What was found
AIRCRAFT WAS GROUNDED. ON SHORT FINAL INTO SNA, THE LEFT ENGINE HYDRAULIC PUMP LIGHT FLICKERED ON AND OFF. HYDRAULIC SYSTEM "A" QUANTITY READ 25% RF. HYDRAULIC SYSTEM "A" PRESSURE REMAINED AT 3030 PSI. THE LANDING AT SNA WAS ABORTED AND THE AIRCRAFT DIVERTED TO LAX WHERE AN EMERGENCY LANDING WAS DECLARED. THE AIRCRAFT LANDED WITHOUT INCIDENT AND TAXIED TO THE GATE UNDER ITS OWN POWER. FOUND RIGHT MAIN GEAR FRANGIBLE FITTING ASSEMBLY LEAKING. REPLACED FITTING ASSEMBLY PACKING PER 32-32-52. OPERATIONS AND LEAK CHECK NORMAL.