As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS DOWN FOR OTHER MAINTENANCE. WHEN THE FUEL TANK WAS REMOVED THE C729-14 PITOT LINE WAS FOUND WEARING INTO TRANSMISSION HOUSING. THE WEAR IS ON THE CURVE, AND IS APPROX. 0.045" TO 0.050" DEEP. THIS AREA HAD NOT BEEN ACCESSED SINCE THE AIRCRAFT WAS NEW. CONTACTING ROBINSON HELICOPTERS TO FIND OUT WHAT TYPE OF DAMAGE LIMITS ARE ALLOWED, AND WHAT FURTHER ACTION WILL BE REQUIRED.