What are these grey squares

Dear friends, who can explain what are these grey squares around the doors, they are met with plenty of aircrafts. Any ideas?

1 Like

Marks from the jetway, the rubber square at the end of them leaves marks

6 Likes

They are from the seals on jetways, they are almost air tight to the aircraft when attached leading to these marks after the aircraft has been in service for a few years

1 Like

Oh! I see! Thank you very much!!!

hahaha thats actually some hilarious find, nice spot