"Purpose The FAA has issued Advisory Circular@ AC43-207@ that recommends re-correlation@ trending or period checks. The FAA@ AC43-207 bases their recommendation on ARP741. This paper describes a recommended practice and procedure for the configuration control requirements to maintain test cell correlation status. This is necessary to maintain performance measurement integrity@ particularly when correlation approval is achieved by statistical trending. The configuration of a test facility that exists at the time when a correlation is being carried out should be ""base lined"" as a condition of correlation approval acceptance@ and@ be maintained during the time period that the respective correlation approval lasts. This defines test facility configuration control. This is due to the fact that a change in configuration may have the potential to change the established correlation factors and measured engine performance. If such a change occurs then this should be judged by the respective OEMs or designated correlation approval authorities Subject Matter Expert (SME). In some cases@ this may involve consultation with the engine project customer or airworthiness authorities. The purpose of this paper is to recommend a means of identifying@ recording@ documenting and maintaining the configuration status of all correlations@ including those where re-approval is achieved by using statistical trending methods rather than physical back-to-back type testing. This paper can be considered applicable to all types and standards of test facilities in the aero@ marine and industrial gas turbine engine businesses."
SAE ARP6028A-2015 history
2020SAE ARP6028A-2020 Configuration Control for Maintaining Correlation of Gas Turbine Engine Test Cells
2015SAE ARP6028A-2015 Configuration Control for Maintaining Correlation of Gas Turbine Engine Test Cells
2009SAE ARP6028-2009 Configuration Control for Maintaining Correlation of Gas Turbine Engine Test Cells