Where are you located? Where I am the requirement for stuff like that goes off the code data plate on the elevator. So if it was installed in 1990 at the 1985 asme17.1 code and flashing hat wasn't required then it wouldn't matter what they did to the fire alarm system because it wasn't required for that elevator when it was initially installed. They would only make us change it if we modded the elevator. I would look at your code books in a17.1 section 8.6 I believe is mod/ repair and I can't remember off the top of my head the fire service section
