As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYD PRESSURE TOTAL LOSS OF HYD2 FLUID IN FLIGHT. DECLARED EMERGENCY TOWED TO GATE PERFORMED INSPECTION OF HYD SYSTEMS IAW AMM 05-50-23 FOUND OUTLET PORT OF BOOTSTRAP PRIORITY VALVE N2 HYD SYSTEM LEAKING, RAR DAMAGED ORING ON THE OUTLET PORT OF N2 HYD SYSTEM BOOTSTRAP PRIORITY VALVE IAW CMM 29-12-57, PER ENGINEERING PERFORMED PRECAUTIONARY ENGINE RUN DUE TO HIT ON AHEAD PRO IAW GHC OPC GOOD IAW AMM 29-11-20 NO LEAKS FOUND, NO OTHER DEFECTS NOTED AT THIS TIME.