As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN FUEL FEEL LINE FROM PYLON TO ENGINE WAS FOUND COLLAPSED MORE THAN 50 PERCENT. THIS CONDITION IS DIFFICULT TO DETECT DUE TO THE FIRE SLEEVE COVERING THE HOSE. SUBMITTER SUGGESTED TWISTING OF THE LINE DURING TIGHTENING OF THE B-NUTS AT INSTALLATION. CARE SHOULD BE USED TO PREVENT TWISTING DURING TIGHTENING BY USING WRENCH TO BACK UP LINE.