As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ENGINE RUNS FOR TROUBLESHOOTING, NR 2 ENGINE POWER LAGGED. SELECTED NR 2 ECU MODE ON MANUAL. NR 2 POWER IS NOW SATISFACTORY WITH A KNOB SPLIT BETWEEN 1.5 AND 3.0 THROUGHOUT RUN. FOUND NR 2, T1.8 PROBE SHORTED TO GROUND. R & R T1.8 PROBE IAW MM 72-01-60. GROUND RAN IAW PIEDMONT MANUAL. OPS CHECKED GOOD OK FOR SERVICE AT THIS TIME.