Others closed the windows, picked up their loved ones and prayed. Thousands of feet below, in a Denver suburb, people on the ground rushed to shelter to avoid the debris that suddenly fell to the ground.
The pilots issued a distress call and, after returning to the airport, landed the plane safely. Notably, there were no reports of injuries in the air or on the ground. Still, interviews with passengers show that the incident caused a big scare for everyone involved. See how those in the air and down there said they reacted during those moments of tension.
Travis Loock, a passenger on Flight 328, told CNN that it was about 20 minutes after takeoff to Honolulu that he heard a crash.
“There was a big bang and the kind of sound you don’t want to hear when you’re on the plane,” said Loock, who was flying with his wife, in a phone call. “And I immediately put my blinds on and was very afraid to see that the engine on my side was missing.”
“We are happy that we did not cross the ocean, because that is where we were going,” he said.
Loock said he could feel the fear on the plane, but everyone was “very calm”.
“A lot of people couldn’t see the engine from that side, right, so I was a little more scared because I could see it and I knew it wasn’t right,” he said.
When Bob Brown heard the explosion, he looked out the window, saw the engine damage and took out his phone to film it.
“We looked at each other, my wife and I, held hands and wished that our children would see them again,” he told KCNC.
‘Let’s just pray’
Vena said the crew’s professionalism calmed them, but said he was still concerned.
“There was no panic among the crew, there was no panic among the passengers,” he said. “I only cared about my kids because they are not with us, so they are at school and this is our first vacation alone in 21 years.”
“At first, I think I panicked,” Dan Smith, from Portland, Maine, told KCNC, “but I think people did a good job to calm down.”
Danielle Thomas, who lives in Honolulu, praised the flight crew for their behavior.
“I think the drivers have made a big contribution to making everyone feel safe and comfortable,” she told KCNC.
Troy Lewis said he felt confident that they would return safely.
When the plane landed safely, people applauded before leaving.
Back on dry land, Loock said he calmed his nerves and prepared for the rest of the trip.
“Let’s have a cocktail,” said Loock. “And yes, let’s try again. Let’s try again. Chances are with us this time.”
He was not alone in wanting to continue his journey. United said in a statement that most passengers boarded another United flight to Honolulu, while “those who did not wish to travel with us tonight received hotel accommodation”.
What those on the ground did
While those in the air stressed by the landing, those on the ground looked up to see debris falling from the sky.
“But as soon as I open the door, I say, ‘this is the front engine of an airplane’,” said Klements.
Kieran Cain told CNN that he was playing with his children at a local elementary school when a plane flew over and they heard a loud crash.
“We saw it fall, we heard the big explosion, we looked up, there was black smoke in the sky,” Cain told CNN.
“The wreckage started to rain, and you know, it looked like it was floating and not too heavy, but now looking at it, it’s giant pieces of metal all over the place,” he said.
“I was surprised to see that the plane continued without interruption, without really changing its trajectory or doing anything,” he said. “It just went the way it was going as if nothing had happened.”
Cain said he and his children took shelter at a lookout near the playground and saw the wreckage fall about two or three blocks away.
“So I went up to pick up my wife and baby who were napping up there and asked them to come down and make sure they were safe,” he said.
Hollie Silverman of CNN contributed to this report.