One of the investigators told me that the famous squeal obscuring the PanAm's transmission was in fact audible in the KLM cockpit. The Dutch would not accept this
It's difficult to see why they wouldn't accept this. First of all, it was noted by independent analysis of the KLM CVR. Second, surely it gave KLM some sort of claim to a weakness in the 'system'.
In any case it was well recorded. KLM CVR below, followed by PanAm CVR.
