Nark Macho Superpilot Dec 6, 2013 #1 I (IA did) installed a fuel totalizer in my stinson this week. There is an STC for the mod. Out of curiosity, do I still need to apply for a 337?
I (IA did) installed a fuel totalizer in my stinson this week. There is an STC for the mod. Out of curiosity, do I still need to apply for a 337?