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I understand, that's why I mentioned that the pilots didn't recognize that it was a runaway trim issue. After the Lion Air crash, however, this information was
by cal5k 8y ago
I understand, that's why I mentioned that the pilots didn't recognize that it was a runaway trim issue.
After the Lion Air crash, however, this information was widely disseminated by the manufacturer. If the Ethiopian Airlines pilots were not properly trained on this new scenario then there was clearly a breakdown somewhere in the chain of communication.
- yason 8y agoThere is some cognitive limit of how many variants of procedures pilots can be expected to memorise and execute. Detecting a classic constant runaway trim is an old drill for pilots. Detecting a trim that gradually runs away, then stops to make the situation look normal, then runs away again until the plane is way off level flight is a new failure pattern. It works for non-critical software where users can learn workarounds for only those problems they happen to encounter. But it doesn't, in the long run, work for cases like aviation where there is a known but growing set of special conditions that the pilots need to learn and remember even if they don't ever bump into them.