What was found
DURING CLIMB, NR 2 EGT (POINTER/DIGITAL) WERE FLUCTUATING +/- 50C. ALL OTHER ENGINE PARMS NML. NO YAW NOTED. PULL NR 2 THROTTLE BACK TO ABOUT 10 PERCENT, NO CHANGE. HIGHEST EGT WAS APPROX 860C. AFTER ABOUT 10 MINS EGT STAB AT ABOUT 800C AND NML REST OF FLIGHT. FLUX STARTED AGAIN AFTER LNDG. ON GND FLUX WAS ABOUT +/ - 10C. AGAIN, REMOVED AND REPLACED NR 2 ENG EGT IND PRECAUT REF AMM 77-21-21-4. RAN ENG PER JRH AT VARIOUS LOW POWER SETTINGS FOR APPROX 15 MINS. NO FLUCTUATION NOTED. FOUND WIRE HARNESS J3 FWD OF J BOX THAT UPPER AND LOWER T/C HARNESSES CONNECT HAS VISUAL DMG AND WHEN SHOOK GAVE FLUX TO EGT IND. REMOVED AND REPLACED FWD THERMOCOUPLE CABLE IAW MM 77-21-02-4-04.