Data from the Shuttle Entry Air Data System (SEADS) port arcjet test were correlated using conventional finite difference thermal analysis methods to demonstrate the applicability of such methods to flight analyses. The arcjet tests were conducted to demonstrate the integrity of the SEADS-coated columbium port and provide data required to accomplish SEADS preflight analysis. The successful correlation of the results from finite difference thermal analysis methods and the test data demonstrated these methods for flight analysis. Using these techniques, a preflight analysis of the SEADS was performed and it was concluded that the maximum port temperature will be at a safe level for the first SEADS mission.