Atlas/ Glossary/ AGL Abbreviation AGL — above ground level. AGL above ground level. Source 14 CFR § 1.2 → Related — Abbreviation. ABEAM ABEAM ABORT ABORT — To terminate a preplanned aircraft maneuver AFM AFM — airplane flight manual ALS ALS — approach light system APU APU — auxiliary power unit ASR ASR — airport surveillance radar
