Op Technologies has asked the FAA for a supplementary type certificate (STC) to install its advanced Electronic Flight Instrument System in to Cirrus SR22 aircraft. Op Technologies traditionally supplies the experimental market but is trying to get STC approval in the SR22 for its Pegasus system, which isnt listed on its Web site but might be the launch name for a certified version of its existing products. Cirrus spokeswoman Kate Dougherty said Op is undertaking the project independently and its not something spearheaded by Cirrus. We are happy that others take initiative to build on our technology, she told AVweb on Sunday. The FAA says it has some concerns about the STC, namely protection from High Intensity Radiated Fields and the way the gear is wired to other stuff in the panel (coupling to cockpit-installed equipment through the cockpit window apertures) and is inviting comments until July 9. Just what the Cirrus installation will entail isnt clear, but Op offers some interesting features in its experimental models. The Flight Op EFIS includes synthetic vision and a forward-looking infrared (FLIR) system as options.