As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE LT OTBD SPOILER ACTUATOR HAD BEEN REPLACED. DURING A MAINTENANCE FUNCTIONAL CHECK AFTER INSTALLATION, THE LT OTBD SPOILER ACTUATOR MADE A VERY LOUD NOISE DURING EXTENSION AND WOULD NOT RETRACT. VISUAL INSPECTION REVEALED THAT THE ACTUATOR HSG HAD FRACTURED. SPOILER ACTUATOR TO BE REPLACED.