The coordinated terrorist attacks of September 11, 2001 unfolded at nightmarish speed. At 8:46 a.m., the first plane struck the North Tower of the World Trade Center. Sixteen minutes later, a second jet hit the South Tower. At 9:37, an airliner hit the Pentagon. Within hours, thousands had died, including hundreds of first responders who’d rushed to the scenes to help.
But after the events quieted and the scope of the damage came into relief, it became clear that there was at least one element of the al-Qaeda terrorist plot where the damage had been mitigated—with the fatal crash of United Airlines Flight 93.
Like the three other planes hijacked on September 11, Flight 93 was overtaken by al-Qaeda operatives intent on crashing it into a center of American power—in Flight 93’s case, likely the White House or the U.S. Capitol. But instead of hitting its intended target, the United jet went down in a field in rural Pennsylvania. While all 44 people aboard the plane were killed, countless people who might’ve perished in Washington were spared because of a passenger revolt—a heroic struggle undertaken with whatever low-tech weapons they and the cabin crew members could muster.
Brendan Koerner, author of The Skies Belong to Us, a book about domestic airline hijackings in the 1960s and 1970s, says that in the hundreds of cases he studied for his book, he never came across anything like Flight 93’s passenger revolt.
MORE: September 11: Photos of the Worst Terrorist Attack on U.S. Soil
“The attitude of passengers tended to be that airlines would give the hijackers what they wanted, and so there was relatively little threat to the passengers,” Koerner says. “There aren’t really that many instances of passengers getting involved.”
HISTORY looks back at a timeline of how the passengers aboard Flight 93 prevented their plane from striking in Washington.
7:39–7:48 a.m.: The terrorists board, likely one man short
On the morning of September 11, four terrorists boarded United Airlines Flight 93 at Newark International Airport: Ziad Jarrah, a trained pilot; and three others, who were trained in unarmed combat and would help storm the cockpit and control the crowd. All four sat in first class.
There was one fewer hijacker on Flight 93 than the five-man crews that commandeered the other three planes, leading the 9/11 Commission Report to speculate that the United Airlines hijacking operated with an incomplete team. That commission speculated that an intended fifth hijacker—Mohammed al-Qahtani—had been refused entry to the country in early August at Orlando International by a suspicious immigration official, who thought al-Qahtani wanted to overstay his visa and live in the United States.
8:42 a.m.: The flight departs late
UA 93 left its gate at Newark International at 8:01 am, only one minute later than scheduled. But heavy traffic on the runway delayed takeoff for approximately 42 minutes.
As a result, one of the flights (Flight 11) was hijacked nearly half an hour before UA 93 had even left the runway, and both of the World Trade Center towers would be hit before the hijackers on Flight 93 had taken over their plane.
READ MORE: September 11: Six Ways Uncertainty Reigned Aboard Air Force One
9:24 a.m.: Airline dispatcher warns United 93 about cockpit intrusion
With multiple hijackings unfolding across the country, United Airlines dispatcher Ed Ballinger sent a text message warning to pilot Jason Dahl: “Beware any cockpit intrusion—two a/c [aircraft] hit World Trade Center.”
Dahl, seemingly confused, wrote back, “Ed, confirm latest mssg plz—Jason.”
9:28 a.m.: United 93 is hijacked
While flying 35,000 feet above eastern Ohio, United 93 suddenly lost 7,000 feet as the terrorists rushed the cockpit. In the cockpit, the captain or first officer could be heard shouting “Mayday!” and “Get out of here!” into a radio transmission.
Sometime before 9:30 a.m.: Hijackers kill a passenger in first class
Tom Burnett, a first-class passenger on the flight, called his wife from the back of the plane at 9:30 to report the hijacking. On the call, Burnett told his wife, Deena, that a passenger had been knifed in front of the other passengers. On a subsequent call a few minutes later, he told her the passenger had died.
READ MORE: On 9/11, Heather Penney Tried to Bring Down Flight 93 in a Kamikaze Mission
9:32 a.m.: Hijacker Ziad Jarrah threatens the passengers via the intercom
“Ladies and Gentlemen: Here the captain, please sit down keep remaining sitting. We have a bomb on board. So, sit.”
