Narrative Summary

I sell refurbished automotive parts. I shipped a 35-pound alternator via FedEx Ground. I packed it in a brand-new corrugated box, immobilizing the heavy part with expanding foam. During transit, the box suffered a massive blowout on the bottom seam, and the alternator was severely dented from hitting the pavement. FedEx denied my claim under Rule 17, stating that "heavy items require double-walled packaging" and blaming my single-wall box for bursting under the weight.

The Resolution Strategy

Claims adjusters rely on visual rules of thumb—like assuming all heavy items need double-wall cardboard—rather than checking the actual structural rating of the materials used.

The resolution strategy utilized the Authori shipping appeal generator to focus directly on the Edge Crush Test (ECT) ratings inherent to ISTA 3A packaging guidelines. The appeal letter pointed directly to the Box Maker's Certificate (BMC) printed on the bottom flap of the carton.

The appeal detailed that the box carried an ECT rating of 44 lbs/in, which is structurally certified to carry up to 40 pounds in a single-wall configuration under standard transit conditions. By mathematically proving the box was officially rated for the exact weight of the alternator, the appeal legally invalidated the "double-wall" requirement excuse. It successfully shifted the blame to a high-velocity drop by a FedEx handler that exceeded the ECT limits. FedEx approved the claim and paid for the damage.