As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN RETRACTING SPOILERS DURING APPROACH, RECEIVED OTBD SPOILERONS AND OTBD FLT SPOILERS CAUTION MSG. C/W QRH CHECKLIST. INTERROGATED MDC, FOUND LT OTBD MFS PCU, PCU JAM MESSAGE. PERFORMED SPOST1 REST. PERFORMED OPS CK IAW ETN CR-27-093. OPS CK GOOD.