▁of ▁the ▁ 5 th ▁Observ ation ▁Group ▁at ▁Luke ▁Field . ▁He ▁became ▁its ▁commander ▁from ▁April ▁ 1 2 , ▁ 1 9 2 2 ▁to ▁May ▁ 2 0 , ▁ 1 9 2 2 , ▁and ▁again ▁( now ▁the ▁ 5 th ▁Compos ite ▁Group ) ▁from ▁November ▁ 1 0 , ▁ 1 9 2 2 , ▁to ▁April ▁ 1 3 , ▁ 1 9 2 3 . ▁During ▁his ▁Hawai ian ▁tour , ▁Old s ▁was ▁cred ited ▁with ▁the ▁first ▁night ▁flight ▁over ▁O ahu ▁on ▁June ▁ 3 0 , ▁ 1 9 2 0 ; ▁the ▁first ▁flight ▁to ▁Mol ok ai , ▁on ▁August ▁ 1 8 , ▁ 1 9 2 0 ; ▁and ▁the ▁first ▁flight ▁over ▁H ale ak al ā ▁cr ater ▁on ▁August ▁ 2 5 , ▁flying ▁de ▁Hav ill and ▁D H - 4 B s . ▁ ▁Old s ▁transferred ▁in ▁ 1 9 2 3 ▁to ▁the ▁Office ▁of ▁the ▁Chief ▁of ▁Air ▁Service ▁in ▁Washington , ▁D . C ., ▁where ▁he ▁worked ▁in ▁the ▁War ▁Pl ans ▁Division , ▁often ▁as ▁an ▁a ide ▁to ▁the ▁Ass istant ▁Chief ▁of ▁the ▁Air ▁Service , ▁Gen . ▁Mitchell . ▁ ▁In ▁October ▁ 1 9 2 5 ▁he ▁assist ed ▁Mitchell ▁during ▁the ▁Mor row ▁Board ▁hear ings , ▁and ▁the ▁following ▁month ▁at ▁Mitchell ' s ▁court ▁mart ial . ▁With ▁his ▁career ▁conce iv ably ▁in ▁je op ard