I came across the steery bit (bridge?) and noticed a stream of water coming in through the window.
Water usually flooded into the aircraft on the take-off run after it had been sat on the ground for a while at a wet Lossie. Sadly, the usual ingress in the mission crew area was directly over a cabinet called the "High-Voltage Power Pack" (top right hand side in the picture above) and had a suitable danger warning painted on it. Also sadly, in the event of radar problems (which could be frequent), one of the check list items was to check the fuse inside the said box: the fuse usually had to be prised out of its holder with a screwdriver, which wasn't much fun when water had been dripping over it for a considerable period. At least we didn't have health & Safety breathing down our necks in those days!
Wearing immersion suit usually kept most of the water out though!
