(26 Jun 2026, 10:45 pm)Shrek wrote Is 1505 staying on for a while? It's still in Max livery which made me think it was close to retirement, but there's an NSA screen on it now. From a passenger perspective it still seems decent, clean and engine sounds smooth.

Anything staying beyond the 1st October 2026 needs them. It's a new regulation which is coming in where every service bus must have them. Not sure if you knew. 

Realistically anything 61 plate onwards is going to get them I'd guess. Older than that, then it's guesswork.