▁headquarters ▁of ▁the ▁regional ▁air line ▁Express J et . ▁ ▁Before ▁the ▁mer ger , ▁Atlantic ▁S out heast ▁Airlines ▁head qu arter ed ▁in ▁the ▁hang ar , ▁then ▁named ▁the ▁A - T ech ▁Center . ▁In ▁December ▁ 2 0 0 7 , ▁the ▁air line ▁announced ▁it ▁was ▁moving ▁its ▁headquarters ▁into ▁the ▁facility , ▁previously ▁named ▁the ▁" N orth ▁H ang ar ." ▁The ▁ ▁hang ar ▁includes ▁ ▁of ▁hang ar ▁b ays ▁for ▁aircraft ▁maintenance . ▁It ▁has ▁ ▁of ▁adjacent ▁land ▁and ▁ 1 , 4 0 0 ▁par king ▁spaces ▁for ▁employees . ▁The ▁air line ▁planned ▁to ▁re loc ate ▁ 1 0 0 ▁employees ▁from ▁Ma con ▁to ▁the ▁new ▁headquarters . ▁The ▁Atlanta ▁City ▁Council ▁and ▁Mayor ▁of ▁Atlanta ▁Sh ir ley ▁Franklin ▁approved ▁of ▁the ▁new ▁ 2 5 - year ▁AS A ▁le ase , ▁which ▁also ▁gave ▁the ▁air line ▁new ▁hang ar ▁space ▁to ▁work ▁on ▁ 1 5 ▁to ▁ 2 5 ▁aircraft ▁in ▁over night ▁maintenance ; ▁previously ▁its ▁aircraft ▁were ▁serv iced ▁at ▁Con course C . ▁The ▁air port ▁property ▁division ▁stated ▁that ▁the ▁hang ar ▁was ▁built ▁in ▁the ▁ 1 9 6 0 s ▁and ▁renov ated ▁in ▁the ▁ 1 9 7 0 s . ▁Eastern ▁Airlines ▁and ▁D elta ▁Air ▁L ines ▁had ▁previously ▁occupied ▁the ▁hang ar . ▁D elta ' s ▁le ase ▁originally ▁was ▁scheduled ▁to ▁exp ire ▁in ▁ 2 0 1 0