| Significance | Code | Meaning |
|---|
| FIR | EGGX | Shanwick FIR | | | / | | | Qualifiers | Q | | | | GW | UNKNOWN CODE | | | XX | miscellaneous plain language | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | N | For immediate attention of aircraft operators | | | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 999 | Unlimited | | | / | | | Centre Latitude | 5229N | 52° 29' North' | | Centre Longitude | 01900W | 19° 0' West | | Radius of area affected | 999 | 999 nautical miles |
| | ADD NEW PROCEDURE RELATED TO GNSS INTERFERENCE TO ENR 2.2 PARA 3.7 ' SEND AN RCL ': FLIGHTS THAT EXPERIENCE OR SUSPECT GNSS INTERFERENCE ENROUTE TO THE SHANWICK OCEANIC ENTRY POINT SHALL NOTIFY SHANWICK AIR TRAFFIC CONTROL IN THE RCL.NOTIFICATION SHOULD BE INCLUDED IN THE RCL MESSAGE VIA ACARS OR VOICE,CONFIRMING DEGRADATION OF NAVIGATION STATUS AND DETAIL OF ONGOING LOSS / IMPACTS TO THE AIRCRAFT SYSTEMS AND CAPABILITIES.EXAMPLES OF RCL ' AIR TRAFFIC CONTROL REMARKS '/ TEXT : ' GNSS INTERFERENCE RNP10 ONLY ' ' NO DATA LINK ' ' DEGRADED NAVIGATION NO GNSS ' IN ADDITION,AIRLINE OPERATION CENTRES CAN ALSO DIRECTLY INFORM SHANWICK SUPERVISOR TO MAKE THEM AWARE WHEN ONE OF THEIR FLIGHTS HAS BEEN IMPACTED BY GNSS INTERFERENCE THROUGH DIRECT CONTACT ON + 44 ( 0 ) 1294 655141.UK AERONAUTICAL INFORMATION PUBLICATION ENR 2.2 REFERS. |
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