ɪn nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi wˈʌn, ɪt dᵻsˈɜːɾᵻfˌaɪd—ðæt ˈɪz, stɹˈɪpt ɪt fɹʌm ɪts stˈæɾəs æz ɐ ɹˌɛpɹᵻzˈɛntətˌɪv jˈuːniən—ðɪ ˈɛɹ tɹˈæfɪk kəntɹˈoʊlɚz pˈætkoʊ jˈuːniən, ˈæftɚ ðə nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi wˈʌn ˈɛɹ tɹˈæfɪk kəntɹˈoʊlɚz stɹˈaɪk.
In 1981, it decertified—that is, stripped it from its status as a representative union—the air traffic controllers' PATCO union, after the 1981 air traffic controllers strike.