Originally Posted by
Oldlae
212man, to be pedantic, it was 5 mm, not 7, I talked to the C/E about it. The CAA wrote an Airworthiness Notice on the subject.
Ah ok - it was about 10 years ago that I read the report (original hard copy). I recall that actually the MGB was flushed at one point and the counting restarted from zero, so the actual accumulation was even greater than the error, so possibly that's where my own error stems.