The other end - no, they are the famous slats, like an old xpelair kitchen fan, and an ideal way to lose a finger or two, they used to pop open/closed depending on the thermostat, but this wasnt reliable and you can manually open/close them
The end closer to the camera housed the electronics, a lot of which was removed in the refurbishment, so not sure if access from outside was needed anymore, but any major repair work I've seen lately has seen the items craned in/out from above