The view from the manhole. Not such a good start...

The chimney appears to have lost about three layers of bricks.

Many of them have fallen down into the wall cavity and left a crack in the wall that's visible on the other side.
I counted eleven bricks down there.

A few that fell onto the ceiling. I just checked under there and yes there is a small crack.

More bricks, these are over the kitchen ceiling near the hallway door.
There is a large crack under them, they must have nearly fallen through.