As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING GROUND RUNS FOR UNRELATED MAINTENANCE WORK, IT WAS NOTED THAT THE LT OTBD SPOILER WAS NOT MOVING. MAINTENANCE DISCOVERED THAT THE LT OTBD ACTUATOR HOUSING HAD FRACTURED AT THE END CAP RESULTING IN A LEAK. THE ACTUATOR WAS REPLACED IAW THE AMM, PN A44700-009, SN 0332.