As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L/E SLAT ASYM MSG DISPLAYED AFTER FLAPS EXTENDED TO 30 ON APPROACH. FOUND NR 1 LEFT SLAT OUTBOARD TARGET MISSING FOR SENSOR 276. REPLACED TARGET WITH NEW BOLT AND BEARING. RAN FLAPS/SLATS SEVERAL TIMES WITH NO EICAS MESSAGES OR FAULTS ON PROX BOX.