As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE TRAILING EDGE FLAPS WENT ASYMMETRICAL WITH SPLIT BETWEEN POS 1 AND 2 WHILE EXTENDING FLAPS FOR LANDING ON APPROACH TO CLE. THE LEADING EDGE FLAPS/SLATS EXTENDED FULLY. AN EMERGENCY WAS DECLARED AND A GO-AROUND WAS PERFORMED. THE AIRCRAFT LANDED SAFELY PER QRH SPEEDS FOR FLAPS AT 1. MAINTENANCE FOUND THE NR 6 I/B FLAP O/B SKEW SENSOR INOPERATIVE. THE SENSOR WAS REMOVED AND REPLACED IAW MM 27-59-01. OPERATIONAL CHECKS WERE GOOD.