Tube Inlet Extension SVCE (511,550,611(-2),650(-2)
  511     Use Starting With Serial #1184540.
  550     Use Starting With #M1184540/P1200040 And
          Between Serial #1182990-#1183389.
  611     Use Regardless of Serial Number.
  650     Use Regardless of Serial Number.
  611-2   Use Regardless of Serial Number.
  650-2   Use Regardless of Serial Number.