As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN HYDRAULICS: HYD PRESS LOW RIGHT AMBER CASS. COMPLIED WITH QRH CHECKLIST. ON INITIAL DESCENT TO DESTINATION HYD VOLUME LOW CASS ILLUMINATED. RAN QRH CHECKLIST. LANDED FLAPS TWO BLEW DOWN GEAR AND USED EMERGENCY BRAKE AND STEERING. CORRECTIVE ACTION: REPLACED HYDRAULIC RESERVOIR. OPS CHECK GOOD. IAW CESSNA 680A AMM 29-10-05