 | Preliminary Communication (PRECOM) Search |
| Fails to arrive 30 mins. of ETA |
|
| Extended Communication (EXCOM) Search |
| Fails to land after 5 mins. of clearance |
| Impaired operating efficiency |
| Unlawful interference |
|
| No info after Excom search |
| Impaired operating efficiency, forced landing likely |
| Reasonable certainty; about to or have made a forced landing |
|
