Hi FabienA380
Maybe my wording is not perfect!!
From the Test-Frames we saw in the past more as one A350 are flying during the same time.
From the delivered frames we also see more as one A350 are flying during the same time.
But from the flightline (delivery process) I think it was the first time that two A350
from different customers are in the air during the same time.
I hope you can now understand my statement.
Edit:
Qatar Airways and Singapore Airlines flying together today 11th February 2016
Qatar Airways and Vietnam Airlines (never seen before)
Qatar Airways and Finnair (never seen before)
Qatar Airways and TAM Airlines (never seen before)
Vietnam Airlines and Finnair (never seen before)
Vietnam Airlines and TAM Airlines (never seen before)
Vietnam Airlines and Singapore Airlines (never seen before)
Finnair and TAM Airlines (never seen before)
Finnair and Singapore Airlines (never seen before)
TAM Airlines and Singapore Airlines (never seen before)