ATPL: The 'O' followed by the letters 'KABC' indicate:
Domanda 317, Radio Navigation - ATPL - Airline Transport Pilot license
| An off-route VOR/DME |
| A designated alternate airport |
| The destination airport |
| 107 NM |
| An off-route VOR/DME |
| A designated alternate airport |
| The destination airport |
| 107 NM |
