As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT WAS REPOSITIONING THE AIRCRAFT TO THE HOSPITAL FROM THE AIRPORT AND UPON REACHING APPROXIMATELY 300' AGL AFTER TAKEOFF HE RECEIVED A TAIL ROTOR CHIP WARNING INDICATION ON THE PFD. THE PILOT IMMEDIATELY RETURNED BACK TO THE AIRPORT. TWO MECHANICS INSPECTED THE TAIL ROTOR GEARBOX CHIP DETECTOR PER MM CHAPTER 65 AND DISCOVERED A SINGLE PARTICLE OF HAIR-LIKE FERROUS DEBRIS. NO FURTHER ACTION WAS REQUIRED BY THE MM.