Hello Scifience,
AAdvantage® Number: 00XXX00

This month, the Transportation Security Administration (TSA) is making changes to the TSA Pre✓® Trusted Traveler Program that will impact which travelers receive expedited screening. If you're not already a member of one of the Trusted Traveler programs like Global Entry or the TSA Pre✓® Application Program, you will probably see a decline in how often you receive expedited screening, even if you've previously "opted-in" through a frequent flyer program.

The best way to increase your chances of receiving TSA Pre✓® on a regular basis is to register for a Trusted Traveler Program with the Department of Homeland Security at dhs.gov/tt. Once you receive your Known Traveler Number (KTN) from TSA, be sure you update your AAdvantage profile.

To add your KTN to your AAdvantage profile:
Login to your account on aa.com and select My Account from the AAdvantage menu
Within My Account, go to the Information and Password tab
Add your Customs and Border Protection 9-digit PASS ID to your secure traveler information
For more information on TSA Pre✓®, visit tsa.gov/tsa-precheck.