The FAA has issued special conditions for the Airbus Model A321neo ACF and A321neo XLR airplanes because they feature a unique seat design that current safety standards do not fully address. This design includes a single-occupant oblique seat with an airbag and a 3-point or pretensioner restraint system positioned at a 49-degree angle. The special conditions include new safety standards to ensure a level of safety similar to existing regulations. These conditions were prompted by feedback from Airbus and Boeing and apply immediately, even as the certification date approaches.
Simple Explanation
The FAA made new rules for special airplane seats that are different from normal ones because they sit at an angle and have special safety belts. These rules keep people just as safe as in regular seats.