As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROXIMATELY 30 MINUTES BEFORE ARRIVING ATL, THE RIGHT HYD SYSTEM DECREASED TO 3 QUARTS AND ZERO HYD PRESS FOLLOWED BY APU SHUTDOWN. RAN THE EMERG PROCEDURES IAW POM. UPON GEAR EXTEND THE GEAR WENT DOWN BUT THE GEAR DOORS DID NOT COME BACK UP. REPLACED RUPTURED FLEX LINE AT CASE DRAIN FILTER.