As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LT OTBD ROLL SPOILER DEPLOYED APPROX 1/2 DEPLOYMENT DURING APPROACH. LINE MX TROUBLESHOOTING ASCERTAINED THAT THE LT OTBD SPOILER CONTROL VALVE TO BE DEFECTIVE. SPOILER CONTROL VALVE REPLACED. SYS TESTED IAW THE ACFT`S MM. ACFT RETURNED TO SERVICE WITHOUT FURTHER INCIDENT. (TC 20100219008)