It would all depend on the type of aircraft.
737 for instance, OWE doors are spring loaded and open easy as pie, the hard part is pulling them back in to close them, not an easy job.
767's only tank body builder type should be sitted on the OWE door, thoes doors come right out, and they are not light, you talking about a door that at a guess is an easy 20kg-40kg Last time I pulled one out, it came inside the aircraft to be worked on, was not an easy job!