As a fellow aviation industry employee travelling back from sunnier climes aboard a charter(name not mentioned) nearly 24 hours late due to a nose wheel change... It was obvious to the eye that the replacement tyre was not a match to the the other. This was in height and also Girth(excuse the pun). After a long discussion around it by the co- and a ground engineer the flight departed. The question I have to raise is . Are tyres of different sizes used and what safety issues does this entail??
