https://aviationweek.com/themes/custom/particle/dist/app-drupal/assets/awn-logo.svg
Christine Boynton
August 29, 2025
Credit: Southwest Airlines
Southwest Airlines has taken delivery of its first aircraft equipped with an Installed Physical Secondary Barrier (IPSB), a Boeing 737-8 that entered service on Aug. 29, from Phoenix to Salt Lake City. Though the Federal Aviation Administration (FAA) has granted a one-year exemption for their use…
Subscription Required
Southwest Deploying New Secondary Barriers, Evaluating Retrofits is published in Aviation Daily, an Aviation Week Intelligence Network (AWIN) Market Briefing and is included with your AWIN membership.
Already a member of AWIN or subscribe to Aviation Daily through your company? Login with your existing email and password
Not a member? Learn how to access the market intelligence and data you need to stay abreast of what’s happening in the air transport community.