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APB

Airspace

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AUTOMATED PROBLEM DETECTION BOUNDARY (APB)

The adapted distance beyond a facilities boundary defining the airspace within which EDST performs conflict detection.

Listed in the Pilot/Controller Glossary as a cross-reference to AUTOMATED PROBLEM DETECTION BOUNDARY (APB), whose text is shown above.

Source FAA Pilot/Controller Glossary · checked 2026-08-25

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