- icing ▁was ▁completed ▁at ▁ 1 3 : 4 6 . ▁ ▁At ▁ 1 3 : 5 1 , ▁Fl ight ▁ 1 7 1 3 ▁contact ed ▁the ▁clear ance ▁delivery ▁controller ▁for ▁permission ▁to ▁" ta xi ▁from ▁the ▁ice ▁pad ." ▁ ▁The ▁clear ance ▁delivery ▁controller , ▁bel ieving ▁that ▁Fl ight ▁ 1 7 1 3 ▁was ▁still ▁at ▁the ▁gate ▁and ▁request ing ▁to ▁proceed ▁to ▁de - icing , ▁instruct ed ▁the ▁flight ▁to ▁switch ▁to ▁ground ▁controller ▁frequency . ▁ ▁At ▁ 1 4 : 0 5 , ▁Fl ight ▁ 1 7 1 3 ▁was ▁l ined ▁up ▁on ▁the ▁number ▁one ▁position ▁at ▁the ▁north ▁end ▁of ▁the ▁run way , ▁and ▁the ▁crew ▁was ▁ready ▁for ▁take ▁off . ▁Not ▁kept ▁properly ▁informed ▁of ▁Fl ight ▁ 1 7 1 3 ’ s ▁position , ▁the ▁air ▁traffic ▁controllers ▁tried ▁repeatedly ▁to ▁have ▁a ▁different ▁plane ▁take off , ▁leaving ▁Fl ight ▁ 1 7 1 3 ▁standing ▁in ▁the ▁falling ▁snow ▁for ▁several ▁minutes . ▁ ▁Fl ight ▁ 1 7 1 3 ▁then ▁not ified ▁air ▁traffic ▁controllers ▁that ▁they ▁were ▁holding ▁at ▁the ▁start ▁of ▁the ▁run way ▁and ▁await ing ▁take off ▁instructions . ▁ ▁Fl ight ▁ 1 7 1 3 ▁was ▁cleared ▁for ▁take off ▁at ▁ 1 4 : 1 4 . ▁As ▁the ▁DC - 9 ▁was ▁taking ▁off , ▁the ▁pilot ▁in ▁control ▁over - rot ated ; ▁the ▁DC -