As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOST ALL LT SYS HYD QTY. THE FLIGHT DECLARED AN EMER INBD, LANDED WITH .18 QTY IN LT SYS. PRESS NEVER WENT TO 0 PSI. ACFT WAS REMOVED FROM SERVICE. R & R O RING FROM LT DPI FROM EDP CASE DRAIN PRESS FILTER MODULE IAW AMM 29-11-14. OPERATIONALLY CHECKED GOOD. NO LEAKS NOTED.