The US military cargo plane, whose hold filled with Afghans evacuating their country was captured in a now famous photo, flew more than 800 people on board – far more than originally confirmed by the Air Force, according to the crew who flew the mission.

The crew of a C-17 US military cargo plane flew 823 people out of Kabul on an evacuation flight on Aug. 15, the crew said in an interview Friday on CNN’s New Day. It was previously believed that the plane carried 640 people on it.

The photo of Afghans sitting shoulder-to-shoulder, packed into the hold, went viral after it was published by Defense One.

The massive number of people is a record to fly on the US Air Force’s C-17 Globemaster III, a military plane that can be used to carry both cargo and passengers when needed, US Air Force spokesperson Hope Cronin said. The C-17 has been in operation for almost three decades. 

“Our 640 number was a little underestimated, we actually carried 823 out,” Technical Sergeant Justin Triola, one of the plane’s crew members, said.

A radio transmission of the crew with air traffic control highlights how extraordinary the flight was. When the pilot informed air traffic control of how many people were on board, the response was “holy hell.”

When the plane is being used to transport passengers, there are several configurations the plane’s crew can use to transport different numbers of people, ranging from 10 to 336 people at a time.

It is always at the discretion of the aircraft commander to determine what they can transport at any given time, Cronin said. 

The previous record of people flown on a C-17 was 670 people that were flown out by the US Air Force after Typhoon Haiyan hit the Philippines in 2013. 

Lieutenant Colonel and C-17 Aircraft Commander Eric Kut, who authorized the mission to fly those people to safety, said they are “trained to handle that, to max perform that aircraft.”

Crew members of the C-17 that flew the 823 people to safety include Kut, Triola, Airman First Class Nicolas Baron, Captain Cory Jackson, First Lieutenant Mark Lawson, Staff Sergeant Derek Laurent and Senior Airman Richard Johnson. 

“We have women and children and people’s lives at stake, it’s not about capacity, or rules and regulations, it’s about the training and the directives that we were able to handle to make sure that we could safely and effectively get that many people out and max perform those efforts,” Kut said.

Triola said the people on board the plane were “definitely anxious to get out of the area, and we were happy to accommodate them.” 

“They were definitely excited once we were airborne,” he added.