Air Tanzania is one of the airlines listed on the EU Air safety list, which outlines companies that are not allowed to operate flights in Europe.
The EU Air Safety List is a roster of airlines that do not meet the necessary international safety standards and therefore face either operational restrictions or a complete ban from flying within the European Union.
To be included on this list, airlines are assessed based on inspections carried out by aviation authorities in their home countries, as well as their overall track record on air travel safety.
This means that Air Tanzania is not permitted to fly within the EU, even though the national carrier does not operate any flights in the European Union Zone.
IGIHE
Source : https://en.igihe.com/news/article/eu-bans-air-tanzania-flights-over-safety-concerns