fitted new electrical back box
Sue while doing up the back bedroom noticed a double electrical socket was loose.
I had a look and found one of the "tangs" side lugs was broken on the back box. So I disconnected the wiring to the socket and removed to old back box.
Having got a couple of new back boxes I refitted one of them .I noticed the plaster wall had not been cut back enough causing the problem.
So now it is all back and working ok.
new back box showing side lugs
very easy way to do a check is get one of these
never had anything like that when I was an apprentice