Piccadilly Line: No service between Rayners Lane and Uxbridge due to difficult track conditions caused by significant leaf fall. Please use the Metropolitan line to complete your journey. SEVERE DELAYS between Acton Town and Heathrow Airport while we fix a signal failure at Hounslow West. SEVERE DELAYS between Acton Town and Rayners Lane and Minor delays on the rest of the line due to a shortage of trains.Tickets will be accepted on London buses and Elizabeth line.