What was found
DIAGNOSTICS REPORTS NR 2 ENGINE TREND DATA CONTINUES TO SHOW A SHIFT IN DELTA CRUISE AND TAKEOFF MARGIN INDICATIVE OF EGT INDICATION ERRORS. ACCOMPLISHED T49.5 PROBE AND EGT SYS INSPECTION IAW MM 77-21-00-200-801-F00. ALL RESISTANCES AND INSULATION RESISTANCES WERE WITHIN LIMITS EXCEPT T49.5 PROBE S1 WHICH HAD LINE RESISTANCE BEYOND LIMITS. R & R NR 2 ENGINE T49.5 PROBE S1 IAW MM 77-21-01-000-801-F00/ MM 77-21-01-400-801-F00 AND PERFORMED EEC TEST IAW MM 73-21-00-700-804-F00. ALL TESTS PASS.