An unspecified technical problem forced the Rio-bound Boeing aircraft to turn back shortly after takeoff from Amsterdam. A spokesperson for Dutch air traffic control said the plane requested to land as a precaution and turned around over Belgium some 40 minutes after takeoff.
As @leetnewb says, nothing out of the extraordinary here. I think the issue is that it’s Boeing. It seems quite fashionable to find fault with them lately. Sometimes justifiably so. Maybe not in this case though unless we see multiple instances of the same model and fault.