What was found
IN FLIGHT ON FLIGHT 3613 (DTW - GRB), RECEIVED FLAPS FAILED AT 30 DEGREES WHEN SELECTING FLAPS FROM 30 DEGREES TO 45 DEGRESS AT 165 KTS APPROXIMATELY 55 MINUTES INTO THE FLIGHT. PERFORMED TROUBLESHOOTING PER BOMBARDIER FIM REV 43 IAW AD2009-06-12, PARAGRAPH (H)(6)(I), AMOC DATED APRIL 19, 2012, AND PA AD27-052H. FLAPS OPC GOOD IAW AMM 27-50-00. THIS CLEARS DM 75681, PLACARD REMOVED.