Kent Online claimed that the presenting duo were filming titles for the upcoming series of ITV's Britain's Got Talent when the incident occurred.
Plasterer Jim O'Cock detailed how the hot air balloon had crash landed with a 'resounding bump' after it apparently ran out of fuel over Maidstone.
The 42-year-old recalled how he and several others had run to the aid of McPartlin and Donnelly as they observed the balloon fall "out of the sky".
He said: "They were absolutely lovely people, so down to earth. I told Ant he looked a bit shaken after the balloon landed, but his reply isn't printable. They said Kent looked lovely from above and asked about the oast houses we're working on because they'd never seen one before."
However, writing on their Twitter account, Hackford Jones PR stated: "Stories currently running on line saying Ant & Dec had a hot air balloon crash whilst filming 'BGT' are completely untrue. (sic)"
The Geordie duo recently said that the new series of the talent competition "feels fresh", with the new-look judging panel featuring Michael McIntyre and David Hasselhoff.
Britain's Got Talent is expected to return to ITV1 later in the spring.
> Ant & Dec: 'Talent fun without Cowell, Morgan'