As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMBING PAST 10000 FT EICAS ADVISORY HYD 3 LO QTY W/RESERVOIR AT 18% AND NOMAL PRESSURE.QTY DROPPED CONTINOUSLY TO 0 AT FL 280 STILL 3000 PSI.TAXIING BACK TO GATE EICAS CAUTION HYD 3 LO PRESSURE. COMPLIED W/QRH PROCEDURE.NO EMRGENCY DECLARED."TRANSFERRED TO NRWC 082-DFW-00475"-C/A-INFO NOTED BY MTX.