As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT LOST ALL NR 1 HYD QTY DURING DECENT. QUICK DISCONNECT UNION FITTING ON THE EDP FAILED AND CRACKED ALLOWING ALL OF THE FLUID IN THE NR 1 SYSTEM TO EVACUATE. REMOVED & REPLACED QD ON EDP 1 IAW AMM 29-11-16-000/400-801-A01-PSA. ALSO REMOVED & REPLACED NR 1 CASE DRAIN FILTERS IAW AMM 29-11-40-000/400-801-A01 OPS AND LEAK CHECKED GOOD AT THIS TIME.