I am waiting for what is technically my first flight with LATAM Airlines, on the route from Frankfurt to Madrid. The aircraft has been substituted for an A330 operated by Wamos Airlines, which I've never heard of. So unfortunately I won't be able to experience the Boeing 787 Dreamliner today which LATAM operates on this 5th freedom route, which continues on to Santiago.

Are these sorts of irregularities common with LATAM? Could it be that the Wamos Airlines aircraft is deployed only for the FRA-MAD sector and LATAM takes over for the MAD-SCL sector? All I could find out is that Wamos Airlines is Madrid based, and most of their aircraft seem to be used by Saudia and El Al.

https://en.m.wikipedia.org/wiki/Wamos_Air