mickjoebill is correct, we along with tyler have been working with the faa, easa on a new format of stc that allows the operator to install a payload / sensor then conduct a ground / flight test. this data can then be used for subsequent installs of the same payload type, or if the stc holder chooses, can be added to the stc as an approved payload, for all to use as a method of returning the airframe / equipment to service
tyler just got their r44 faa and easa stc with this format, we will be doing the same for our ec-135 and 145 step mount, early in the new year. send a pm if you have any questions, can send along a format version of the new appendix.
thanks
cal
www.meekeraviation.com