As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MISSED APPROACH - GO AROUND - / LE SLAT DISAGREE MESSAGE ILLUMINATED WHEN FLAP 1 SELECTED. FOLLOW QRH PROCEDURES USING ALTERNATE FLAP SELECTOR. LEFT FLAPS AT 20 ON TAXIING IN. REMOVED AND REPLACED NR 8 AND NR 9 L/E SLATS ROTARY ACTUATORS. PERFORMED OPS CHECK AS PER MM 27-81-18-424-019. REF 4457784 AND 42 75631 FOR WORK PERFORMED.