alekr 43 #1 Posted August 30, 2012 When I was riding the packed 7 train I stood by the door and saw this "air tested okay" on the subway car. What is the subway "air" means? I don't really understand why it is vital to test the air? Quote Share this post Link to post Share on other sites
B3 Via Av U 178 #2 Posted August 30, 2012 I think it has to do with the air brake pipe. If there's a leak, you don't have pressure. Quote Share this post Link to post Share on other sites
FriedChikkin 160 #3 Posted August 31, 2012 Where on the subway car? It was just written on the door... on the wall someplace? Quote Share this post Link to post Share on other sites
alekr 43 #4 Posted August 31, 2012 it was on the car connection below the gap between cars Quote Share this post Link to post Share on other sites
Fresh Pond 5,363 #5 Posted August 31, 2012 it was on the car connection below the gap between cars The couplers... Quote Share this post Link to post Share on other sites
