As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A FIRE EXTINGUISHER WEIGHT CHECK, A FUEL LEAK WAS NOTICED IN THE WING ROOT. APU FUEL TUBE ASSY LT WAS FOUND CHAFING AGAINST THE PNEUMATIC LINE. THE CLAMP HOLDING THE TUBE WAS TIGHTENED TOO MUCH. THIS RESULTED IN A DISTORTION OF THE TUBE CAUSING A CHAFING AGAINST THE PNEUMATIC LINE.THE TUBE ASSY LT WAS REPLACED.AIRCRAFT RETURNED TO SERVICE.