As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS FLYING AN EXTERNAL LOAD OPERATION WHEN THE PILOT NOTICED THE RED LOW HYDRAULIC WARNING IND LIGHT WAS ILLUMINATED. THE PILOT WAS ABLE TO SAFELY SET LOAD ON THE GROUND AND LAND BACK AT THE HELI-PAD. UPON VISUAL INSPECTION OF THE HYDRAULIC PUMP , THE DRIVE SPLINES WERE CHEWED UP AND THE BEARINGS INSIDE WERE ROUGH/ BINDING WHEN TURNED BY HAND.