The key thing in this article is that the problem involves a new geared engine design. So besides being a engine type, IndiGo had been deliberately stressing it

The key thing in this article is that the problem involves a new geared engine design. So besides being a engine type, IndiGo had been deliberately stressing it. Some other aviation "Ooops!" moments: Mahalo Airlines in Hawaii ended up shutting down after their inexperienced pilots did hot engine starts, each one taking an ATR turboprop airliner out of service. The AA587 A300 accident over New York was caused by the pilot applying maximum rudder travel until the vertical stabilizer broke off. Apparently one of his instructors taught him to fight the controls.