De-registration of an aircraft

To de-register an aircraft, the following documentation is required:

  • Application for de-registration of aircraft (AIR.OBR-95) and payment of the Tariff for the service implementation of the Civil Aviation Agency of the Republic of Slovenia, based on the Agency's invoice;
  • A statement that nationality, registration marks, flag, ICAO identification code (Mode S ATC Transponder in Emergency Locator Transmitter – ELT), have been removed from the aircraft (registration mark and flag);
  • The original documents, such as Certificate of Airworthiness, Certificate of Registration, and Permit to fly shall be returned;
  • In case of mortgage/other legal facts – explicit statement by the mortgagee consenting to the deletion.  The signature on the document must be notarised (certification in accordance with the General Administrative Procedure Act or under international document certification regulations);
  • In the case of lease agreement – explicit statement by the operator consenting to the deletion. The signature on the document must be notarised (certification in accordance with the General Administrative Procedure Act or under international document certification regulations);
  • If the aircraft is damaged or has become permanently  unworthy: proof (statement by the applicant that the aircraft is  damaged or statement by an aircraft accident investigator which is to be obtained by the CAA on its own behalf);
  • If the applicant is the operator, explicit statement by the owner consenting to the deletion.  The signature on the document must be notarised (certification in accordance with the General Administrative Procedure Act or under international document certification regulations).


The Agency shall  de-register an aircraft from ex officio in accordance with Paragraph 50 of the Aviation Act:

  • If the aircraft has not obtained a Certificate of Airworthiness within six months of registration;
  • If the aircraft did not have a valid Certificate of Airworthiness during the last three years and
  • If – the aircraft is destroyed or lost and the search process is concluded according to the aircraft accident investigator’s final report is concluded.