As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAPS FAILED AT 20 DEGREES DURING APPROACH INTO FSM. REMOVED AND REPLACED RT BPSU IAW AMM 27-51-10 COMPLIED WITH PER SP 607 AND AMM 27-51-10 WORK SATISFACTORY. PERFORMED RIGGING OF SYSTEM. OPS CHECK GOOD ON FLAP SYSTEM AT THIS TIME. (B)