▁References ▁ ▁External ▁links ▁▁▁▁▁▁ ▁Category : R ail way ▁stations ▁in ▁Bas el - Land schaft ▁Category : Sw iss ▁Federal ▁Rail ways ▁stations <0x0A> </s> ▁Capital ▁Airlines ▁Fl ight ▁ 2 0 ▁was ▁a ▁U . S . ▁scheduled ▁passenger ▁flight ▁from ▁Washington , ▁D . C . ▁to ▁Nor folk , ▁Virginia . ▁A ▁V ick ers ▁Vis count ▁flying ▁the ▁route ▁crash ed ▁into ▁a ▁farm ▁in ▁Charles ▁City ▁County , ▁Virginia , ▁on ▁January ▁ 1 8 , ▁ 1 9 6 0 . ▁The ▁accident ▁was ▁the ▁fourth ▁fatal ▁crash ▁involving ▁a ▁Capital ▁Vis count ▁in ▁less ▁than ▁two ▁years ; ▁the ▁first ▁three ▁were ▁Capital ▁Airlines ▁Fl ight ▁ 6 7 ▁( A pril ▁ 1 9 5 8 ), ▁Capital ▁Airlines ▁Fl ight ▁ 3 0 0 ▁( May ▁ 1 9 5 8 ) ▁and ▁Capital ▁Airlines ▁Fl ight ▁ 7 5 ▁( May ▁ 1 9 5 9 ). ▁The ▁plane ▁was ▁cru ising ▁at ▁an ▁alt itude ▁of ▁ 8 , 0 0 0 ▁feet ▁when ▁it ▁encountered ▁ic ing . ▁This ▁caused ▁two ▁engines ▁to ▁fail . ▁As ▁the ▁craft ▁desc ended , ▁the ▁other ▁two ▁engines ▁also ▁failed , ▁causing ▁the ▁prop ellers ▁to ▁aut of e ather . ▁The ▁crew ▁tried ▁and ▁failed ▁to ▁restart ▁the ▁engines , ▁and ▁were ▁unable ▁to ▁un fe ather ▁the ▁prop ellers ▁normally ; ▁they ▁then ▁put ▁the ▁plane ▁into ▁a ▁d ive ▁in ▁an ▁attempt ▁to ▁force ▁the ▁prop ellers ▁from ▁their