As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD T650/26 EN ROUTE PHX-ORD RT HYDRAULIC PRESSURE LIGHT AND RT REV ACCUMULATOR LIGHT ON WHEN EXTENDING FLAPS AND SLATS. LANDED ORD WITHOUT INCIDENT. INSPECTION FOUND RT AND LEFT HYDRAULIC LEVELS WITHIN LIMITS. REPLACED RIGHT HAND FLUID QUANTITY TRANSMITTER AND INDICATING SYSTEM. SYSTEM GROUND CHECKED NORMAL OPERATION. CLOSED