As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER DEPARTURE FROM AIRPORT THE PILOT OBSERVED ABNORMAL/FLUCTUATING TORQUE AND EGT INDICATIONS FOR LT ENGINE. THE AIRCRAFT RETURNED TO BASE. WIRING CONNECTOR PLUG FOR SRL COMPUTER WAS CLEANED AND SRL COMPUTER WAS RE-CALIBRATED PER DATA SHEET, RUN-UP AND TEST FLIGHT CARRIED OUT AND AIRCRAFT RETURNED TO SERVICE.