As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIR - AFTER TAKEOFF, THE CREW OBSERVED A TORQUE DROP TO 1300 LBS. THE CREW ELECTED AND AIR TURN BACK AND COMPLETED AN UNEVENTFUL LANDING. MAINTENANCE FOUND A CHAFED FUEL TUBE AT THE LEFT FUEL CONTROL UNIT. THE TUBE WAS REPLACED AND LEAK CHECKED. (M)