Overview

• Relocation of the Service Life Modification effort begins in 2026 with St. Louis work scheduled to end in 2027.
• Boeing is studying transfers to its San Antonio, Texas, and Jacksonville, Florida, sites, with final site decisions still pending.
• SLM continues at existing locations, including Boeing’s San Antonio facility and the U.S. Navy’s Fleet Readiness Center Southwest in San Diego, with additional F/A-18 modification work in Jacksonville.
• Upgrades convert Block II Super Hornets to Block III and add about 4,000 flight hours, with the program projected to run into the mid-2030s.
• Boeing says affected employees will move to regional programs such as F-15EX, T-7A, MQ-25, JDAM, and the F-47 effort, while IAM leaders criticized the timing during ongoing strikes.