| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | IG | Glide path (ILS) | | | XX | miscellaneous plain language | | | / | | | Traffic | I | IFR traffic affected | | | / | | | Purpose | N | For immediate attention of aircraft operators | | | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | A | Aerodrome information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 999 | Unlimited | | | / | | | Centre Latitude | 5044N | 50° 44' North' | | Centre Longitude | 00325W | 3° 25' West | | Radius of area affected | 005 | 5 nautical miles |
| | RUNWAY 26 ILS FLUCTIATION-RUNWAY 26 ILS,GP FLAGS MAY BE EXPERINCED WHEN 8 DEGREES LEFT OF CENTRELINE OR 8 DEGREES RIGHT OF CENTRELINE AND WELL BELOW GLIDEPATH.NOTAM WILL BE SUPERSEDED BY SUPPLEMENT 048 / 2025 WITH EFFECT FROM 26 JUNE 2025. |
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