As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKE OFF EICAS MESSAGE LEADING EDGE SLAT DISAGREE. LEADING EDGE SLAT DISPLAYED BETWEEN UP AND 1. AC PERFORMED ATB AND LANDED , MAINTENANCE GROUNDED AC AND TROUBLESHOT REPLACING FSEU IAW B767 AMM 27-51-01. LEADING EDGE SLATS AND FLAPS CHECK GOOD AS PER AMM 27-51-01 AIRCRAFT REMAINS ETOPS 180 + CAT IIIB. REURNED AC TO SERVICE .