Originally posted by HN39;
Both explanations don't quite line up with the diagram posted by PJ2. If ADR DISAGREE does not cause A/P disengagement, then it was probably caused by DOUBLE ADR FAULT due to a rapid change of CAS and Mach in at least two ADR's.
Looks like this may be another case where the software programing and the documented behavior may not always be the same. More succinctly, the tail starts wagging the dog!
On the subject of the 0.45 sec period; I assume that the actual data acquisition rate is 0.15 sec (150ms). Can you confirm that figure?