As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON LANDING GEAR ROLL WITH FLAPS AT 30 DEGREES, LEADING EDGE SLAT ASYMMETRY EICAS MESSAGE ILLUMINATED. FOUND NR 4 SLAT OUTBOARD AUXILIARY TRACK BOLT MISSING. ALSO MISSING ARE BEARING, WASHER ASSY (TARGET), NUT AND COTTER PIN. FOUND NR 4 LEADING EDGE PROX TARGET BROKEN. REPLACED PROX TARGET AND NR 4 BEARING ON TARGET, OPS CHECK GOOD. BITE ON FSEU GOOD.