 A phaseout of the A-7D at Myrtle Beach AFB started in the summer of 1974, with the A-7D's being transferred to Air National Guard units.These transfers continued until 1978, when the last A-7D was sent to the South Carolina ANG.In addition, the T-33's and VT-29 of the inactivated 4554th were retired and sent to AMARC in 1976.