As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN SEAT RECLINE MECHANISM HYDROLOK CYLINDER HAS A CRACK. THE CRACK EXTENDED FROM THE SPLINED FIBER NUT TO THE END OF THE CYLINDER. THE CIRCUMSTANCES UNDER WHICH THE CRACK OCCURRED ARE UNKNOWN, BUT SUBMITTER SUGGESTED THE CAUSE AS FATIGUE.