What was found
FT # 280, WHILE BEGINNING TO START DOWN ON THE ARRIVAL AT ABOUT APPROX 22000 FEET WE FELT AN UNCOMMANDED RUDDER INPUT CAUSING AIRPLANE TO BANK TO THE LEFT. RUDDER TRIM INDICATED L 1.4 AND IT TOOK APPROX 3 TO 5 MINS FOR IT TO GET BACK TO ZERO. SPEED WAS 280 KTS INDICATED. REPEAT WRITE-UP; PERFORMED DETAILED INSPECTION OF THE RUDDER MECHANICAL CONTROL-LINKAGE IN TEH VERTICAL STABILIZER IAW AMM CH 27-29-00. R & R RUDDER TRIM ACTUATOR (10CC) REF LOGPAGE # 2431080 #2. ADJUSTED RUDDER SERVO WORK ON REF LOG # 2431082 #2. OPS CK GOOD. NO FAULTS NOTED. A/C OK FOR SERVICE.