As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, FLAPS WERE RETRACTED AND GOT FLAP DISAGREEMENT. APPLIED QRH PROCEDURE TWICE WITH NO SUCCESS. RETURNED TO FAT. FLAPS RETRACTED NORMALLY ON THE GROUND. REMOVED AND REPLACED LEFT INBOARD FLAP ROLLERS IAW MM 27-50-12. NO OTHER DISCREPANCIES NOTED. OPS CHECKS GOOD.