scope:

This specification sets forth the requirements for modification kits for the AN/TPX-42A(V) and associated radar display equipments, Indicator Group OD-69T, Numerics Generation Conversion Equipment (NGCE) FA-8953, Bright Radar Indicator Tower Equipment (BRITE), Types FA-7847, FA-8178, FA-8959, and Indicator Groups OD-56, OD-57, OD-58/T, OD-129/T and IP-1085 that will incorporate the Low Altitude Alerting System (LAAS) into this equipment to give the system the capability of alerting the Air Traffic Controller, on a code selective basis, when aircraft under his control descend below minimum altitudes.