As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH RECEIVED FLAP FAIL CAUTION MESSAGE. FLAPS FAILED AT 30 DEGREES. MX WILL ATTEMPT THE RESET AS THE CREW WAS ON A TIGHT TAIL SWAP. ***AIRCRAFT REMOVED FROM SERVICE*** T/S IAW FIM SUPP 98-018I. FAULT LOGS SHOW FECU MOST LIKELY ISSUE. R/R FECU IAW AMM 27-51. OP CHECK GOOD. REMOVED PLACARD AND FROM MEL.