What was found
ETOPS SIGNIFICANT SYSTEM - BTB ECAM APU BLEED LEAK AFTER ENGINE START FOLLOWED BY APU LEAK FED BY ENGINES, INTERMITTENT FAULT LIGHT ON ENG 1 BLEED SWITCH. // INSPECTED APU COMPARTMENT, CARGO BAY PANEL AFT COMPARTMENT AND THE COMPARTMENT DUCTS FOR ANY BLEED LEAK. REMOVED AND INSPECTED APU CHECK VALVE FOR CONDITION PER AMM 36-12-51-200-0001A, CONDITION OK. BMC-1 REMOVED AND REPLACED PER AMM 36-11-34. BITE TEST BAD, CONDITION SAME. REPLACED BULKHEAD CONNECTOR & SENSING ELEMENT (16HF) OPS CHECK GOOD PER AMM 36-22-00-710-802-A. OK FOR SERVICE. FOUND APB FEED THRU CONNECTOR FOR APU BLEED LEAK DETECTION LOOP HAS LOW INSULATION TO GROUND (600 OHMS). CONNECTOR IS BETWEEN ELEMENT 16HF & 17HF. REMOVED AND INSTALLED SENSING ELEMENT 16HF PER AMM 36-22-17. OPS CHECK GOOD PER AMM 36-22-00-710-802-A. OK FOR SERVICE.