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Refer to figure.
Due to a cabin pressurization defect, the maximum differential pressure is limited to 2 psi. Assuming you don't want the cabin altitude being greater than 14 000 feet, the maximum achievable flight altitude is approximately…

  • A
    20 000 ft
  • B

    8600 ft

  • C

    2900 ft

  • D
    12 000 ft

Refer to figure.
(1) Enter the graph at the bottom scale at a value of 14 000 ft;
(2) Continue vertically up until you intersect a value of 2 PSI pressure differential;
(3) From this point, continue horizontally to the left and read an approximate result of 20 000 ft.

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