| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | RR | Restricted area | | | CA | activated | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | W | Navigational Warning | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 013 | 1300 feet QNE | | | / | | | Centre Latitude | 5133N | 51° 33' North' | | Centre Longitude | 00234W | 2° 34' West | | Radius of area affected | 001 | 1 nautical miles |
| | RESTRICTED AREA EGRU181 ( ALMONDSBURY ) ACTIVE FOR UAS ONLY WITHIN 0.5NM RADIUS OF POSITION 513308N 0023335W.DOES NOT APPLY TO ANY UNMANNED AIRCRAFT FLYING IN ACCORDANCE WITH EXCEPTIONS STATED IN THE AIS BRIEFING SHEET.BRIEFING SHEET 2025-009 REFERS.FURTHER DETAILS WWW.NATS.AERO / AIS.RESTRICTION OF FLYING REGULATIONS MADE UNDER ARTICLE 239 OF THE AIR NAV ORDER 2016.AR-2024-2278 / 01 |
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