What was found
ENG 1 EIU FAULT REF LOG 5264438 CLEAR IN ERROR. PER TSM 73-00-00-810-823 WIRE CK BETWEEN EEC AND EIU. NO TIME TO TS AIRCRAFT NEED TO GO TO BASE. POST REPORT IS ATTACHED WORKED PERFORMED TSM 73-25-00-810-839-A REPLACED EIU 1 IAW AMM73-25-34-400-041 ,OPS CHK AMM73-25-34-710-042 STILL NO HELP MESSAGE EIU 1 ,NO CFDIU DATA MESSAGE POST REPORT EIU2 IS ALSO FAULTING RETURNED THE ORIGINAL EIU 1 NEED FATHER T/S . R&R CFDIU. INSTALL TEST GOOD. PERFORMED EIU 1 OP TEST. TEST PASSED. NO ACTIVE MSGS. REF AMM 31-32-34-400-001-A & TSM 73-25-00-810-839-A & IPC 31-32-34-01. REPLACED APU ECB AS PRECAUTIONARY IN REF TO AMM 49-61-34/401. OPS TEST PASSED.