What was found
FLAPS FAIL AT 20 ON FINAL. PERFORMED TROUBLESHOOTING PER BOMBARDIER FIM REV 39, IAW AD 2009-06-12 PARAGRAPH (H)(6)(I), AMOC DATED MARCH27 ,2009AND PA AD 27-052G. FOUND CODES 9 2B, 21 C1, 19 C2, 25 BC. REMOVED AND REPLACED FLAP HANDLE IAW AMM 27-51-01, OP CHECKS GOOD. THIS CLEARS DM #63611, OK FOR SERVICE.