As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT LOST HYD FLUID FROM THE NR 2 SYS, ROOT CAUSE DISCOVERED TO BE A PARKING BRAKE ACCUMULATOR PRESSURE SWITCH (150GC) PN: 7G1052-1 SN:303, WHICH INTERNALLY FAILED AND LEAKED FLUID FROM A PRESSURE RELIEF VENT HOLE. A NEW SWITCH PN: 1203P0224 WAS INSTALLED AND SB SBF2000-0387 FOR PARKING BRAKE ACCUMULATOR SWITCH INSTALLATION IMPROVEMENT WAS COMPLIED WITH.