As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FLIGHT SPOILER HANDLE WOULD NOT REMAIN IN STOWED DETENT. FOUND (RT OB) FLIGHT SPOILER PCU WAS RESTRICTED INTERNALLY, POSSIBLE HYDRAULIC LOCK BY FLUID BYPASSING TO WRONG SIDE OF PISTON INTERNALLY. THIS WOULD NOT ALLOW THE RIGHT FLIGHT SPOILER TO STOW COMPLETELY.