As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE BORESCOPE INSPECTION OF THE INBOARD FLAP INTERNAL STRUCTURE PER AMM 57-51-00-290-801, STEP F.(3), CORROSION WAS IDENTIFIED INSIDE THE AFT SPIGOT TUBE INNER BORE ON THE LEFT-HAND INBD FLAP.REFERENCE BOMBARDIER REPAIR ENGINEERING ORDER 700-57-51-535