Air Navigation Services of the Czech Republic, Aeronautical Information Service

Česky Contact

About us

Responsible services

The Aeronautical Information Service, which forms part of the Air Navigation Services of the C.R., ensures the flow of information necessary for safety, regularity and efficiency of international and national air navigation within the area of its responsibility as indicated under GEN 3.1.2. It consists of AIS Headquarters (publication, cartography, reprographic and distribution department), International NOTAM Office (NOF). At all Czech international aerodromes, where ATS is provided by ANS of the C.R., the function of AIS unit is delegated to Central ARO Prague (ATS Reporting Office).

Area of responsibility

The Aeronautical Information Service is responsible for the collection and dissemination of information for the entire territory of the Czech Republic and for the relevant airspace.

Aeronautical publications

The aeronautical information is provided in the form of the Integrated Aeronautical Information Package consisting of the following elements:

AIS also issues domestic aeronautical publications which are not part of the Integrated Aeronautical Information Package.

NOTAM and relevant monthly checklists are dissesminated through aeronautical fixed service (AFTN). PIB are made available at ARO units of aerodromes listed under para 3.1.5 AIP - GEN 3 or via AFTN (within the Czech Republic). Access via AFTN terminals is possible for individual users after their registration at the international NOTAM Office, where detailed information can be obtained. Procedures for utilissation of PIB services are part of the registration and are free of charge as well as the registration. Remaining elements of the aeronautical information package are distributed by mail.

Aeronautical charts

The Aeronautical Information Service produces the charts which are part of the AIP and other aeronautical charts (ANC 1:500 000). The charts are produced in accordance with the provisions contained in ICAO Annex 4 - Aeronautical Charts.

The aeronautical charts included in the AIP are kept up to date by amendments to the AIP. Corrections to aeronautical charts not contained in the AIP are promulgated by AIP Amendments and are listed under 3.2.8 AIP - GEN 3. Information concerning the planning for or issuance of new maps and charts is notified by Aeronautical Information Circular. If incorrect information detected on published charts is of operational significance, it is corrected by NOTAM.

Aeronautical chart series available

The following series of aeronautical charts are produced:

Data presentation on the internet

The Aeronautical Information Service presents data on the internet pages http://ais.ans.cz.

Contents of Internet pages:

Control elements (bars, buttons, ....) are in form of "html" pages, proper data are in "pdf" format. It is necessary to have the program Adobe Acrobat Reader to read these data.

Aeronautical Information Publication (AIP)

The AIP is the basic aviation document intended primarily to satisfy international requirements for the exchange of permanent aeronautical information and long duration temporary changes essential for air traffic.

AIP of the Czech Republic is published in three volumes and in a loose - leaf form with bilingual text in Czech and English for use in international and domestic operations, whether the flight is a commercial or a private one.

Amendment service to the AIP(AIP AMDT)

Amendments to the AIP are made by means of replacement sheets. Two types of AIP Amendments are produced:

- regular AIP Amendment (AIP AMDT), issued as often as practical and identified by a light blue cover sheet, on the indicated publication date incorporates permanent changes into the AIP previously published in NOTAM, or in certain cases in AIC, as well as minor editorial changes;

- AIRAC AIP Amendment (AIRAC AIP AMDT), issued in accordance with the AIRAC system and identified by a pink cover sheet and the acronym AIRAC, incorporates operationally significant permanent changes into the AIP on the indicated AIRAC effective date.

A brief description of the subjects affected by the amendment is given on the AIP Amendment cover sheet. New information included on the reprinted AIP pages is marked by a vertical line. The place of a deleted information is marked by a horizontal line.

All pages of an Amendment are clearly marked to indicate by which Amendment it was published and the publication date/AIRAC effective date. The date consists of the day, month (by name) and year of the publication date (regular AIP AMDT) or of the AIRAC effective date (AIRAC AIP AMDT) of the information. Each AIP amendment cover sheet includes references to the serial number of those elements, if any, of the Integrated Aeronautical Information Package which have been incorporated in the AIP by the amendment and are consequently cancelled.

AMDT and AIRAC AMDT are numbered successively and separately. AIRAC AMDT begins with number 1each year.

A checklist of AIP pages containing page number/chart title and the publication or effective date (day, month by name and year) of the information is reissued with each regular amendment and is an integral part of the AIP.

Note: Volume III. of AIP C.R. (A 5 page size) has separated amendment service. Amendments are marked VOL III - AMDT, VOLIII - AIRAC AMDT.

