American Airlines Flight 11 is airborne at 7:59 a.m.

The hijacking begins at 8:14 a.m.

By 8:25 a.m., the hijackers are trying to communicate with the passengers but transmit over the radio instead, saying, “Nobody move. Everything will be OK. If you try to make any moves, you’ll endanger yourself and the airplane. Just stay quiet.”

Four bronze panels at the 9/11 Memorial outside the Overland Park Fire Training Center, 12401 Hemlock St., include a timeline and narrative of what happened aboard the airliners, in the executive offices of airlines, at the highest levels of government and eventually on the ground as the world learned terrorists were aboard four planes on Sept. 11, 2001.

“You come to read those excerpts, you put yourself on the plane,” said Jason Rhodes, spokesman for the Overland Park Fire Department. “It’s astounding.”

As the world commemorates the 20th anniversary of the attacks, honor guard members at the Overland Park site will strike a bell and lay a wreath at the exact time each plane struck the twin towers, the Pentagon and crashed in a field in Shanksville, Pa.

Starting at sunset on Friday, Sept. 10, two beams of light will illuminate the skies, staying on through sunrise on Sept. 12. The display will mirror the tribute at ground zero in New York City.

How Overland Park acquired 14-ft. beam

The memorial was the brainchild of firefighter Trevor Miller and Capt. Paul Bishoff.

In 2008, Miller saw on a website that the New York City Port Authority was seeking applications from communities around the country to distribute 1,200 remnants from ground zero.

Miller received approval to apply and recruited colleagues from the department, especially an English major, to help him complete the elaborate form.

They learned there were about 6,000 applications and only expected to receive a small token of the remains.

Instead, Miller said, they were praised for their plan and awarded a 14-ft., two-and-a-half ton beam salvaged from the underground metal skeleton of the twin towers.

The beam forms the centerpiece of the small plaza adjacent to the training center building. Pieces of horizontal girders jut out from the top, their jagged edges torn like a piece of paper, a sign of how violently they were ripped from the solid support infrastructure at ground zero.

Rhodes said the artifact gives visitors a visceral experience of what happened.

“It bears the scars of the day,” he said. “You can walk around it, put your fingers in some of the divots and think of what force it takes to do that to steel, the heat and the pressure.”

Design architects, SFS Architecture in Kansas City, Mo., positioned the beam in relation to the narrative panels so it acts as a sundial. As sun pours through a hole in the top of the metal, it shines on medallions placed on the timeline of the attacks at exactly the minute the planes went down.

On the north side of the site is a fountain, three metal plates with water spilling over the top.

The local sculptor, Reilly Dickens-Hoffman, melted the top layer of the metal with a torch, causing it to drip down in distressed patches.

Rhodes said it symbolizes the grief and loss of 9/11.

“It is meant to represent the images of the people coming out of the dust cloud at ground zero that day, their faces caked white with powder and trails of tears,” he said.

Officials with the department say barely a day goes by when a classroom of students or family with children don’t visit the site. And there will be the regulars on Saturday who come each year to commemorate the anniversary, including a flight attendant who lost colleagues and the parents of a young man working at the Pentagon.

Keeping the memory alive

Chris Juarez, 20, said he worried his younger siblings won’t learn about 9/11 the way he has.

It was around dinner time at a local park recently, and they were getting ready to kick a soccer ball around.

Born the same year of the attacks, he said he was concerned that 9/11 seems to become less and less important as years go by.

“Like, as time passes, teachers don’t really teach it no more,” he said, looking to his eight-year-old brother, Ivan, who he said he worries won’t understand how the events affected so many aspects of our lives.

“Teachers, they just put like a movie, or not talk about it at all,” Juarez said.

Air Force veteran Larry Grayer, 60, was in the military when Ronald Reagan was president, and said he learned to be a conservative by listening to Rush Limbaugh.

He said he worries the nation has become so polarized that his grandson will never see the way Americans came together in the immediate aftermath of 9/11.

“For that generation they need to know (what happened),” he said. “And they need to know why, and that’s why grandpa’s here, to guide them.”

Back at the 9/11 memorial in south Overland Park, there is a low wall with the nearly 3,000 names of those who died carved in stone.

Beneath the long, alphabetical rows is a quote from Virgil that reads, “No Day Shall Erase You From The Memory Of Time.”

Communities across the country will come together Saturday to observe the 20th anniversary of 9/11, to remember these names.

But what happens the day after that?

“This is the Pearl Harbor of my generation,” said Trevor Miller, now a fire inspector with the Overland Park Fire Department. “This is the 1941. It’s important we keep telling the story of Sept. 11 of 2001, also.”

KCUR 89.3 is Kansas City’s NPR affiliate public radio station. You can read and listen to more of their reporting at kcur.org.