As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT 27000 FT, THE LEFT HYD PRESS LOW ANNUC CAME ON, DROPPED TO ZERO PSI AND QUANT INCREASED LEFT REV WOULD NOT STOW AFTER LANDING. FOUND LT SYSTEM RESERVOIR ACCUMMULATOR FULL OF AIR BLED AIR FROM RESERVOIR. OPS CHK GOOD QTY, NO LEAKS NOTED. CYCLED FLT CONTROLS PRESS NORMAL. NO LEAKS NOTED PRESS NML. NO HISTORY.