What was found
WHILE ACCOMP T/C 78273000, FOUND NR 2 ENGINE WITH ECONOMIC FAULT 77-20862, BOTTOM LT EGT SIGNAL, T495S3, OUT OF RANGE. ACFT GROUNDED. REMOVED ALL EGT CONNECTIONS FROM EEC TO EGT SWITCHED. CLEANED AND INSP. FOUND CORE HARNESS INST. FOR SWITCH 3 & 4 SHORTED TO GROUND. REPLACED HARNESS WITH NEW ONE. RECONNECTED ALL CONNECTIONS FROM EGT SWITCHES TO EEC. RAN ENGINE FOR 5 MIN AND VERIFIED NO MORE EGT FAULT FOR ENG. NR 2 ACCOMPLISH EEC TEST, TEST PASS NO EEC FAULT. ACCOMPLISH ACTUATORS TEST, TEST PASS NO ACTUATORS FAULTS, REF MM 77-21-01-400-801, 73-21-06-400-803, & 77-21-00-140-801.