One of P-47 Thunderbolts was restored for flight in 1972. Towards the year's end, the PRANG was sent with supplies for the victims of the 1972 Nicaragua earthquake. In 1974, the unit was sent to Honduras following the passing of Hurricane Fifi–Orlene. The following year, the PRANG was sent to respond to the 1976 Guatemala earthquake. In 1976, the 198th received an A-7D Corsair. In 1976, the unit's double task was modified. By 1977, the same year that the PRANG celebrated its 30th Anniversary, the 140th Radar Squadron was operating additional detachments at Ramey Air Force Base.