Thanks, Timsan, you've been a big help. What exactly is the correlation between deciphering the company's specific codes on a roster and offering a sensible opinion on a serviceability issue? Incidentally, as a former aircraft engineer I think I'm probably far more qualified than many around here to offer such opinions. Fortunately, from your profile, it doesn't look like we'll be running into each other in the near future because you're clearly full of it!