Supplement to the AIP (AIP SUP)

The temporary changes of long duration (three months and longer) and information of short duration which consists of extensive text and/or graphics, supplementing the permanent information contained in the AIP, are published as AIP Supplements (AIP SUP). Operationally significant temporary changes to the AIP are published in accordance with the AIRAC system and its established effective dates and are identified clearly by the acronym AIRAC AIP SUP.

AIP Supplements are published on yellow paper and are placed at the beginning of the AIP. AIP Supplements (regular or AIRAC) are numbered consecutively, beginning with number 1 each year.

An AIP Supplement is kept in the AIP as long as all or some of its contents remain valid. The period of validity of the information contained in the AIP Supplement will normally be given in the supplement itself. Alternatively, NOTAM may be used to indicate changes to the period of validity or cancellation of the supplement.

The checklist of AIP Supplements currently in force is issued on cover pages of regular AIP Amendments.

Note: The separate AIP SUP are issued for Volume III. of AIP C.R. (A5 page size). They are marked VOL III - AIP SUP, VOLIII - AIP AIRAC SUP.

NOTAM ande Pre-flight Information Bulletins (PIB)

NOTAM contains information concerning establishment, condition or change in any aeronautical facility, service, procedure or hazard, the timely knowledge of which is essential for personnel concerned with flight operations. Text of each NOTAM contains the information in the order shown in the ICAO NOTAM Format and is composed of the signification/uniform abbreviated phraseology assigned to the ICAO NOTAM Code complemented by ICAO abbreviations, indicators, identifiers, designators, call signs, frequencies, figures and plain language.

National NOTAM are originated and issued for FIR PRAHA and are distributed in five series identified by letters A, B, X, Y. S series is designated for SNOWTAMs. Series are divided according to their significance and marked by letters in descending order. Series A and B are issued in English. Series X and Y contain the same text and the same numbers in the Czech language.

Series A (X): The most important series. It contains all information related to the operations on the ATS routes and at the main international aerodromes in the Czech Republic:
- BRNO/TURANY
- KARLOVY VARY
- OSTRAVA/MOSNOV
- PRAHA/RUZYNE

Series B (Y): It contains information related to the operations at all remaining aerodromes in the Czech Republic and information not corporated to series A (X).

Series S (SNOWTAM). Information concerning hazardous conditions due to snow, slush, ice or standing water associated with snow, slush and ice in the movement areas during winter period. Aerodrome administrations are authorized to issue SNOWTAM in accordance with ICAO Annex 15, Appendix 2 with separate serial numbers. Details are given in the Snow plan in the Aerodrome (AD) Part.

Pre-flight information bulletins (PIB) contain a choice of valid NOTAMs selected from the database maintained by International NOTAM Office. Depending on the requirements of users, PIB could be provided in the form of:
- area type bulletins
- route type bulletins
- aerodrome type bulletins

Aeronautical Information Circulars (AIC)

The Aeronautical Information Circulars (AIC) contain information on long-term forecasts of any major change in legislation, regulations, procedures or facilities, information of a purely explanatory or advisory nature liable to affect flight safety; and information or notification of an explanatory or advisory nature concerning technical, legislative or purely administrative matters. AICs are issued in two series (A and C). AIC Series A contain information affecting international civil aviation and are given international distribution, while AIC Series C contain information affecting national aviation only and are given national distribution. AICs are numbered consecutively within each series, beginning with number 1 each year. A checklist of AIC currently in force is issued as an AIC twice a year.

Checklist of NOTAM

A checklist of valid NOTAM is issued monthly via AFTN.

AIRAC system

In order to control and regulate the operationally significant changes requiring amendments to charts, route-manuals etc., such changes whenever possible, will be issued on predetermined dates according to the AIRAC SYSTEM. This type of information will be published as an AIRAC AIP AMDT or an AIRAC AIP SUP. AIRAC information will be issued so that the information will be received by the user not later than 28 days, and for major changes not later than 56 days, before the effective date. At AIRAC effective date, a trigger NOTAM will be issued giving a brief description of the contents, effective date and reference number of the AIRAC AIP AMDT or AIRAC AIP SUP that will become effective on that date. Trigger NOTAM will remain in force as a reminder in the PIB until the new checklist/summary is issued, but at least 15 days after effective date.

If no information was submitted for publication at the AIRAC date, a NIL notification will be issued by NOTAM not later than on AIRAC cycle before the AIRAC effective date concerned.