GEN 1.5  Aircraft Instruments, Equipment and Flight Documents

1.5.1  EQUIPMENT OF AIRCRAFT BY SSR TRANSPONDER

1.5.1.1  Equipment of Aircraft by SSR Mode S Transponder
1.5.1.1.1  Equipment of Aircraft by SSR Mode S Transponder with Enhanced Surveillance functionality

The carriage and operation of Mode S transponders with Enhanced Surveillance functionality (EHS) is mandatory in the FIR Praha for fixed-wing aircraft operating IFR flights with maximum approved take-off mass exceeding 5700 kg or with maximum true airspeed exceeding 250 kt (463 km/h).

1.5.1.1.2   Equipment of Aircraft by SSR Mode S Transponder with Elementary Surveillance functionality

The carriage and operation of Mode S level 2 transponders with Elementary Surveillance functionality (ELS) (including SI-code) is mandatory for aircraft operating IFR and VFR flights in airspace defined below:

  1. IFR flights in the FIR Praha:

    1. helicopters disregarding MTOW;

    2. aeroplanes with maximum approved take-off mass 5700 kg or less, or with maximum true airspeed 250 kt (463 km/h) or less;

  2.  

  3.  

1.5.1.2  Equipment of Aircraft by SSR Transponder with a Mode A with Mode C pressure-altitude reporting
1.5.1.2.1 The carriage of SSR Transponder capable to reply to Mode A interrogations on 4096 codes with Mode C pressure-altitude reporting is mandatory in FIR Praha below FL 95 (with exemption of the TMA Praha / CTR Ruzyně) for aircraft operating the following flights:

  1. all powered aircraft and balloons operating VFR flights at or above FL 60, or altitude at or above 5000 ft (1500 m) AMSL, if transition level is FL 70,

  2. all aircraft operating VFR en-route flights at night.

  3. all aircraft operating VFR flights at MTMA/MCTR Kbely.

1.5.1.3  Exemptions
1.5.1.3.1 Exemptions from the requirement to carry a SSR mode S ELS transponder is hereby granted to the aircraft operators for the flights of balloons and airships in the CTR Ruzyně.
1.5.1.3.2 The following exemptions will be granted on a case-by-case basis, are only temporary in nature and will be reviewed and redefined as necessary:

  1. Exemptions from Mode S ELS/EHS: for single flights conducted for the purposes of flight-testing, or delivery, and transit into and out of maintenance bases,

  2. Exemptions from Mode S EHS: for aircraft equipped with SSR Mode S transponder but where the avionics do not permit the extraction and transmission of the full set of required Downlink Aircraft Parameters (DAPs) or when an exemption from the requirement is granted for a specific purpose.

1.5.1.3.3 Aircraft provided with the exemption from the requirement to carry a Mode S ELS transponder shall be equipped with SSR transponder capable to reply to Mode A interrogations on 4096 codes with Mode C pressure-altitude reporting.
1.5.1.3.4 An exemption from mandatory carriage of Mode A/C transponder can be approved by the respective ATC unit with regards to traffic situation on crew’s request prior to entering its area of responsibility.
1.5.1.3.5 State aircraft which are not equipped with an SSR mode ELS/EHS transponder are permanently exempted from SSR Mode ELS/EHS transponder equipment obligation. Obligation to be equipped with an A/C transponder is valid for state aircraft anyway.

1.5.2  Automatic Dependent Surveillance - Broadcast (ADS-B)

1.5.2.1  ADS-B equipage requirements
1.5.2.1.1 In accordance with the Commission (EU) implementing regulation, ADS-B equipment is required for flights in FIR Praha. The requirements for ADS-B OUT equipage can be found in the European Commission Implementing Regulation (EU) 1207/2011 and subsequent amendments. All data items provided, even those over and above what is specified by the regulation, shall be verified.
1.5.2.2  ADS-B system requirements
1.5.2.2.1 For aircraft required to equip with ADS-B OUT per European Commission Implementing Regulation (EU) No 1207/2011 and subsequent amendments the applicable requirements are European Aviation Safety Agency (EASA) CS ACNS Subpart D, Section 4.
1.5.2.2.2 For aircraft not required to equip with ADS-B OUT per European Commission Implementing Regulation (EU) No 1207/2011 and subsequent amendments the ADS-B OUT systems shall comply with one of the standards below:

  1. European Aviation Safety Agency (EASA) CS ACNS Subpart D, Section 4; or

  2. Federal Aviation Administration (FAA) Title 14 Code of Federal Regulations (14 CFR) section 91.227 or AC No 20-165B (or replacement) - Airworthiness Approval of ADS-B; or

  3. European Aviation Safety Agency (EASA) CS-STAN.

1.5.2.2.2.1 Owners of ADS-B OUT systems that are unable to meet the requirements above, must:

  1. Ensure that the aircraft always transmits a value of 0 (zero) for one or more of the following position quality indicators: NUCp (only for ADS-B version 0 units), NIC and/or SIL, or

  2. disable ADS-B transmission.

1.5.2.3  Exceptions
1.5.2.3.1 State aircraft are exempted from the ADS-B equipment obligation, but the A/C mode transponder equipment obligation applies, as specified in article GEN 1.5 para 1.3.5.

