As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB, RECEIVED YELLOW HYDRAULIC RESERVOIR OVERHEAT WARNING. SUPPLEMENTAL DATA UPDATE FOUND YELLOW SYSTEM OVER SERVICED. REMOVED EXCESS HYDRAULIC FLUID AND ALSO REPLACED REMOTE HYDRAULIC QUANTITY INDICATOR FOR A STUCK NEEDLE TO PREVENT RECURRENCE.