Hawker Siddeley Harrier AV-8As to the AV-8C configuration—the work focused mainly on extending useful service lives and improving VTOL performance. The AV-8C and the remaining AV-8A Harriers were retired by 1987. These were replaced by the Harrier II, designated as the AV-8B, which was introduced into service in 1985. The performance of the Harrier in USMC service led to calls for the United States Air Force to procure Harrier IIs in addition to the USMC's own plans, but these never resulted in Air Force orders. Since the late 1990s, the AV-8B has been slated to be replaced by the F-35B variant of the
McDonnell Douglas AV-8B Harrier II of funds for a replacement aircraft. Following the decommissioning of "Príncipe de Asturias" in February 2013, the sole naval platform from which Spanish Harrier IIs can operate is the amphibious assault ship . During its service with the USMC, the Harrier has had an accident rate three times that of the Corps' F/A-18s. , approximately 110 aircraft have been damaged beyond repair since the type entered service in 1985, the first accident occurring in March that year. The "Los Angeles Times" reported in 2003 that the Harrier family had the highest rate of major accidents among military aircraft in service