As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HOU - FLT NR 3618 - AFTER TAKEOFF LEFT ENGINE TORQUE INDICATIONS DROPPED TO 60 PERCENT CREW ELECTED TO RETURN TO HOU. CLEANED ELECTRICAL CONNECTOR ON LEFT ENGINE T 1.8 SENSOR. GROUND PERFORMANCE RUNS WERE SATISFACTORY. AIRCRAFT RETURNED TO SERVICE. (M)