Fan,Clg,Lower Hes,SVCE
  DO30M   Use Starting With Serial #16230892
          Prior to Serial #16230892 See 823373
          Also Use Prior to #16230892 If 827064
          Has Been Installed
  SO30M   Use Starting With Serial #22607000
          From #16223239 to #22607000 And Between
          #16219812 And #16219842 See 826978
          Prior to Serial #16219812 And Also
          Between #16219842 And #16223239 See
          823373