A dozen new, "Dash 123" proprotor gearboxes (PRGBs) for the Marine Corps/Navy/Air Force V-22 are coming off the line monthly, yet a legislator suggested on Tuesday that the rate needs to increase to avoid potential crashes of tiltrotors having older gearboxes with double-melt, weaker X-53 steel. The V-22s are now expected to resume restriction-free flight by December, 2027--a year later than the V-22 Joint Program Office projected in the spring of last year (Defense Daily, May 2, 2025). Such restrictions…
