On 4 February 2023, a Boeing 767-300 which had initiated a night go-around in freezing fog passed within 115 feet of a Boeing 737-700 taking off from the same runway. The aircraft had been respectively cleared to land and takeoff by the same controller but on sighting the 737 on the runway ahead, the 767 crew deemed a go around was necessary to avoid a ground collision. The experienced controller’s poor judgement was attributed to a combination of expectation bias, lack of awareness of a predictable delay to the 737’s departure and absence of any training in low visibility operations.