As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE PERFORMING ENG INSP IN CONJUNCTION WITH THE SCHEDULED AIRFRAME PHASE CHECK, AME NOTED AN UNUSUAL MARK ON THE PROTRUDING BIT OF A FUEL LINE COUPLING SLEEVE AT THE REAR OF THE RT ENG FCU. THE LINE, FCU RETURN OR PURGE FUEL LINE, WAS REMOVED FOR CLOSER INSP UPON WHICH THE SLEEVE WAS FOUND TO BE CRACKED COMPLETELY THROUGH THE MATERIAL (STEEL SLEEVE). A NEW TUBE ASSY WAS INSTALLED. CAUSE OF THE SPLIT SLEEVE COULD NOT BE DETERMINED.