As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE FL350, RECEIVED A YELLOW SYS HYD ECAM YELLOW SYS LOW QTY, LOW PRESSURE. YELLOW SYS QTY JUST ABOVE THE RED DOT. ACCOMPLISHED ECAM AND QRH PROCEDURES. INSTALLED FLEX LINE IAW AMM 20-23-11, & INSTALLED LACING TAPE OTBD SIDE OF LINE IAW AMM 20-23-14. REPLENISHED YELLOW SYSTEM FLUID AND PERFORMED LEAK CHECK WITH NO FAULTS IAW 12-12-29-00. OPS CHECKED THE FLEX LINE & COMPONENTS WITH AN ENGINE RUN IAW JRH. ACFT OK FOR SERVICE.