Way back when the company I worked for purchased DC9s when they were brand new kit, which resulted myself and a now deceased captain being the first to experience a double engine flame out just short of V1. {a small dip in the runway surface had trapped about two inches of slush unnoticed by the folks who cleared the runway in case your thinking we went with known excessive slush on the surface} so you can understand my horror when I saw one of the offending airline in question DC9s, in mid winter, with about two inches of wet snow on the runway loading passenger's at a northern field just south of the Canadian border, to further ad to my horror the crew were un-aware of the requirement to have "M Chine" tires {tyres} fitted under such conditions.{ to deflect the slush away from the engines in case you are not familiar with the DC9 and its problem} When I departed there seemed to be a rather heated discussion going on between the Feds and the crew, what the outcome was I don't know. The fact that the crew had to be shown the requirement in the aircraft manual hardly indicated its the sort of minor detail by any means when it comes to crew training! I just find it stupefying that a man who was at the helm when hazardous cargo of the most dangerous kind which resulted in the most horrific crash and loss of life when it was loaded in a DC9 is allowed to still run an airline,