Heads up, award travelers! It looks like the Barclays AAdvantage Aviator Red Mastercard is being discontinued for new sign-ups as of September 30th. Word on the street (via a now-deleted Reddit post citing internal American Airlines communications) is that Barclays is pulling the plug on this card. Why should you care? Well, right now, you can snag a sign-up bonus of 50,000 AAdvantage miles with no annual fee. Previously, some people were able to call in and get offered a boosted 70,000-mile bonus. That phone method is no longer working, but the standard 50,000 bonus is still a great way to pad your AAdvantage account for future flights. If you've been eyeing this card, now's the time to jump on it before it disappears! This is a limited-time opportunity to grab a bunch of miles without paying an annual fee. Don't miss out on this easy way to boost your AAdvantage balance!