As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IT WAS DISCOVERED DURING A ROUTINE CHECK SOOT AROUND THE ACCESS PANEL FURTHER INVESTIGATION DETERMINED THAT THE LEFT ENGINE RUDDER-BIAS BLEEDAIR LINE HAD A HOLE CAUSED BY PROLONGED CONTACT WITH CAMLOCK RECEPTACLE FOR PANEL 321AAL IN THE AFT BAGGAGE BAY. P/N 6614006-3 THE TUBE ASSY WAS REPLACED AND POSITIONED SO NOT TO INTERFERE WITH STRUCTURE. THE AIRCRAFT WAS RETURNED TO SERVICE.