STC SA1209NW Home › Forums › Maintenance of Grummans › Engine › STC SA1209NW This topic is empty. Viewing 0 reply threads Author Posts November 22, 2021 at 15:13 #16524 Roscoe RoschéKeymaster STC SA1209NW Battery Relocation Paperwork For those interested, here is the text and pictures for this STC. Thanks to Rich Harrison for this information. Author Posts Viewing 0 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In