An American Airlines flight was canceled after the door fell off due to a 'jet bridge malfunction'

• An American Airlines flight from Dublin to Philadelphia was canceled Sunday.
• Images on social media showed its door had fallen off.

An American Airlines flight heading to Philadephia was canceled Sunday after its door fell off while preparing to depart from Dublin Airport.

Images shared on Twitter appear to show the Boeing 787 with a hole where the door should be — and the door on the tarmac below.

An Aer Lingus-branded jet bridge can be seen positioned below the door-hole in the fuselage, and other social-media pictures of the incident appear to show fire trucks attending the incident.

In a statement shared with Insider, an American Airlines spokesperson said nobody was onboard at the time, and the damage was caused by a "jet bridge malfunction."

Jet bridges are usually fixed to the airport terminal gate but need to be moved to allow aircraft to approach, and then extended back out for passengers. Some designs can also be moved left, right, up, and down by a trained operator with a control panel.

The Boeing Dreamliner registered as N812AA was due to depart for Philadelphia around two hours after it landed from Chicago — before the door was ripped off and the flight canceled, data from Flightradar24 shows.

"An American Airlines aircraft was damaged due to a jetbridge malfunction at Dublin Airport (DUB). No customers or crew were on board at the time and there were no reported injuries," said a spokesperson for the airline.

"We sent a replacement aircraft to operate the affected flight which is now expected to depart this afternoon. We apologize to our customers for the inconvenience and thank our team for their professionalism."

Dublin Airport declined to comment when contacted ny Insider.