00530nam 2200169z- 450 9910693706603321(CKB)4970000000042594(EXLCZ)99497000000004259420240129c2001uuuu -u- -engNational Airspace System : long-term capacity planning needed despite recent reduction in flight delaysWashington, D.CNational Airspace SystemDOCUMENT9910693706603321National Airspace System3424084UNINA