As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SLAT DRIVE EICAS MSG SHOWS 27-22321. TRIED TO TEST (SLAT PRIMARY FCM L )SYSTEM TEST. PASSED. ALL SLATS FUNCTION WAS NORMAL. NO FOUND FAULT ABOUT THIS PROBLEM DURING TEST AND AFTER DONE.ALSO CHECKED ACTUAL SLAT NR 5 ASSY AND THE SKEW HARNESS ( WIRE ) ALL ROUTE. NO FOUND DAMEGE. THE CONDITION WAS OK. REF FIM 27-80-F1-29A-421A-A,AMM 05-41-05-22B-311A-A.