Https://answers.microsoft.com/en-us/officeinsider/forum/all/how-to-find-tsa-precheck-number-on-american/3e67ae28-f49f-40f8-b3e9-633fbc1720c0 https://answers.microsoft.com/en-us/officeinsider/forum/all/how-to-find-tsa-precheck-number-on-american/3e67ae28-f49f-40f8-b3e9-633fbc1720c0