Efek Flare Operation pada Keselamatan Penerbangan: Penelitian Berdasarkan Analisa Data Quick Access Recorder (QAR) Data Armada B737-800NG Garuda Indonesia dan Pengaplikasiannya dalam Pencegahan Insiden Pendaratan Pesawat = Effects of Flare Operation on Landing Safety: A Study Based on Analysis of Quick Access Recorder (QAR) Data of Fleet B737-800NG Garuda Indonesia and Its Applications in Preventing Landing Incidents