What was found
(CAN) FLAP FAIL CAUTION MESSAGE WHEN FLAP SELECTED TO 30 DEGREES FOR LANDING (FLAP LOCK OUT). REPLACED NR 4 RT FLAP ACTUATOR AND NR 1 & 2 LT FLAP ACTUATORS ALSO REPLACED RT NR 4 FLEX SHAFT CABLE AND NR 1 & 5 LT FLEX SHAFT. WINTERIZATION OF THE SYSTEM ALSO COMPLETED. RIGGING AND OPERATION CHECK CARRIED OUT. SYSTEM FOUND SERVICEABLE. L/H ACTUATOR P/N 854D100-11 LT FLEX SHAFT NR 4 P/N 857SD100-7 RT FLEX SHAFT NR 1 P/N 857SD100-15 R/H FLEX SHAFT NR 5 P/N 857SD100-9