9:35 a.m.: Jarrah redirects the jet’s autopilot toward Washington, D.C.
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At approximately the same time, recordings from the cockpit capture the sound of a flight attendant pleading for her life, then falling silent.
WATCH:The Todd Beamer Story "Let's Roll"
9:35–9:55 a.m.: Passengers and crew call their loved ones
For approximately 20 minutes, passengers and crew relayed information about their hijacking…and received word of the grim news on the ground. Planes had, by this point, struck both of the World Trade Center towers and the Pentagon. The passengers knew they were staring down a similar fate.
Passenger Jeremy Glick told his wife Lyz that passengers were voting on whether or not to storm the cockpit in an attempt to take back the plane.
“I have my butter knife from breakfast,” he reportedly joked.
Burnett told his wife that the passengers were going to wait until they were above a rural area before attempting their action.
Flight attendant Sandra Bradshaw boiled water, to throw on the hijackers.
Those on the flight who couldn’t get through to their loved ones left heart-wrenching voicemails instead. Flight attendant CeeCee Lyles called her husband, told him she loved him, and asked that he take care of her children.
“Are you guys ready?” one of the passengers, Todd Beamer, could be heard saying to the others while on a call with a telephone operator. “Let’s roll.”
READ MORE: Behind the 9/11 White House Order to Shoot Down U.S. Airliners: 'It Had to Be Done'
9:57 a.m.: The passenger revolt begins.
The cockpit voice recorder captured the sound of passengers attempting to break through the door: yelling, thumping and crashing of dishes and glass. In response, Jarrah tried to cut off the oxygen and began pitching the plane left and right, to knock the passengers off balance.
9:58 a.m.: Jarrah instructed another hijacker to block the door.
9:59 a.m.: Jarrah began pitching the plane up and down, again hoping to neutralize the passenger assault.
10:00 a.m.: The hijackers discuss crashing early
Still approximately 20 minutes away from their target, the hijackers recognized that they would soon lose control of the aircraft.
“Shall we finish it off?” Jarrah asked one of the other hijackers in the cockpit.
“Not yet,” was the reply. “When they all come, we finish it off.”
In the background, a passenger screamed to another, “In the cockpit. If we don’t, we’ll die!”
READ MORE: 5 Ways September 11 Changed America
10:01 a.m.: The hijackers decide to crash the plane
Jarrah again asked the other hijacker if he should crash the vehicle. This time, he was told, “Yes, put it in it, and pull it down.”
Jarrah pulled the control wheel hard to the left, causing the plane to fly upside down, and then to crash into the ground at a speed of 580 miles per hour.
It was 10:03 a.m.
Twenty-five minutes later, the second World Trade Center tower collapsed.
In an act that has become American lore over the past twenty years, the passengers and crew members chose to attack the knife-wielding hijackers and “retake the plane.” They rushed the first-class cabin, carrying out what the 9/11 Commission's report called a “sustained” assault.
Primarily airplane wreckage, some personal effects, and a very small amount of unidentified human remains were found.
It was a big deal when we did find it and I believe it was slightly over 25 feet into the crater. In the case of the flight data and voice recorders, they were taken out to Seattle because they were damaged to the point where they had to go back to the manufacturer.
Nearly 3,000 people tragically lost their lives. Because of the actions of the 40 passengers and crew aboard one of the planes, Flight 93, the attack on the U.S. Capitol was thwarted.
Mohammed indicated in a 2002 interview with the Doha-based Al Jazeera News Network that the intended target of Flight 93 had been the United States Capitol Building located in Washington, DC.
At age 20, Deora Frances Bodley of San Diego, California was the youngest person aboard Flight 93.
On September 14, 2001, at 8:30 pm, the CVR was recovered--25 feet underground in the impact crater. The audio from Flight 93's CVR was used in the trial of Zacarias Moussaoui. It was also played for the families of the passengers and crew members.
