PBN implementation in Mongolia

27 June 2017

In recognizing PBN benefits, and taking into consideration of the ICAO Assembly Resolution A37-118, Mongolia has developed its PBN Implementation plan.

Civil Aviation Authority of Mongolia signed Memorandum of Cooperation with the ICAO Regional Sub-Office on technical assistance and operational commitment in relation to PBN for Mongolia, in November 2013.

Since almost all traffic operating within the UB FIR is overflight, Mongolia is more rely on PBN implementation in en-route segment to improve flight efficiency and safety. Through the Memorandum of Cooperation, the ICAO APAC RSO is supporting Mongolia in the implementation of PBN and a phased approach to en-route PBN implementation.

The coming on-stream of ADS-B and new MSSR surveillance capabilities has reduced the necessity for implementing RNP10 routes. Currently, Mongolia has chosen only RNAV 5 navigation specification for en-route application in line with Mongolian CNS infrastructure and fleet capability of overflying airliners. CAAM has also chosen Y as route designators for Mongolian domestic RNAV 5 routes.

In Phase One of en-route PBN implementation, Mongolia has implemented Y345, Y327 and Y520 as RNAV 5 domestic routes in the eastern segment of the FIR in November 2015.

In Phase Two of en-route PBN implementation, Mongolia established Y478, Y962, Y683, Y746, Z156 (only for Ulaanbaatar airport arrival and departure), Y618, Y165 as RNAV5 routes, and started to use in flight operation since 30th March 2017. By implementing these routes, 70 % of overflights within Mongolia's airspace enabled to use PBN routes.

According to IATA initial benefit assessment for implementing PBN routes, total annual savings are:

Distances: 237,656 NMTime: 23,840 minutesFuel: 2,241 tons.

Within the framework of PBN implementation, Mongolia has been working closely with experienced organizations like ICAO APAC RSO, DFS Germany, IATA and JICA in consulting.

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