As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE FOUND BRACKET HOLDING LT OUTBOARD FLT SPOILER WAS CORRODED AND CRACKED ALLOWING THE PROX SWITCH TO MOVE AWAY FROM THE TARGET, GIVING A FALSE FLT SPOILER DEPLOY 'MESSAGE' ON ROLLOUT, CAUSING REJECTED TAKEOFF. AS PRECAUTIONARY MEASURE.