you are likely to find Rain in/at/on Air. you are likely to find Plane in/at/on Air. you are likely to find Cabin in/at/on Plane. Cabin is a synonym of Cell. 
Inevitable is a synonym of Fatal. 
Rain --AtLocation--> Air <--AtLocation-- Plane <--AtLocation-- Cabin <--Synonym--> Cell 
Inevitable <--Synonym--> Fatal 