Seriously rusty 66510 passes Fritwell on 29 March 2025 with the 6Y66 09:45 Bescot Up Engineers Sidings to Haddenham & Thame Parkway ballast. The Chiltern Line was closed further south for extensive engineering works. There were a total of eight trains from Bescot throughout the day, but only three in daylight, and only this one at a decent time of day. This section of line does not normally have any booked freight trains.