Art of flight;
Just read the AAIB report on G-LBAL, the thing that's made that report possible in such a short time that's missing here is the CVR. Perhaps it's now time to make sure all PT aircraft have them fitted.
SPAO incident on 29 Nov, 4 page special bulletin issued 9 December, 10 days later.
LBAL incident on 13 March, 3 page special bulletin issued 3 April, 21 days later.