What was found
ETOPS - BTB ECAM AFTER ENGUNE START L WING LEAK. PERFORMED BMC1 AND 2 TEST. NO FAULTS DETECTED, FAULT CAME BACK FURTHER TROUBLESHOOTING REQUIRED.BMC1 NOT RESPONSIVE. REMOVED AND REPLACED BMC1 IAW AMM36-11-34-400-001, OPS CHECK GOOD. THE DUCT BETWEEN THE PRIMARY HEAT EXCHANGER AND THE COMPRESSOR IF THE AIR CYCLE MACHINE ATTACH HARDWARE FOUND DEFECTIVE REQUIRES REPLACEMENT. PER TSM 36-22-00-810-851-A. REMOVED AND REPLACED PACKING AND CLAMPS BETWEEN PRIMARY HEAT EXCHANGER AND THE AIR CYCLE MACHINE IAW AMMM 21-52-23-000-002-A. FOUND DUCT INLET COMPRESSOR FASTENERS LOOSE. TORQED DUCT INLET COMPRESSOR ALLEN SCREW TO SPECIFICATION, PERFORMED LEAK TEST TEST OK NO DEFECTS NOTED AT THIS TIME. A/C OK TO CONTINUE AMM21-52-23-400-002-A.