Hacker News new | ask | show | jobs
by refurb 29 days ago
While true, pilots aren’t trained to just “respond to the alarm” they are trained to fly the plane.

Once there were multiple alarms that made no sense at all (petty early in the event), the pilots should have ignored them as per the checklist.

But the most damning thing is the one pilot pulling the stick back and holding it back for almost the entire event. There aren’t any flying conditions where that’s an appropriate input. Not to mention being told to give up control and ignoring that request.

I agree Airbus has some blame in terms of the computer system not adequately communicating when it drops out of normal mode.

2 comments

Yeah the computer is never flying the plane it is always the pilots who have final decision. Which is ofcourse also why the computer will let you fly into a mountain if you want.
> There aren’t any flying conditions where that’s an appropriate input.

It's the procedure for various GPWS cautions and warnings on Airbus planes, and can also be done in a windshear.

I stand corrected. But suffice to say it’s not an appropriate input when you lose airspeed at 35,000 ft.

I read the Admiral Cloudberg article again and saw that it was procedure for other scenarios as well.

It seem like the normal mode (protected flight envelope) is just encouraging bad habits? “Just go full stick back and hold it, don’t worry the computer won’t let you stall the plane…most of the time”

> It seem like the normal mode (protected flight envelope) is just encouraging bad habits?

Maybe, but at the same time it helps avoiding crashes like Sriwijaya 182 or Flydubai 981. Airbus has shown that planes with fly-by-wire and any kind of flight envelope protection (A320 and newer, A220, B777 and 787, etc.) experience less fatal accidents and less hull losses than planes with traditional controls (A300, A310, B737, etc.), even today: https://accidentstats.airbus.com/fatal-accidents/

Unfortunately, these safety improvements mean that we only hear about cases where automation fail to help, like in the case of AF447, but not cases where it prevented an accident.