What was found
(CAN) ON JULY 12TH 2019, A DASH 8 Q400, WAS ON FINAL APPROACH WHEN THE CREW REPORTED A FLAP DRIVE` WARNING LIGHT ON THE CWP. THE AIRCRAFT CONTINUED THE APPROACH. MAINTENANCE REPLACED THE LEFT AND RIGHT LOWER FLAP ROLLER BEARINGS FROM THE LEFT INBOARD FLAP IN ACCORDANCE WITH AMM 27-54-01. THE AIRCRAFT HAS RETURNED TO SERVICE. THIS WAS A REPEAT EVENT WHICH WAS FOUND NFF THE FIRST TIME, ON JULY 9TH 2019, A DASH 8 Q400, GOT THE FLAP DRIVE CAUTION LIGHT WHEN SELECTING FLAPS 35 DEGREES. MAINTENANCE INSPECTED THE FLAPS AND PERFORMED AN OPERATIONAL TEST WITH NO FAULTS FOUND IAW AMM 27-52-00, REV. 65. AIRCRAFT RETURNED TO SERVICE. ++X++ (TC# 20190715015)