Definition
Back-up emergency communications equipment (BUECE) is secondary radio or communications gear that air traffic facilities use to contact aircraft when their primary communications systems fail or are taken out of service. It provides a continuity of voice contact between controllers and pilots during outages, maintenance, or equipment failures.
Plain English
Spare radio gear that controllers switch to if their main radios go down, so they can still talk to aircraft.
Context Anchor
Seen in FAA acronym lists, emergency planning, aircraft equipment discussions, and procedures for lost or failed communications.
Why Pilots Care
Maintains the ability to reach air traffic control and other aircraft when normal radios are lost, directly affecting flight safety.
Intuition Check
Back-up does not mean unimportant or optional in an emergency. Here it means the alternate equipment you may depend on if the normal equipment fails.
Example Sentence 1
A NOTAM advised that the approach control was operating on BUECE due to a primary transmitter failure.
Example Sentence 2
During the preflight inspection the instructor confirmed that the BUECE batteries were fully charged.