WASHINGTON – Passengers aboard United Airlines Flight 93 fought back against the hijackers but never actually made it into the cockpit, the Sept. 11 commission concluded.

The assertion, included in the panel’s dramatic summary of the harrowing flight, contradicts the firmly held belief by some victims’ families that passengers breached the cockpit and fought with hijackers inside during their final moments.

In phone calls from the plane, four passengers said they and others planned to fight the hijackers after learning of the attacks on the World Trade Center in New York earlier that morning.

With the words “Let’s roll,” passengers rushed down the airliner’s narrow aisle to try to overwhelm the hijackers.

Relying on the cockpit recorder and flight data, the commission said terrorist-pilot Ziad Jarrah violently rocked the jet’s wings and told another hijacker to block the door. With the sounds of fighting outside the cockpit, Jarrah asked, “Is that it? Shall we finish it off?”

Another hijacker, who wasn’t identified, replied, “No, not yet. When they all come, we finish it off.”

Jarrah then began pitching the nose of the plane up and down to throw passengers off balance.

Seconds later, a passenger who wasn’t identified yelled, “In the cockpit! If we don’t, we die!” And 16 seconds later, another passenger yelled, “Roll it!” Investigators previously have said they believe passengers tried to use a food cart to break down the cockpit door.

Jarrah said, “Allah is the greatest! Allah is the greatest!” and asked his fellow hijacker, “Is that it? I mean, shall we put it down?”

The other hijacker answered, “Yes, put it in, and pull it down.”

Roughly 90 seconds later, the jet rolled onto its back and crashed into a Pennsylvania field at more than 580 mph, killing everyone aboard.