As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE CONDUCTING THE PHASE 3, 600 HR INSPECTION MAINTENANCE DESCOVERED THAT THE AIR CONDITIONING PLUMBING HOSES, PART NR 300-0872-1 AND 300-0873-1, IPC REF 21-52-00-02 ITEM VIEW D FOUND TO BE TO CHAFING ON THE AIR CONDITIONING BLOWER UNIT.