Hello,
I sent a support ticket but didn’t recieve any reply so I’ll post here. It’s quite bothering me haha.
I started an airline in Bosnia and Herzegovina and aircraft registrations are assigned to start as T9- which is wrong, because B&H changed country national registration to E7- like 10 years ago.
Take a look at the a/c register of the national aviation agency: http://www.bhdca.gov.ba/english/dokumenti/airworthiness/BiH%20Aircraft%20Register_eng.pdf
Here is a pic of an ATR with old and new registration (airline went bankrupt like 7 years ago tho):