As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
KAUS/KDAY - FLT 107 - IN-FLIGHT LOST ALL HYDRAULIC PRESSURE AND QUANTITY DOWN TO AUX MARK ON QUANTITY INDICATOR. MAINTENANCE FOUND SLOT CONTROL VALVE LEAKING. REMOVED AND REPLACED SLOT CONTROL VALVE IAW MM 27-80-4. HYDRAULIC SYSTEM SERVICED. LEAK AND OPS CHECK WAS GOOD.