As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF ROLL OUT APPROX 40 - 50 KTS THE MASTER CAUTION LIGHT FLASHED FOLLOWED BY THE HYD FLUID LOW ANNUNCIATOR. TAKEOFF WAS ABORTED. TAXI BACK WAS UNEVENTFUL. MX CHECKED THE HYD RESERVOIR FLUID LEVEL & THE ACCUMULATOR PRE-CHARGE WITH NO DEFECTS NOTED. INSPECTED & TESTED HYD LOW LEVEL CIRCUIT & PERFORMED GEAR SWINGS WITH NO DEFECTS NOTED. ACFT WAS RETURNED TO SERVICE.