Transcript for Mid air explosion, debris over homes
news this Monday night and that terrifying flight out of Denver. The engine on that Boeing 777 ripping apart after takeoff, seen by passengers through the window on fire. Huge chunks of debris raining onto neighborhoods below. Tonight, more than 100 planes have now been grounded and what federal investigators have now discovered about that plane. And the stories from inside the a mother holding her daughter's hand, praying, as we learn about another Boeing plane with an engine coming apart in midair this weekend, too. Here's ABC's gio Benitez tonight. Reporter: Tonight, that terrifying image in the sky, a Boeing 777's engine blown apart moments after takeoff. Mayday mayday, aircraft just experienced an engine failure, need to turn immediately. Reporter: The massive pieces raining on neighborhoods below. It almost landed on my head. Reporter: The fear in the cabin. My daughter, we held hands and I started praying. Reporter: The united flight carrying 231 passengers from Denver to Honolulu turning around and landing safely. But now, the FAA is calling for immediate inspections. More than 100 planes grounded around the world, 52 of them at united alone. At issue, a specific engine made by Pratt and Whitney. Here you see a broken fan blade. Sources tell ABC news those fan blades have a unique hollow design that may require deeper inspections. This is an engine that has been around for a long time. It was designed in the early '80s and it's not currently installed on any of the triple 7s that are being manufactured. Reporter: Just this weekend in the Netherlands, a 747's engine also fell apart after takeoff. And David, the debris did hit the fuselage. This could have been so much worse for us. Gio, thank you. We're going to turn now to
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