As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ECAM 'RSVR LO LEVEL', GREEN PUMPS TURNED OFF. QTY. APPEARED NORMAL. APPROACH AND LANDING UNEVENTFUL. NOTE: OCCURRED DURING CRUISE FLT. @ FL300. HYD PRESSURE NORMALINSPECTED A/C FOR EXTERNAL HYDRAULIC LEAKAGE W/REF TO AMM 29-00-00. FOLLOWED TSM 29-31-00. INSPECTED INDICATOR, INDICATOR CANON PLU, TRANSMITTER AND TRANSMITTER WIRING. W/REF TO TSM R/R GREEN SYSTEM HYDRAULIC TRANSMITTER QTY W/REF TO AMM 29-31-11 OPS CHECKS GOOD AMM 29-31-00.