What was found
DURING CLIMB NUMBER ONE T6 INDICATOR (BOTH ANALOG & DIGITAL) FLUCTUATED CONTINUOUSLY +/- 200 DEGREES. OTHER ENGINE INDICATIONS NORMAL. PROBLEM CONTINUED FOR 20-25 MINUTES, THEN T6 INDICATIONS STABILIZED DURING DESCENT, AFTER POWER REDUCTION. REPLACED WIRES FROM T6 PROBE HARNESS TO TERMINAL BLOCK. WIRE WAS LOOSE IN TERMINAL CONNECTION. RAN ENGINE, T6 INDICATION NORMAL, BOTH ANALOG AND DIGITAL. NO FLUCTUATIONS AS PREVIOUSLY INDICATED. OPS CHECKS GOOD.