What was found
ON TAKEOFF, NR 4 ENGINE EGT WENT TO 929 DEGREES C AT 91 PERCENT N, OAT ON ATIS 35 DEGREES C, 29 DEGREES C FROM TOWER 120 KIAS, TARGET N1 91.8. REMOVED AND REPLACED NR 4 ENG EGT INDICATOR, CHECKED PMC, CHECKED INLETS AND EXHAUST FOR DAMAGE, CHECKED VSV'S AND VBV FOR DAMAGE, NONE NOTE. CHECKED EGT THERM/COUPLE HARNESS, CHECKED N2 ALTERNATOR FOR OPERATION, PERFORMED PMC TEST AND CLEANED ALL CONNECTIONS. OPS CHECKED TURBINE CLEARANCE CONTROL VALVE. CHECKED PNEUMATIC SYSTEM FOR LEAKS. NO DEFECTS NOTED. COULD NOT DUPLICATE.