South Pacific FANS Performance Data

CPDLC and ADS-C Performance

The graphs below display the downlink message performance (aircraft sending time compared with ATSP receipt time) of participating ATS Providers (ATSP) from the South Pacific region compared against a target performance line.

The graphs indicate the levels of performance being achieved by the FANS-1/A data link system in the South Pacific. The figures include transmission over VHF and Satellite media and include both CPDLC and ADS-C messages.

During 2009 the ISPACG Central Reporting Agency (CRA) has begun work on a specific website that reports on performance data based on a new reporting regime in accordance with the Oceanic Safety and Performance Requirements (Oceanic SPR). The SPR standard takes into account Required Communication Performance (RCP), which includes the interaction times of the various human components within the overall system. The performance data on the site is also broken down to the individual airline and aircraft type level. The data currently reported on the ATC Data Link News site is compiled as per the FANS Operations Manual (FOM), and will eventually be replaced by the RCP criteria as individual ATSUs modify their reporting systems.

The ISPACG CRA site is at: http://ispacg-cra.com/performance.asp

Downlink Target - 95% Within 60 seconds

CPDLC Downlinks over VHF - Individual ATSUs
Target = 95% of downlink messages delivered within 60 seconds

ADS-C Downlinks over VHF - Individual ATSUs
Target = 95% of downlink messages delivered within 60 seconds

CPDLC Downlinks over SATCOM - Individual ATSUs
Target = 95% of downlink messages delivered within 60 seconds

ADS-C Downlinks over SATCOM - Individual ATSUs
Target = 95% of downlink messages delivered within 60 seconds

Downlink Target - 99% Within 180 seconds

Uplink Target - 95% Within 120 seconds Return Trip (send to receipt of MAS)

Uplink Success Target - 99% Delivered

Total Uplink Messages Delivered - Individual ATSUs
Target = 99% of uplink messages delivered

30/30 Separation Standard Criteria - Minimum Performance

SASP 30/30 ADS-C Target = 93.5% of downlink messages delivered < 180 seconds

Follow this link to: South Pacific Uplink and Downlink Message Use Statistics