As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT MLG ACTUATOR CYLINDER LOWER END CRACKED COMPLETELY AND FAILED DURING PREFLIGHT OPERATIONS POST HMV. CAUSED COMPLETE LOSS OF C-SYSTEM HYD FLUID. CYLINDER APPEARS TO NOT HAVE BEEN IDENTIFIED AS BEING MODIFIED PER SB. REPLACED CYLINDER.