Originally Posted by
HazelNuts39
Two A340 'level bust' incidents have been discussed recently on this forum: TC-JDN on 2/10/2000 and F-GLZU on 22/07/2011. In both cases there was an overspeed warning but the overspeed protection was not activated.
I was referring to the second one where at least the FDR trace shows 2 overspeed events right at the beginning of the incident.
See
http://www.bea.aero/docspa/2011/f-zu...f-zu110722.pdf page 18.
But indeed it seems the pitch up was due to Sidestick input although the AoA starts to increase prior to deflection of the S/S which I attributed to overspeed protection. Looking closer at the traces the pitch only starts to increase after the NU S/S commands.
In the text overspeed protection is also not explicitely mentioned, therefore I come to agree to your statement and stand corrected.