NG Models developed their 737-700 mould in very short order relative to the company's beginning. That stands in stark contrast to how long N618AS has been a part of the Alaska Airlines fleet. The airframe was delivered to AS in April of 2000. That means this workhorse is pushing 23 years of age. NG Models have gone full steam with their 2021 casting creating up 24 models as of January 2023. They've only made two Alaska 737-7s, this one and a cargo variant.