| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | XX | Miscellaneous | | | LW | will take place | | | / | | | 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 | 040 | 4000 feet QNE | | | / | | | Centre Latitude | 5240N | 52° 40' North' | | Centre Longitude | 00347W | 3° 47' West | | Radius of area affected | 006 | 6 nautical miles |
| | TWO AIRCRAFT TRANSITING THE MACH LOOP WITHIN 5NM RADIUS OF 524000N 0034700W ( ABERLLEFENNI ). AIRCRAFT MAY BE UNABLE TO COMPLY WITH RAC.FOR INFO 07906 367543.AR-2025-3734 / 01. |
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