ENR 1.12  Interception of civil aircraft

1   SERA.11015

1.1  Interception of civil aircraft in Republic of Slovenia is governed by national regulation Decree on air traffic control arrangements (Decree on air traffic control arrangements, Official Gazette, No. 29/04 and 46/15) in compliance with Regulation 923/2012/EU as amended by Regulation 2016/1185/EU, the Convention on International Civil Aviation, Chapter 3, 3.8 of the Annex 2 and Attachment A of that Annex.
1.2  The pilot-in-command of a civil aircraft, when intercepted, shall comply with the Regulation 923/2012/EU as amended by Regulation 2016/1185/EU, Section 11, SERA.11015.

2   Principles observed by Republic of Slovenia

2.1  To achieve the uniformity in regulations which is necessary for the safety of navigation of civil aircraft due regard Republic of Slovenia in national regulation Decree on air traffic control arrangements consider the following principles:
  1. interception of civil aircraft will be undertaken only as a last resort to prevent airspace infringement
  2. if undertaken, an interception will be limited to determining the identity of the aircraft, unless it is necessary to return the aircraft to its planned track, direct it beyond the boundaries of national airspace, guide it away from a prohibited, restricted or danger area or instruct it to effect a landing at a designated aerodrome
  3. practice interception of civil aircraft will not be undertaken
  4. navigational guidance and related information will be given to an intercepted aircraft by radiotelephony, whenever radio contact can be established; and
  5. in the case where an intercepted civil aircraft is required to land in the territory overflown, the aerodrome designated for the landing is to be suitable for the safe landing of the aircraft type concerned

3   Action by intercepted aircraft

3.1  The pilot-in-command of a civil aircraft, when intercepted, shall:
  1. immediately follow the instructions given by the intercepting aircraft, interpreting and responding to visual signals in accordance with the specifications in Tables S11-1 and S11-2;
  2. notify, if possible, the appropriate air traffic services unit
  3. attempt to establish radio communication with the intercepting aircraft or with the appropriate intercept control unit, by making a general call on the emergency frequency 121.500 MHz, giving the identity of the intercepted aircraft and the nature of the flight; and if no contact has been established and if practicable, repeating this call on the emergency frequency 243 MHz;
  4. if equipped with SSR transponder, select Mode A, Code 7700, unless otherwise instructed by the appropriate air traffic services unit
  5. if equipped with ADS-B or ADS-C, select the appropriate emergency functionality, if available, unless otherwise instructed by the appropriate air traffic services unit.
3.2  If any instructions received by radio from any sources conflict with those given by the intercepting aircraft by visual signals according to Tables S11-1 and S11-2, the intercepted aircraft shall request immediate clarification while continuing to comply with the visual instructions given by the intercepting aircraft.
If any instructions received by radio from any sources conflict with those given by the intercepting aircraft by radio, the intercepted aircraft shall request immediate clarification while continuing to comply with the radio instructions given by the intercepting aircraft.
Upon observing or receiving any of the signals given in table below, aircraft shall take such action as may be required by the interpretation of the signal given in that table.
Note: see tables S11-1 Signals initiated by intercepting aircraft and responses by intercepted aircraft and S11-2 Signals initiated by intercepted aircraft and responses by intercepting aircraft


4   Radio communication during interception

If radio contact is established during interception but communication in a common language is not possible, attempts shall be made to convey instructions, acknowledgement of instructions and essential information by using the phrases and pronunciations in Table S11-3 and transmitting each phrase twice: