Cardiff have released a statement to express their "shock" at reports Emiliano Sala's pilot David Ibbotson was not permitted to fly at night.
According to reports Ibbotson is thought to have been colour-blind, and his licence restricted him to flying in daytime hours only. Sala died when the plane carrying him from Nantes to Cardiff crashed late on January 21.
The UK Civil Aviation Authority (CAA) said it could not comment, but Cardiff have issued their reaction to such reports."Cardiff City is shocked to hear the pilot, David Ibbotson, may not have been permitted to fly at night," a statement read.
"The club remains deeply concerned that the pilot, and those who arranged the flight, seemingly completely disregarded the rules of flying and put Mr Sala's life in such danger.