VMFA-531 'The Grey Ghosts'. This squadron was de-commissioned in 1992 while flying F/A-18 Hornets. El Toro was de-commissioned in 1999. This aircraft was built as a F4H-1 and redesignated to a F-4B in 1962. It was later converted to a F-4N. SOC at NAS North Island on 27 May 1983.