📢 This glossary was created to be a dynamic version of the Pilot/Controller Glossary published by the FAA. Because the FAA now maintains its own dynamic version of the Pilot/Controller Glossary, this version is no longer updated.
| Term: |
UNFROZEN |
|---|---|
| Meaning: | The Scheduled Time of Arrival (STA) tags, which are still being rescheduled by the time based flow management (TBFM) calculations. The aircraft will remain unfrozen until the time the corresponding estimated time of arrival (ETA) tag passes the preset freeze horizon for that aircraft's stream class. At this point the automatic rescheduling will stop, and the STA becomes "frozen." |
| Previous Term: | UNDER THE HOOD |
| Next Term: | UNICOM |