3 ms·
It appears that Boeing's directive was simply wrong, and doomed them. The right response to faulty MCAS is not to do a stab trim cutout and then manually retrim
by ummonk 8y ago
It appears that Boeing's directive was simply wrong, and doomed them. The right response to faulty MCAS is not to do a stab trim cutout and then manually retrim, but to first use the manual electric trim switches to fix the trim and then immediately do a stab trim cutout. This is mentioned at the end of the directive, but reads more like an afterthought when it should be the standard procedure.
- VBprogrammer 8y agoIn my opinion the pilots here have attempted to follow that checklist as well as could be expected (bearing in mind that their lives depended on it). Having to trim to neutral before disengaging the trim would have contradicted the normal trim runaway checklist. We're now talking about pilots having to have abnormal levels of skill and possibly even strength to fly this aircraft. That's an untenable state of affairs. Boeing have really screwed this one up.