As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYDRAULIC Y RSVR OVERHEAT ECAM DISPLAYED DURING CLIMB 12 MINUTES AFTER TAKE OFF. ECAM PROCEDURES ACCOMPLISHED HYDRYLIC FLUID QUANTITY ABNORMALLY HIGH RETURNED TO NORMAL RANGE ONCE SYSTEM COOLED QUANTITY INDICATED NORMAL RANGE DURING PREFLIGHT AND POST. RAN YELLOW HYDRAULIC SYSTEM CYCLING COMPONENTS, MESSAGE CLEARED AND OPS CHECKS GOOD IAW TSM 29-13-00-810-802-A AND AMM 29-24-00-860-001-A.