All members of this forum should know my inherent dislike of auto-installers by now. Too many designers do not know the best way of installing aircraft themselves so they're hardly likely to be capable of configuring an auto-install package.
This might sound strange but I've been configuring my own files & those for other designers as auto-extract for some years now. They were so popular at one time that not doing so meant that nobody downloaded the files, particularly CFS & CFS2 campaigns which are notoriously difficult to install.
As this started with the Beverley that Roger mentioned I decided to check it out myself. The package is in 3 parts but I only had time to get the aircraft itself. I would never use an auto-install package without having full trust in the guy who configured it. Therefore, I did the usual thing with this package & redirected the install path to a Temp folder & installed it manually. This proves there's nothing wrong with the aircraft.

I suspect this is the cause of the problem.

The default extract path is not directed to the FS2002 root folder as usual. This means that a new folder named Beverley will be created in FS2002\AIRCRAFT. If you redirect it to a different directory you
must manually add the extra AIRCRAFT\Beverley entries to the end of the path or the files will not install correctly.
Roger. I will help in any way I can. Just tell me & I can investigate & give you an idea of which files to search for. Or mail me here
DAttrell@aol.com