By Amber Henshaw
BBC News, Khartoum
An investigation is taking place into the cause of the crash in June
Sudan's national airline has been warned that all of its flights will be suspended from Monday for failing to comply with aviation requirements.
Sudan Airways has been told that it will not be allowed to fly unless it undertakes certain measures.
It comes less than two weeks after a Sudan Airways plane burst into flames after landing, killing 30 people.
The Civil Aviation Authority said the decision had nothing to do with the accident on 10 June.
Its director of safety and flight operations, Mohamed Hassan al-Mujammar, said Sudan Airways had failed to undertake measures outlined by the authority in an annual audit carried out at the end of May.
He said it was time to stop this type of non-compliance with international standards.
As a result the company's Air Operators Certificate has been suspended from Monday, which will affect all international and domestic flights.
Mr Mujammar said the national carrier said it had been too preoccupied by the crash to take the actions urged by the CAA.
The airline has one month to appeal against the suspension or to carry out the necessary improvements.
No-one was available for comment from Sudan Airways.
An investigation into what caused the accident at Khartoum International Airport on 10 June is under way.
Sudan has a poor reputation for air safety, especially on domestic flights.