As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LEFT O/B ROLL SPOILER NOT DEPLOYING/ STAYED DOWN WITH CONTROL INPUT. MAINTENANCE DISCOVERED SUBSTANTIAL HYD LEAK FROM THE LEFT O/B ROLL SPOILER ACTUATOR. THE ACCESS COVER FOR THE INTERNAL PISTON ON THE ACTUATOR ITSELF HAD BROKEN OFF ALLOWING FLUID TO BYPASS THE PISTON AND LEAK OUT. ACTUATOR REPLACED.