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2020 S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M
January   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31  
Pebruary   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29  
March 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31  
April   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30  
May   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31  
June   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30  
July   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31  
August   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
September   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30  
October   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31  
November 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30  
December   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31  
 AIRAC dates of this year is not completely defined in the database 

AIRAC stands for Aeronautical Information Regulation And Control and steps from the Annex 15 - Aeronautical Information Services (AIS) document and defines a series of common dates and an associated standard aeronautical information publication procedure for States.

In short it defines that in all instances, information provided under the AIRAC system shall be distributed by the Aeronautical Services (INDOAVIS) unit at least 42 days in advance of the effective date with the objective of reaching recipients at least 28 days in advance of the effective date. Whenever major changes are planned and where additional notice is desirable and practicable, a publication date of at least 56 days in advance of the effective date should be used.

Three dates are to be remembered from this:

 

Effective Date Date at which changes take effect.
Publication Date Date at which the AIS / (INDOAVIS) organization sends out the information.
- Should be at least 42 days (56 for major changes) before effect
Reception Date Date at which the user should receive the publications.
- Should be at 28 days before the effective date.

The two weeks between Publication date and Reception date is basically to allow for postal distribution.

The AIRAC cycle

The AIRAC cycle was adopted in 1964 and further improved over the years.

Key are the worldwide effective dates with 28 days intervals (e.g. 4 August 2005, 1 September 2005, 29 September 2005, ...). Effective days are always on a Thursday.

It may look indeed like a long period, 28 days, or even 56, but it should be understood that aeronautical information changes (mostly published through so called AIRAC Amendments) require:

  • Changes to local systems which includes interpreting, re-typing and re-coding the information.

  • Verification and Correction as publications are unfortunately seldom perfect.

  • Validation against other data; Flight Plans are just one example.

  • Re-distribution. Hereby think of Charts and Flight Management Systems to a fleet which can be anywhere in the world.

The AIRAC effective dates

The AIRAC effective dates are published in ICAO Doc 8126, the Aeronautical Information Services Manual, Table 2-1. Schedule of AIRAC effective dates'.

 

AIRAC adalah singkatan dari Aeronautical Information Regulation And Control dan acuan berdasarkan dokumen Annex 15 - Aeronautical Information Services (AIS) yang menentukan serangkaian tanggal dan prosedur publikasi informasi aeronautika yang terkait untuk suatu Negara.
 
Singkatnya, ini mendefinisikan bahwa dalam semua kasus, informasi yang diberikan di bawah sistem AIRAC harus didistribusikan oleh unit Aeronautical Services (INDOAVIS) paling sedikit 42 hari sebelum tanggal efektif dengan tujuan mencapai penerima paling sedikit 28 hari sebelum tanggal efektif. Kapan pun perubahan besar direncanakan dan bila ada pemberitahuan tambahan yang diinginkan dan dapat dilakukan, tanggal publikasi minimal 56 hari sebelum tanggal efektif harus digunakan.

Tiga tanggal harus diingat dari ini:

 

Tanggal Berlaku Tanggal di mana perubahan mulai berlaku.
Tanggal Penerbitan Tanggal di mana AIS / Organisasi (INDOAVIS) mengirimkan informasi tersebut.
- Harus minimal 42 hari (56 untuk perubahan besar) sebelum tanggal berlaku
Tanggal Penerimaan Tanggal di mana pengguna harus menerima publikasi.
- Harus di 28 hari sebelum tanggal efektif.

 

Dua minggu antara tanggal Publikasi dan Tanggal Penerimaan pada dasarnya memungkinkan pendistribusian melalui jasa pos.

Siklus AIRAC

Siklus AIRAC diadopsi pada tahun 1964 dan terus ditingkatkan selama bertahun-tahun.
 
Tanggal efektif adalah kunci yg digunakan di seluruh dunia dengan interval 28 hari (misalnya 4 Agustus 2005, 1 September 2005, 29 September 2005, ...). Hari yang efektif selalu terjadi pada hari Kamis.
 
Mungkin memang terlihat seperti periode yang panjang, 28 hari, atau bahkan 56, namun harus dipahami bahwa perubahan informasi aeronautika (kebanyakan dipublikasikan melalui Amandemen AIRAC) memerlukan:

  • Perubahan pada sistem lokal yang meliputi interpretasi, pengetikan ulang dan pengkodean ulang informasi.

  • Verifikasi dan Koreksi sebagai publikasi sayangnya jarang sempurna.

  • Validasi terhadap data lainnya; Rencana Penerbangan hanyalah satu contoh.

  • Distribusi kembali Dengan ini, pikirkan Charts and Flight Management Systems ke armada yang bisa berada dimana saja di dunia ini.

Tanggal efektif AIRAC
 
Tanggal efektif AIRAC diterbitkan berdasarkan Doc. ICAO 8126, Aeronautical Information Services Manual, Tabel 2-1. Jadwal tanggal efektif AIRAC '.


Sumber : https://www.icao.int/safety/information-management/Pages/AIRACAdherence.aspx