Here are the scheduled Tube system repairs for this weekend.
A nice quiet spell, apart from some headaches getting to or from Heathrow.
A chunk of the District Line, some of London Overground and a hefty section of the Piccadilly line. The recommendation for getting to LHR is to take the Central Line to Ealing B’way, take a bus to skip past the downed segment and then take the Piccadilly line from Boston Manor.
My alternative would be… cough up £20 and take the 15 minute Heathrow Express from Paddington or, for less than half that price, Heathrow Connect makes the trip in roughly half an hour also from Paddington with only a few stops along the way. It’s up to you.