As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAPS FAILED CAUTION MESSAGE, COMPLIED WITH PA AD27-052N. SNOW & SLUSH WERE CONTRIBUTING FACTOR TO FLAP FAIL EVENT. PERFORMED TROUBLESHOOTING IAW FIM REV 45, IAW AD 2009-06-12 PARAGRAPH H 6 I. COMPLETED CLEANUP OF CONTAMINATION OF SAND & OTHER CONTAMINATION IN FLAP WELLS, LUBRICATED LT & RT FLAP ACTUATORS IAW CRJ200 AMM 12-20-27. PERFORMED OPERATIONAL CHECKS IAW AMM 27-54-00, OPERATION TESTS CHECKED GOOD. OK FOR SERVICE, THIS CLEARS DM 3662 PLACARD REMOVED.