That one passenger who made me double check my door sensors
Back in March I was doing a routine PM at a 12 story building in Minneapolis, and this older lady walks up while I'm testing the re-leveling with a full load. She points at the gap between the car and the hoistway and says, 'my shoe got stuck there last Tuesday, are you sure that's safe?' I ran the numbers after she left, the gap was within code but only by like a quarter inch. It hit me that we get so used to tolerance charts, but a passenger's real experience is way different from a spec sheet. Has anyone else had a tenant or rider point out something that made you verify something you assumed was fine? What did you find?
How often do you actually get a chance to measure the gap under a real load with the car sitting at a floor like that, because static measurements with the car empty will lie to you every time? A full load changes the sill height, the car can squat on its springs, and suddenly that quarter inch you had on paper is gone. I've seen guys check the gap at the top floor with nobody in the car and call it good, then the same car at the bottom with weight in it is a whole different story. The bigger question is whether that gap was even measured at the worst case floor, because re-leveling only happens after the load changes and the car can stop anywhere in between. That lady probably saved you a callback or worse, and the spec sheet never would have told you.