As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH TO MDW; FLAPS WOULD NOT EXTEND; COMPLETED ALTERNATE FLAP EXTENSION; DIVERTED TO ORD<[01] PERFORMED FSEU BITE FOUND FAULT 27-52260 {RT T/E FLAP SENSOR}CHECKED TRANSMITTER D229 AND AFT RT SPAR D40034 FOR CORROSION NONE NOTED R&R RT T/E FLAP POSITION TRANSMITTER IAW AMM 27-58-01 OPS CK GOOD