Atlas/ Glossary/ OUT Abbreviation OUT — The conversation is ended and no response is expected. OUT The conversation is ended and no response is expected. Source FAA Pilot/Controller Glossary → Related — Abbreviation. ABEAM ABEAM ABORT ABORT — To terminate a preplanned aircraft maneuver AFM AFM — airplane flight manual AGL AGL — above ground level ALS ALS — approach light system APU APU — auxiliary power unit
