If you were correct A350Saltire, then the airline would have planned for this, and likely not as a one off. Maintenance/aircraft availability more likely, or possibly even a large freight load (cube, not weight, as i think EDI would be weight limited at departure). Unless of course its a large inbound freight load, less likely for an ME3.
I understand a search is underway for an A340 towbar.
Would have thought the bar common to A330, it seems not.
Anyway, think your upgauge theory is wrong. Sorry.
Last edited by OntimeexceptACARS; 24th Jul 2016 at 11:13.
Reason: Inbound freight mentioned