What was found
L ENG BLEED OFF RTB KONT DUE TO PRESSUERIZATION/BLEED ISSUE. PERF AIR SUPPLY BITE PER FIM 36-20 FT 804.BITE FAULTED TEST FAILED WITH LIGHT TEST AND FAULTED MULTIPLE FAULTS ON BOTH L&R ENG. R&R SUPPLY BOX PER AMM 36-23-01. UPON FUTHER INSPECTION FOUND L ENG BLEED CARD NOT SEATED CORRECTLY R&R BLD CARD M859. PERF ENG IDLE RUN PER AMM 72-00-00 NO FAULTS FOUND NOTED L ENG BLD NORMAL.(CONT)LOG PG 1406455 R&RP; L ENG BLD CARD PER AMM 36-11-12. NO FAULTS NOTED. SYSTEM OPERATING NORMAL</P>)