What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
The helicopter was refueling with the engine operating at idle speed. The PIC was at the controls. The flight medic was pulling the refueling hose and grounding cable out to the aircraft to refuel. The grounding cable was attached to a retraction reel. The medic attempted to connect the grounging cable to the aircraft when he lost control of the grounding cable being under tention. The cable started to retract back to the reel when it came in contact with the right skid and was flung up into the main rotor blade. The cable made contact with one of the four blades causing minor reparible damage.
As the FAA filed it
THE HELICOPTER WAS REFUELING WITH THE ENGINE OPERATING AT IDLE SPEED. THE PIC WAS AT THE CONTROLS. THE FLIGHT MEDIC WAS PULLING THE REFUELING HOSE AND GROUNDING CABLE OUT TO THE AIRCRAFT TO REFUEL. THE GROUNDING CABLE WAS ATTACHED TO A RETRACTION REEL. THE MEDIC ATTEMPTED TO CONNECT THE GROUNGING CABLE TO THE AIRCRAFT WHEN HE LOST CONTROL OF THE GROUNDING CABLE BEING UNDER TENTION. THE CABLE STARTED TO RETRACT BACK TO THE REEL WHEN IT CAME IN CONTACT WITH THE RIGHT SKID AND WAS FLUNG UP INTO THE MAIN ROTOR BLADE. THE CABLE MADE CONTACT WITH ONE OF THE FOUR BLADES CAUSING MINOR REPARIBLE DAMAGE.