Pilot/Controller Glossary
DELAY INDEFINITE (REASON IF KNOWN) EXPECT FURTHER CLEARANCE (TIME)
This reproduces published FAA reference text for study. It does not replace the current official FAA publication or regulation.
Used by ATC to inform a pilot when an accurate estimate of the delay time and the reason for the delay cannot immediately be determined; e.g., a disabled aircraft on the runway, terminal or center area saturation, weather below landing minimums, etc.
Retrieved from ecfr.gov on July 18, 2026.