As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB - HYD B ENG 1 PUMP LO PR HYD B SYS LOW PR ECAM.// BLUE HYD INDICATED 1/4 FULL AT BLOCK IN. CREW REPORTED ENG 1 EDP ISOLATED AFTER MSG. NO CAVITATION TO ENG 1 EDP NOTED, ALL DPI CHECKED OK. FOUND PACKING ON BLUE HP MANIFOLD LEAKING. REPLACED PACKING PER AMM 29-12-53. SVC BLUE HYD TO FULL PER AMM 12-12-29 OPS+ LEAK CHK OK.