The rundown plane of the Gremlin's Airline.
Gremlin Airline's plane is a derelict plane used by the airline to transport monsters to several locations worldwide.
It's in bad shape because the gremlins crash it every time. It has broken windows, a crumbling floor, backfiring engines, mouldy seats, and parts of the hull are scrapes of metal barely held together with duct tape. Even in its rundown shape, it is still capable of maintaining flight.
The plane is based on the Douglas airplane in the WW2 era.