title: NextGen update.
authors: FAA Civil Aeromedical Institute, Oklahoma City, OK, USA.
authors: Jerry M
authors: JM
authors: Crutchfield
mesh_terms: D000060:Accidents, Aviation / Q000517:prevention & control*; D001359:Aviation / Q000295:instrumentation / Q000458:organization & administration*; D006077:Government Agencies; D006801:Humans; D016730:Program Development; D012449:Safety; D014481:United States