0 0 ASDAR
1 1 ASDAR(ACARS ALSO AVAILABLE BUT NOT OPERATIVE)
2 2 ASDAR(ACARS ALSO AVAILABLE AND OPERATIVE)
3 3 ACARS
4 4 ACARS(ASDAR ALSO AVALILABLE BUT NOT OPERATIVE)
5 5 ACARS(ASDAR ALSO AVAILABLE AND OPERATIVE)
15 15 MISSING VALUE
