As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT WAS CANCELLED AFTER TAKEOFF DUE TO TORQUE GAUGE READING ABOUT 20 LOW ON BOTH ENGINES. N1 AND TOT OF BOTH ENGINES SEEMED TO BE CORRECT DURING 6 MINUTE FLIGHT. MAINTENANCE CLEANED CONNECTORS TO BOTH TORQUE TRANSMITTERS. SUSPECT WATER HAD GOTTEN INTO VENT HOLES ON TRANSMITTERS DURING WASHING OF TRANSMISSION DECK.