Lots of stock and crews going on at Earl's Court throughout the day as Edgware Road trains ended up in 1 and Upminster/Tower Hill trains in 2... assuming therefore the problem was with the various points east of the station (i.e. the ones being replaced, I forget the numbers...)?
Worth noting it also took out the Circle for an hour or so at the start of traffic and had knock-on effects on the H&C service too.
Because Circle and H&C stable trains at Ealing Common and Upminster and Barking. So if the District has problems the Circle and H&C will be short of trains.
Pre-made sets of points incorrectly installed and failing to operate when tested.
Care to elaborate?
Well, as decaded hasn't decided to elaborate I probably should set the record straight.
The points were not incorrectly installed, nor did they fail to operate on test. However, an element of the programme ran late, without enough time to fully test the alterations to the signalling. As there was insufficient time to test the points (and some of the other alterations), they had to be secured normal until they could be tested, which took place over the following three nights. When they were tested they operated correctly.
Why do I know this? Because I was there. In fact, I was the Tester in Charge, and I was the one who made the decision to secure the points out of use and run the split service for two days.