What was found
CLIMB 320 TO 340 AUTO THROTTLES ENGAGED NR3 ENG EXCEEDANCE HIGH EGT 1021, REQUIRED THROTTLE REDUCTION TO MAINTAIN EGT LIMITS. COMPLIED WITH EO 8-7720-7-5001. EGT PROBES ON NR 3 CHECKED GOOD. OPENED BORESCOPE PLUGS B3-1 AND B3-2 FOR QA ON NR 3 ENG. COMPLIED WITH BORESCOPE INSP ON NR 3 ENGINE IAW AMM PAGE 72-00-00-1 5 ON 1ST AND 2ND STAGE HPT BLADES NO DEFECTS NOTED. THE DFDR READOUT SUGGESTS THE EGT INDICATION SYS WAS FAULTY AND NEEDS TO BE FURTHER TROUBLESHOT. REMOVED AND REPLACED ALL 4 HARNESSES AND BOTH FWD AND AFT LEADS REF AMM 77-21-01-2 AND 77-21-02-2. LWR LT HARNESS NEEDS TO BE CHANGED AGAIN DUE TO FAULTY THREADS ON CONNECTOR. NEEDS ENGINE RUN OPS CHECK. FINISHED INSTALLING NR 3 ENG AFT EGT PROBE IAW AMM ATA 77-21-00-6. EGT PROBES CHECKED GOOD ON NR 3 ENG IAW AMM ATA 77-21-01-2. DID MPA TEST ON NR 3 ENG IAW JRH. EGT WITHIN PARAMETERS ON NR 3 ENG. CLOSED