The Allison Model 501-K14 industrial gas turbine engine, a modified version of the T56 aircraft engine, has been used extensively as a prime mover for industrial applications. The areas of application to date have been in the gas transmission field driving centrifugal gas compressors and driving electrical generators. This paper describes a 1000-hr cyclic test of the Model 501-K14 engine with salt water ingestion as the first step in qualifying the engine for marine application. Performance data, photographs of the installation and engine components, and inspection results are included in this report.