As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO FIELD AT LAX DUE TO FLOATING SPOILER PROBLEM. *S/D* CAUSE OF SPOILER EICAS MESSAGE WAS NOT FOUND AND COULD NOT BE DUPLICATED DURING TROUBLESHOOTING. SPOILER FLOAT WAS NOT VERIFIED. ALL OPERATIONAL AND VISUAL CHECKS WERE GOOD. AIRCRAFT RETURNED TO SERVICE.