As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER CREW REPORTED A LOW OIL PRESSURE ON LT ENGINE. THE MAINTENANCE PERSONNEL FOUND AFTER INVESTIGATION THAT THE OIL COOLER TUBE ASSEMBLY WAS PUNCTURED/CHAFED. ONE OF THE HOLDING CLAMP`S PROTECTIVE MATERIAL WAS COMPLETELY CHAFED (INSIDE PORTION) AND WITH TIME, CHAFED THROUGH THE TUBE. THE TUBE ASSEMBLY WAS REPLACED AND AIRCRAFT WAS RETURNED TO SERVICE.