Advice please. Are the black lines walkways
[img]blob:https://www.pprune.org/eefb2022-c21d-4de8-9472-6d3786074155[/img]
Are the black lines on this Boeing 777 non slip walk ways. Or do they serve some other purpose. A PPL friend of mine wishes to know and I can’t answer him.
Thanks for your time and trouble.
Be lucky
David