If you encounter this exception:
System.Data.SqlClient.SqlException Violation of PRIMARY KEY constraint 'PK_Aircraft'. Cannot insert duplicate key in object 'dbo.Aircraft'. The duplicate key value is ([Your Registration Number]).
This problem occurs because the aircraft already exists in the database.
If you have both Blue MRO and Blue EYE, the aircraft was created first in Blue MRO instead of Blue EYE, so it creates a conflict.
If you wish to transfer the aircraft from Blue MRO to Blue EYE, you can send us a request and we will be happy to do so.