On 28 September 2022, a Boeing 777-300 taxiing for departure at London Heathrow collided with an arriving Boeing 757, which had turned onto its assigned gate prior to the stand entry guidance system being available without informing ATC. The 757 was taxiing as cleared, following the illuminated taxiway centreline lighting. The airport AIP entry stated that in the absence of stand entry guidance, aircraft must remain on the taxiway centreline. The Investigation noted that lack of stand entry guidance is a common occurrence at this airport and needs to be addressed by all those involved.