| Answer | Crossword Clue |
|---|---|
| SST | Plane with a machmeter: Abbr. |
| ETA | When a plane is expected (Abbr.) |
| ETA | When a plane is expected: Abbr. |
| ETA | When a plane is due: Abbr. |
| ETA | When a plane should get in (Abbr.) |
| ETA | When a plane should get in: Abbr. |
| ETA | When a plane is due in: Abbr. |
| ETA | When a plane is expected to land (Abbr.) |
| ETD | When a plane is due to take off: Abbr. |
