Gridiron Air (RZN, Fort Worth Alliance) completed its Part 121 supplemental air carrier certification on October 30, 2024, allowing it to proffer its two B777-200ERs to the charter market.

“Our B777-200ER fleet will be a market disruptor. With four distinct cabin zones, including 28 lie-flat seats and seating for up
to 288 passengers in unmatched comfort, upgraded connectivity and in-flight entertainment, we are excited for our guests to experience the new standard in large aircraft charter,” president and CEO Paul Kirby said….

Source: ch aviation
Read more: US's Gridiron Air completes Part 121 certification