As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE HELICOPTER WAS CONDUCTING AERIAL LIFT WORK THE PILOT NOTED THE ENGINE FUEL PUMP LIGHT CAME ON. HE RETURNED TO THE STAGING AREA AND LANDED UNEVENTFULLY. THROUGH TROUBLESHOOTING ON THE GROUND IT WAS DISCOVERED THAT ONE ELEMENT OF A DUAL ELEMENT PUMP FAILED. LIKELY CAUSE IS THE FAILURE OF THE INTERNAL DRIVE SPLINE, A KNOWN PROBLEM WITH -93 FUEL CONTROLS.