Description

According to Flight Safety Foundation (FSF) Approach-and-landing Accident Reduction (ALAR) Briefing Note 5.1 — Approach Hazards Overview, "Few air transport accidents occur on calm sunny days; risk increases during flight over hilly terrain with reduced visibility, adverse winds, contaminated runways and limited approach aids."

"The FSF ALAR Task Force, in an analysis of 76 approach and landing accidents and serious incidents, including controlled-flight-into-terrain (CFIT) accidents, worldwide in 1984 through 1997, found that: