, ▁Ly ft , ▁and ▁U ber ▁also ▁provide ▁service . ▁ ▁Acc idents ▁August ▁ 2 4 , ▁ 1 9 8 4 ▁- ▁W ings ▁West ▁Airlines ▁/ ▁Fl ight ▁ 6 2 8 ▁M ida ir ▁collision . ▁Short ly ▁after ▁depart ing ▁the ▁San ▁Luis ▁Ob is po ▁County ▁Regional ▁Airport ▁on ▁a ▁comm uter ▁flight ▁to ▁San ▁Francisco ▁International ▁Airport , ▁a ▁W ings ▁West ▁Airlines ▁tw in - engine ▁Be ech craft ▁C 9 9 ▁( N 6 3 9 9 U ) ▁coll ided ▁head - on ▁with ▁a ▁private ▁Rock well ▁Commander ▁ 1 1 2 TC ▁aircraft ▁( N 1 1 2 SM ) ▁that ▁was ▁desc ending ▁for ▁a ▁landing ▁at ▁the ▁same ▁air port . ▁August ▁ 1 , ▁ 2 0 0 5 ▁- ▁A ▁Pi per ▁Ch ero kee ▁fle w ▁into ▁the ▁side ▁of ▁Is lay ▁Hill ▁shortly ▁after ▁take off ▁in ▁dense ▁fog . ▁The ▁newly ▁lic ensed ▁pilot ▁was ▁not ▁instrument ▁r ated ▁and ▁was ▁killed ▁in ▁the ▁crash . ▁A ▁fire ▁on ▁top ▁of ▁the ▁hill ▁burn ed ▁ 1 / 8 th ▁of ▁an ▁a cre ▁before ▁being ▁contained . ▁The ▁ 7 0 0 ▁foot ▁tall ▁Is lay ▁Hill ▁lies ▁ 1 ▁mile ▁east ▁of ▁the ▁air port ▁boundary , ▁however ▁a ▁red ▁warning ▁be acon ▁was ▁removed ▁many ▁years ▁before ▁the ▁accident ▁and ▁has ▁never ▁been ▁replaced . ▁January ▁ 8 , ▁ 2 0 0 9 ▁- ▁A ▁Be ech craft ▁Bon