As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6540 - DCA-LGA - HYDRAULIC SYSTEM 'A' FLUID DEPLETED TO ZERO. NORMAL LANDING. FOUND NR 1 ENGINE HYDRAULIC PUMP CASE DRAIN LINE FROM FIREWALL TO CASE DRAIN FILTER LEAKING. REPLACED LINE. REPLACED NR 1 AND NR 2 'A' SYSTEM CASE DRAIN FILTERS. (M)