RTR 12A: Abnormal/Emergency Procedures(Notes)


Aircraft Call Signs – ICAO / Transmission / IATA

ICAO Call SignTransmitted As (RT Phraseology)IATA / Reg.
AIC 2837Air India two eight three sevenAI 2837
AIC 531Air India five tree oneAI 531
VT-AKCFirst transmission (full): Victor Tango Alpha Kilo Charlie Subsequent: Victor Kilo CharlieVT-AKC
IGO 2124I Fly two one two four6E 2124
IGO 2013I Fly two zero one tree6E 2013
SEJ 9818Spice Jet nine eight one eightSG 9818
SEJ 269Spice Jet two six ninerSG 269
VU-AUMFirst transmission (full): Victor Uniform Alpha Uniform Mike Subsequent: Victor Uniform Mike
AKJ 1146Akasa one one four sixQP 1146
AKJ 1411Akasa ONE FOUR ONE ONEQP 1411
BDA 403Blue Dart four zero treeBZ 403
AXB 1163Express India one one six treeIX 1163

Notes (Aviation Context)
  • “Tree” = 3, “Niner” = 9 (ICAO standard pronunciation).
  • Registration call signs (e.g., VT-AKC, VU-AUM) follow:
    • First call: Full phonetic
    • Subsequent calls: Abbreviated form
  • Airline telephony designators:
    • AIC → Air India
    • IGO → IndiGo
    • SEJ → SpiceJet
    • AKJ → Akasa Air
    • BDA → Blue Dart
    • AXB → Air India Express

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