What was found
PHX - ABORTED TAKEOFF - FLT 0567 - ON APPLICATION OF TOGA POWER FOR BLEEDS OFF TAKEOFF AT PHX EN ROUTE FOR MCO, RECEIVED ECAM MESSAGES FOR ENGINE NR 1 BLEED LEAK FOLLOWED BY APU BLEED FAULT & AIR PACK NR 1 FAULT. REJECTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE PERFORMED BLEED MONITOR COMPUTER BITE TEST THAT FAULTED NR 1 ENGINE PYLON LOOP. FOLLOWED TSM 36-22-15 AND REPLACED NR 1 PYLON OVERHEAT SENSING ELEMENT (1HF1). REPLACED APU LOAD CONTROL VALVE IAW AMM 49-51-51, APU BLEED FAULT STILL EXISTS, REPLACED APU BLEED SWITCH IN FLIGHT DECK AND SYSTEM OPERATION CHECK WAS NORMAL. PART NAME; SWITCH, MFG; ECE L'EQUIPEMENT, P/N; 2FCC2FEA0B01263, CONDITION; LOOSE