Story:
http://nbcpolitics.nbcnews.com/_news/2012/09/21/14017752-ann-romneys-plane-makes-emergency-landing?liteAudio clip attached, which I found on ZDC High, 9/21 2100Z archive. The only other audio I could find was Tower congratulating them on a good outcome. Somebody on High tells Center they hear WW12 on 128.65, which is covered (supposedly) by the Denver Low feed, but I heard nothing there. Lots of freqs on both these feeds, so possible they were blocked by other transmissions already in progress on the scanner.