What was found
WHILE PERFORMING T/C 78273000, FOUND ON ENGINE 2 SHORT TIME FAULT CODE 73-30312, THE START SWITCH SIGNAL AND ARINC BUS DATA DISAGREE,FAULT LEG 0,1,2. GROUNDED - YES. (RESOLVED ON W/O: 1970161 TASKCARD: N/R-00001 ) VERIFIED FOUND FAULT, LOGGED ON ALL FLTS IN FAULT HISTORY. REF. MM 80-11-00, REMOVED/REPLACED #2 ENG. START SWITCH. 1 EA MIG 51A TAG INSTALLED/REMOVED. START SWITCH TEST/ ENG RUN GOOD REF. SAME M. THIS PLT DEFERRAL CLEARED. PLC C/N 16005592 RMVD. SEAMC ASHRAF NOT.