Dear Colleagues!

We inform you that in accordance with the requirements of IATA resolution 017F and the ATPCO data format (category 31/33), GDS Sirena-Travel since July 01, 2019 begins transfer of the ticket issuing to a new, international form, uniform for all Airlines.

  1. All airlines still using the old forms in company sessions, in which while ticket exchange in the field "TOTAL" indicated the amount of the cost of the new transportation, as well as in the field "FOP" indicated the amount of the ticket accepted in exchange, counted as payment again of the issued ticket will be transferred to a new international form (the TCH form meets these requirements). According to the new ticket format, the FOP field will contain the form of payment for the new ticket without specifying the amounts, and the TOTAL field will contain the amount of additional payment for the new ticket.
  2.  The pricing procedure will also be changed - for all Airlines, when building tariffs for international transportation, neutral construction units will be used - NUC (Neutral Unit of Construction - established by IATA for calculating of international tariffs).

On the route-receipt NUC in the column “Fare calculation” will be shown the final tariff and all tariff surcharges, if any, will also be expressed in NUC. Then, the final NUC is converted at the rate of IROE to the currency of the country of the beginning of  international transportation and this value is shown in the “FARE” column of the route-receipt.

If there are domestic and international sections in transportation used to build the final tariff, published in different currencies, including RUB for domestic transportation, in the “Fare calculation” all tariffs will also be indicated in the NUC, and then at the rate of IROE the final tariff will be converted to the currency of the country of commencement of international transportation.

Please address your questions regarding these changes to the contacts below:

For technological issues regarding the transition to NUC:

Project Manager for Tariff Information Sirena-Travel CJSC

Mironova Olga, tel: +7 495 782 13 15 ext. 4-50

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By type of printed form route-receipt - Technology Department

Chief Specialist of Sirena-Travel CJSC
Katushenok Elena Nikolaevna
tel. +7 (495) 363 32 73 ext. 1-30
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Technological support service:

Tel .: +7 (495) 725 09 00
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