A Japan Airlines flight couldn't take off from Los Angeles International Airport, USA, on Monday because it was carrying a bit more luggage than expected.
A big metal luggage container was stuck in its engine, meaning the plane had to stay on the ground.
The accident happened when the aircraft was preparing for take-off. Experts reckon the metal box might have been pulled into the engine because it was parked too close to the plane.
It caused a bit of delay, but no-one was hurt in the incident.