As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A POST FLIGHT INSPECTION OF THE TAIL BOOM DECK NEAR FRAME STATION 9000 HYD FLUID WAS NOTICED UNDER THE TAIL ROTOR HYD RETURN PIPE. UNABLE TO DETERMINE THE SOURCE OF LEAK SO A GND POWER HYD TEST UNIT WAS HOOKED TO THE LT HAND SYS. AS SOON AS PRESS WAS APPLIED THE SOURCE OF THE LEAK WAS IDENTIFIED AS A PIN HOLE SIZED CRACK AT THE TOP OF THE TUBE ARCH AT APPROX 8 DROPS A MINUTE.