As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A**DIVERSION** DURING APPROACH TO MMX UPON SELECTING FLAPS 25, EICAS ALERT "LEADING EDGE SLAT ASYMETRY" DISPLAYED.FSEU: T/S IAW FIM 27-51-00-815-809 REV 129.00. FOUND LAST LEG FAULT 27-810343 LE INBD SLAT (REF BLOCK 73), NEXT STEP GO TO FIM 27-81-00/101 FIG 106 FOUND NO SENSOR FAULTS. PSEU BITE PROC IAW FIM 32-09-00-815-803-001 REV 129.00 PERF. NO FAULTS FOUND. T/S IAW FIM 27-81-00-815-809 REV 129.00 PERFORMED.