What was found
ON FLIGHT 4133 (DTW TO BUF) RECEIVED A FLAPS FAIL AT 2 DEGREES ON APPROACH. AIRCRAFT LANDED SAFELY. PERFORMED TROUBLESHOOTING PER BOMBARDIER FIM REV 44 IAW AD 2009-06-12 PARAGRAPH (1A)(6)(I) PER AMOC DATED DECEMBER 04-2012 AND PA AD 27-052J. SEE NO ROUTINE CARD N38988 AND CONTINUATIONS CARDS FOR DETAILS OF WORK PERFORMED. MOST RECENT FECU FAULT CODES AS FOLLOWS FLIGHT LEG 6394 1) 5 1A 1)5 2B 1)C 1B 1)C 2B. REPLACED RIGHT INBOUND OUTER FLAP ACTUATOR IAW 27-50-00, INSPECTED FLAP DRIVE CABLES REPLACED LEFT AND RIGHT NR 3 FLEX CABLES. REPLACED LEFT NR 5 FLEX CABLES, IAW AMM 27-53-10. C/W LEFT AND RIGHT TORQUE CHECK NO DISCREPANCY'S NOTED.