What was found
WHILE PERFORMING T/C 78273000, FOUND NR 2 ENGINE FAULT 73-31372 UPPER EGT SECTORS READING HIGH. ACFT GROUNDED. ACCOMPLISHED FIM TASK 73-11-801. ALL PARAMETERS PRESENT AND IN RANGE. APPLICABLE SEGMENTS SHOW VARIATION OF 2 DEGREES. CHECK OF RECENT FAULTS AND FAULT HISTORY OF NR 2 ENGINE SHOWS FAULT ONLY LOGGED ON FLIGHT LEG 2 OF THE LAST TEN FLIGHT LEGS. ACCOMPLISHED T49.5 PROBE AND EGT SYSTEM INSPECTION. FOUND INSULATION RESISTANCE CHECK OF CJ10 HARNESS PINS 3 AND 4 OUT OF LIMITS. REPLACED CJ10 HARNESS REF MM 73-21-06. ACCOMPLISHED EEC TEST REFMM 73-21-00-700-804-F00. NO FAULTS NOTED. FADEC SYSTEM TEST PASS REF MM 73-21-00-700-802. CLEARED FAULTS EEC NR 2.