As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REROUTE, LEFT HYD QTY DECREASING FROM 0.95 BLK OUT TO 0.69. SEE PREVIOUS WRITEUPS 478839 & 478841. REMOVED AND REPLACED ELECTROHYDRAULIC SERVO VALVE ON RT YAW DAMP SERVO IAW MM 22-21-03-2. OPS CKS AND LEAK CKS GOOD. SERVICED LEFT HYD SYS TO FULL.