1.5.3  RADIO EQUIPMENT REQUIREMENTS

1.5.3.1  Equipment of Aircraft by 8.33 kHz channel spacing radio
1.5.3.1.1 In accordance with the requirements of the ICAO Doc 7030 and Commission Implementing Regulation (EU) No. 1079/2012 of 16 November 2012, laying down requirements for voice channels spacing, the carriage and operation of 8.33 kHz channel spacing VHF COM radio equipment is mandatory from FL 0 above. The measure applies to all frequencies operating in the airspace of the Czech Republic.
1.5.3.1.2 Aircraft not carrying 8.33 kHz spacing radio equipment cannot enter the airspace of the Czech Republic.
1.5.3.1.3 Aircraft operating under IFR in the airspace of the Czech Republic shall be equipped with at least two VHF COM radio communication systems for two-way communication, including backup devices for listening and broadcasting with channels spacing 8.33 kHz.
1.5.3.2  Exceptions
1.5.3.2.1 State aircraft which are infrequent users of the Czech airspace are permanently exempted from the 8.33 kHz channel spacing carriage requirement, provided that they are able to communicate using UHF.

Note: Infrequent user is one defined as not exceeding about 30 hours flying time per aircraft per year in the 8.33 airspace.

1.5.3.2.1.1 Uncontrolled VFR flights of 8.33 non-equipped state aircraft intending to enter the CTR Ruzyně or TMA Praha, are obliged to request current information about the operational UHF frequency of the appropriate ATS Unit (i.e. Ruzyne TWR or Praha APP) from Praha FIC at least 15 minutes before they enter the ATS airspace concerned.
1.5.3.2.1.2 Uncontrolled VFR flights of state aircraft that are not equipped with a radio station with 8.33 kHz channel separation and intend to enter the CTR Karlovy Vary, CTR Mošnov, CTR Tuřany or TMA Karlovy Vary, TMA Ostrava, TMA Brno, are obliged to inform the Praha FIC unit of their intention to communicate with the appropriate TWR unit on the reserve frequency 119.700 MHz at least 5 minutes before entering these ATS airspaces.
1.5.3.2.1.3 The flights of 8.33 non-equipped state aircraft intending to depart from LKPR or from an aerodrome located within the CTR Ruzyně, are obliged to request by phone Ruzyne TWR for current information about the operational UHF frequency and call sign of the appropriate ATS unit at least 15 minutes before they ask for the start-up approval, except they have received the information for the departure during their arrival.
1.5.3.2.1.4 Flights state aircraft that are not equipped with a radio station with 8.33 kHz channel separation and intend to depart from LKKV, LKMT, LKTB or from an aerodrome located within the appropriate CTR, are obliged to inform the locally appropriate TWR by phone of their intention to communicate on the reserve frequency 119.700 MHz at least 5 minutes before the expected request for start-up approval, unless they have already transmitted this information upon arrival.
1.5.3.3  Requirements for FM Broadcast immunity of airborne receivers
1.5.3.3.1 In the FIR Praha, aircraft with NAV equipment not complying with the applicable interference immunity performance requirements for ILS localiser and VOR receiving systems (ref. ICAO Annex 10, Vol. I., paragraphs 3.1.4. and 3.3.8) are not allowed to continue to operate after 1st January 2001.

Výjimka: State Aircraft with NAV equipment not complying with above referred ICAO standards may continue operations within the FIR Praha with the proviso, that they are equipped with suitable other RNAV equipment (meeting RNP 5 in accordance with ICAO Doc 7030 Regional Supplementary Procedures, EUR-RAC Section 15), for the en-route part of the flight.

1.5.3.3.2 In the FIR Praha, up to now no interference problems have been detected and there have been no areas identified within the services volumes of ILS and VOR equipment, where interference to less immune aircraft receivers was above the present ICAO Annex 10 limits. Nevertheless, users are requested to report to the:
Post:

Ministry of Transport
Civil Aviation Department
nábřeží Ludvíka Svobody 12
P.O.Box 9
110 15 Praha 1

any interference problems possibly experienced during their operations within the FIR Praha. The report should include the following information:

  1. frequency on which interference was experienced

  2. position and level / height of the aircraft

  3. aircraft registration mark

  4. date and time (UTC) of the experienced interference

  5. description of the interfering signal (e.g. music, speech, language, other noise, etc.)

1.5.4  THE MANDATORY CARRIAGE AND OPERATION OF ACAS II IN THE AIRSPACE OF THE CZECH REPUBLIC

1.5.4.1 All civil fixed-wing turbine-engined aircraft operating in the airspace of the Czech Republic, having a maximum take-off mass exceeding 5700 kg or maximum approved passenger seating configuration of more than 19, must be equipped with ACAS II.

1.5.5  RVSM REQUIREMENTS

1.5.5.1 Except for designated airspace where RVSM transition tasks are carried out, only RVSM approved aircraft and non-RVSM approved State aircraft shall be permitted to operate within the EUR RVSM airspace.
1.5.5.2  RVSM approved aircraft are those aircraft for which the Operator has obtained and RVSM approval, either from the State in which the operator is based, or from the State in which the aircraft is registered.
1.5.5.3 Guidance material on the airworthiness, continued airworthiness and the operational practices and procedures for the EUR RVSM airspace is provided in the Join Aviation Authorities (JAA) Temporary Guidance Leaflet (TGL) Number 6, Revision 1, and the ICAO EUR Regional Supplementary Procedures (Doc 7030/4 - EUR).
1.5.5.4 Except for State aircraft, RVSM approval is required for aircraft to operate in the RVSM airspace within the FIR Praha, as described in ENR 2.1.

Note: The provisions applicable to non-RVSM approved civil operations in EUR RVSM airspace where RVSM transition tasks are carried out are as specified in the ICAO EUR Regional Supplementary Procedures (Doc 7030/4 - EUR).

1.5.6  Performance based navigation (PBN)

1.5.6.1 Other than state aircraft operating according IFR rules within the FIR Praha above FL95 shall be equipped for operations according to the specification RNAV-5 in accordance with the requirements specified in the ICAO Doc 7030 Regional supplementary procedures. Requirements for equipment for , STAR and approach procedures are given in the AD part for each aerodrome.