As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, L HYD QTY AND PRESS DECREASING. FOLLOWED CHECKLIST, RETURNED TO ATL. REMOVED PRESS LINE FLEX HOSE AT FILTER MODULE. INSTALLED NEW CASE DRAIN FILTER RETURN FLEX LINE REDUCER AND PACKING. NO LEAKS NOTED DURING ENGINE RUN.