVED. P/N ON 622-5734-002, S/N ON 451, S/N OFF 3856.