Tie-in facility

{
  "id": "MLC-T-AVN-000999",
  "term": "Tie-in facility",
  "field": "Aviation and air traffic control",
  "definition": "The FSS primarily responsible for providing FSS services, including telecommunications services for landing facilities or navigational aids located within the boundaries of a flight plan area (FPA). Three-letter identifiers are assigned to each FSS/FPA and are annotated as tie-in facilities in the Chart Supplement and accessible through FAA Order JO 7350.9, Location Identifiers. Large consolidated FSS facilities may have many tie-in facilities or FSS sectors within one facility.",
  "see_also": [
    "Flight plan area (FPA)",
    "Flight service station (FSS)"
  ],
  "references": [
    "FAA Pilot/Controller Glossary"
  ],
  "url": "https://mlchart.com/terminology/aviation/tie-in-facility/"
}