Can anybody confirm the MTOW given on the aircraft's Noise Certificate as this is the key to understanding the issue?
If the Noise certificate states 66900 then, even with the SB applied, then I don't see how the aircraft could be operated at a higher weight without the IAA having issued a new Noise Certificate at the higher weight. If the Noise Certificate states 74990 then clearly RYN should be reporting this as the MTOW to the likes of Eurocontrol.