Atlas/ Glossary/ QNH Abbreviation QNH — - The barometric pressure as reported by a particular station. QNH - The barometric pressure as reported by a particular station. 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