Tim Lambert's family owned part of the tree-filled land where Flight 93 crashed on Sept. 11, 2001. Tim Lambert, weary from a long day of reporting on Sept.
When the plane crashed in a Pennsylvania field on September 11, it was 20 minutes flying time from the nation's capital. On the morning of September 11, 2001, 46 minutes into United Airlines Flight 93, a nonstop flight from Newark, New Jersey to San Francisco, four hijackers took control of the Boeing 757-222.
The plane crashed in an open field next to a wooded area in Stonycreek Township, Somerset County, Pennsylvania at 10:03:11 am. The nearest town is Shanksville. Flight 93 struck the ground at a 40 degree angle almost upside down, hitting right wing and nose first, at a speed of between 563-580 miles per hour.
On Sept. 11, 2001, United Airlines Flight 93 left Newark, N.J., at 8:42 a.m., heading for San Francisco, Calif. There were 38 passengers and a crew of seven on board. About 80 minutes later, the plane crashed into a field in Pennsylvania.
They ranged from the $25,000 United Airlines gave to each family without asking them to waive their right to sue, to donations of a few dollars from schoolchildren around the country. Todd Beamer's now-famous phrase, "Let's roll," has come to symbolize the Flight 93 passengers' struggle to overpower the hijackers.
According to the FBI, thirty-seven phone calls were placed from on board Flight 93 between 9:28 when the plane was hijacked until the time of the crash at 10:03. Thirty-five of these calls were made on the Airfones located on the back of the seats in the last nine rows of the plane.
A passenger on United Airlines Flight 93, Todd Beamer helped lead a revolt against the terrorists who hijacked his plane on September 11, 2001 — and may have saved the U.S. Capitol. For most of his life, Todd Beamer dreamt of becoming a professional baseball player.
Question: Why, after a plane has crashed into the water, do investigators put the "black box" back in water? – Will Cowger, Houston. Answer: If a flight data recorder is recovered from the water, it is submerged in fresh, clean water to prevent deposits such as salt or minerals from drying out within the device.
Can a black box be destroyed? Well, technically, yes, a black box can be destroyed. But it will take a lot. Before being seen fit to be installed in an aircraft, a black box must be able to withstand 3,400 Gs (3,400 times the force of gravity), which equals an impact velocity of about 310 mph.
It must also survive flames up to 2,000 degrees F for one hour, and the beacon should be able to emit a signal once per second while submersed in 20,000 feet of saltwater for 30 days.
Nineteen terrorists from al-Qaeda hijacked four commercial airplanes, deliberately crashing two of the planes into the upper floors of the North and South Towers of the World Trade Center complex and a third plane into the Pentagon in Arlington, Virginia.
The hijackers might have used a predetermined signal: when the pilots turned off the Fasten Seatbelt signs. It is unknown how the hijackers gained access to the cockpit; FAA rules at the time required that the doors remain closed and locked during flight.
The ATC will have to give the aircraft priority landing and clear all traffic below so the aircraft can land unhindered. If there is a bomb threat the pilot has to follow to quickly climb down to 10,000 feet and depressurize the aircraft to reduce the risk if the bomb explodes, Ranganathan said.
The Flight 93 Story. On the morning of September 11, 2001, al Qaeda terrorists hijacked four commercial airliners in a strategically planned attack against the United States.
Flight 93 struck the ground at a 40 degree angle almost upside down, hitting right wing and nose first, at a speed of between 563-580 miles per hour. It was carrying approximately 5,500 gallons of Jet A fuel at impact.
When United Airlines Flight 93 was hijacked, thirteen passengers and crew members responded by placing phone calls to the authorities, to United Airlines, and to their family members and friends.
Families of 2,880 victims received almost $6 billion in compensation. In addition, 2,680 physical injury victims were paid over $1 billion by the 9/11 Fund.
At the end of the process $7 billion was awarded to 97% of the families. A non-negotiable clause in the acceptance papers for the settlements was that the families were to never file suit against the airlines for any lack of security or otherwise unsafe procedures.