Landing
Flare, touchdown and rollout. Overruns, hard landings, runway excursions and loss of directional control live here.
Landing accidents are frequently survivable but expensive, and they concentrate on runway condition, touchdown point, braking action and crosswind. Runway excursions are the single most common accident type in commercial aviation worldwide.
Related terms
Approach
From joining the approach to just before touchdown. Together with landing it accounts for a disproportionate share of accidents relative to time spent.
Weather
Windshear, thunderstorms, turbulence, icing or low visibility were causal. The finding is usually less about the weather than about the decision to fly into it.