The problem is old, new planes don’t have that problem. The the technology is antiquated because the planes are antiquated, because they are (or were) built wit

The problem is old, new planes don’t have that problem. The the technology is antiquated because the planes are antiquated, because they are (or were) built with good quality and lasted long. Appart from that, how much could it cost? Well, the battery maybe a couple hundred US pesos, but the whole test, verification and validation until approval, plus changing all planes? You have to ask Catl Sagan. Last but not least: I think the key to understanding the accident will still be there (they shut down the wrong engine, for example) if that is the case, even with this little problem, the boxes dis their work… so, no need for new things.