I just thought I'd put a small chime in on the time stamping of the ACARS data. There are many unknowns given the particular system, but we can make some very reasonable assumptions. The incoming faults are timestamped and then the delay the manual talks about is most likely to prevent multiple logging of a single signal that may chatter erroneously from it's intended state. Since the faults are logged on a state of change this is a practical necessity of any system. That delay probably doesn't change the time stamp of the original fault. Theoretically the faults should all be logged in order then, even if different messages have different delay times. Upon being transmitted to the ACARS system, it probably doesn't retimestamp the messages. It could I suppose but it would serve no purpose.