As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH, TRIED TO EXTEND FLAPS TO 15. HANDLE WOULD NOT GO PAST SLATS EXTEND DETENT. DID A SLATS ONLY LANDING. NO ABNORMAL INDICATION ON ECAM. EMERGENCY DECLARED. R & R COMMAND SENSOR UNIT REF MM 27-51-17-04. SLATS AND FLAPS OPS CHECKED GOOD.