As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON REINSTALLATION OF FUEL LINES IN FUEL VALVE COMPARTMENT TUBE ASSY WAS TORQUED AND FERRULE WAS FOUND TO BE CRACKED. TUBE ASSY WAS SUSPECTED TO BE CRACKED ON REMOVAL BUT NO LEAKS DETECTED. LINE REMOVED FROM SERVICE. RECOMMEND BETTER VISUAL INSPECTION OF ALUMINUM LINES AND PROPER TORQUE PROCEDURES.