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The aircraft of Southwest Airlines Co. are on Friday, January 19, 2018, on the runway of San Francisco International Airport (SFO) in San Francisco, California, USA, USA. Southwest Airlines Co. Expected to Release Profits in January 25. Photographer: David Paul Morris / Bloomberg on Getty Images
Southwest Airlines told its mechanics on Friday that it is experiencing a "business emergency" due to an unusually high number of grounded jets – and demanded that they appear for work or for work Risk abatement according to a corporate note issued on Friday and viewed by CNBC.