Originally Posted by NigelOnDraft
The lessons would clearly be HF based, given the previous instances... and some training and/or systems change required to prevent something I find strange to be happening, but appears not to be a "one off"...
One change that was also suggested in the Taipei accident investigation (section 2.5.4) is not to inhibit the RETARD warning on one engine reverse selection. In other words, if you forget one of the thrust levers to above idle during the ground run, the warning will not cease until you positively correct it (or failing that, have such a serious overrun that it removes power from the FWC).
I know it's not a fool proof method due to the sensory lockout problems associated with repeated warnings, but IMHO a warning of that sort should not automatically stop without being acknowledged. Selecting reverse on one engine with the other being higher than idle should be considered a very serious misconfiguration during the landing roll and be associated with a Master Caution annunciation (and this would be separate from the normal call at 20 ft RA). If you ever need to use reverse on one side and high thrust on the other while taxying, then it would be cancellable as a Master Caution or from the ECAM.