As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAPS FAIL CAUTION ON APPROACH, FLAPS FAILED AT 20 DEGREES. CREW PREFORMED GO-AROUND AND COMPLIED WITH THE QRH. ONCE ON THE GROUND AND AT THE GATE FLAP RESET PROCEDURE WAS FOLLOWED, IAW AWAC SUPPLEMENT 98- 18I BOX 12. FLAPS RESET. AIRCRAFT REMOVED FROM SERVICE. REF WORKORDER 301426 AND MX WORK CARD 15, FOUND LT BPSU DOES NOT HOLD TOLERANCE. R & R BPSU, IAW AMM 27-51-10. REMOVED PLACARD AND REMOVED FROM MEL.