Pasquale Buzzelli, a structural engineer who became a legend after “surfing” down a wave of falling debris during 9/11, has spoken about his miracle survival and how having children has helped him rebuild his life.

Pasquale Buzzelli, 43, who was working as a structural engineer for the Manhattan Port Authority, was one of the last to evacuate the North Tower as it began to collapse.

He claims that he had reached the 22nd floor when the building collapsed beneath him and he was carried down through a blizzard of debris to the seventh floor, where he was rescued by firefighters.

At the time his wife Louise was pregnant with their first child Hope, now ten, and they have since had a second daughter Mia, seven.

He suffered survivor’s guilt for years afterwards but has finally come to terms with the grief thanks to his family.

Pasquale Buzzelli said: “Time heals all wounds and you start to experience joy.

“With the birth of Mia I was finally able to experience those feelings and not feel guilt. In that sense I’ve realized that the best way to honor those that didn’t make it, is to be the best person that I can be.”

His story is told in the Discovery Channel and Channel 4 documentary 9/11 The Miracle Survivor which is screened next week on the 11th anniversary of the disaster.

Pasquale Buzzelli was one of the last to evacuate the North Tower as it began to collapse

Holding the battered briefcase he was carrying that day, he said: “I haven’t opened this up in quite a few years. I came across it in my basement a couple of years after 9/11. I don’t even keep it in the house as it’s a constant reminder of that day. Its basically rode down the building with me and its battered and torn and just a reminder of how lucky I was to survive.”

His story of survival has divided experts. Shiya Ribowsky, who led the investigation into 9/11, said: “You know I have a healthy skepticism which is in no way a reflection on this man’s character.

“In forensics there are certain statistics about the likelihood of surviving a fall and once you get above five stories then statistics are pretty grim. So you’re talking about an exceptional situation. You’re talking the wings of angels here.”

However, Prof. Thomas Eager of the Massachusetts Institute of Technology has studied the physics of the collapse and believes that the hurricane force wind pushed him down 15 stories.

“His description of a rollercoaster clinched it for me in believing the whole thing,” he said.

Pasquale Buzzelli, who now works in emergency planning for the Port Authority, was in an elevator on his way up to his office the 64thfloor of the North Tower, when the first plane struck at 8:46 a.m.

But instead of evacuating the building, he felt a duty to remain at his desk. He and his colleagues at the Port Authority, were watching the news when the second plane hit.

They finally began to exit at Stairway B, reaching the 22nd floor at 10:28 a.m. when the tower began to collapse.

“I thought something heavy is falling through the stairs or part of the building is collapsing and falling through,” he said.

“I just dove into the stairwell, went into a foetal position, covered my face and hands and buried myself as close to the wall as possible to protect myself from anything falling through.

“It was then that I felt the wall that I was next to and the base of the floor crack open and give way. That’s when I knew that that was it: the entire building was going. I said to myself: <<My God I can’t believe this is. I’m going to die>>. I thought of my wife, my unborn child.”

Pasquale Buzzelli’s wife Louise, who was seven months pregnant with their oldest daughter Hope, now ten – they have a second daughter Mia, six – watched in horror as the tower collapsed.

“I knew it was over then at that point,” she said.

“I couldn’t watch anymore. I couldn’t believe that I was there watching this, carrying our first baby. I was a widow and I watched it and there was nothing I could do.”

But, incredibly, Pasquale Buzzelli began to freefall down the stairwell until he landed on the seventh floor. He regained consciousness three hours later, surrounded by twisted metal, with a badly injured ankle.

“I was totally numb,” he said.

“I felt nothing at all. I just opened my eyes and saw blue sky. I really thought I was dead until I started to cough and I started to feel pain in my leg. At that point I started calling out: <<Help. Help.>>”

Back at Ground Zero, firefighters Mike Lyons and Mike Moribito, who disobeyed orders to search the wreckage, found Pasquale Buzzelli as he was beginning to fear he would be burnt alive.

“He looked like he was in a castle,” said Mike Moribito.

“He was sitting there in broad daylight like a king on top of a hill. I can remember it as clear as day.”

Within hours Paquale Buzzelli was in an ambulance on his way to hospital. His first thought was to call his wife Louise.

“I picked up the phone and said: <<Hello?>>” she said.

“I heard his voice and he said: <<Louise it’s me>>. And I said: <<Oh my god Pascale. It’s you>>. And everyone in the house just screamed.”

However, Pasquale Buzzelli began to suffer from survivors’ guilt and it was only a reunion with Mike Lyons, who was also suffered traumatic stress disorder that brought him out of his depression. Mike Lyons’ girlfriend Kathryn traced Pasquale Buzzelli and they now meet regularly.

“Time heals all wounds and you start to experience joy,” he said.

“With the birth of Mia I was finally able to experience those feelings and not feel guilt. In that sense I’ve realized that the best way to honor those that didn’t make it, is tot be the best person that I can be.”

9/11 The Miracle Survivor is screened on Channel 4 at 10:00 p.m. on Monday September 10 and 11:10 p.m. the following night. An e-book We All Fall Down: The True Story of the 9/11 Surfer by Pasquale and Louise Buzzelli is published on Amazon on September 8.

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