| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | FA | Aerodrome | | | 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 | A | Aerodrome information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 999 | Unlimited | | | / | | | Centre Latitude | 5207N | 52° 7' North' | | Centre Longitude | 00434W | 4° 34' West | | Radius of area affected | 005 | 5 nautical miles |
| | ADD PARAGRAPH TO AERODROME WARNINGS.FRZ ( EGRU201A ) ACTIVE WITH UNMANNED AIRCRAFT SYSTEMS ( INCLUDING MODEL AIRCRAFT ), SURFACE-400FT ( 867FT ABOVE MEAN SEA LEVEL ) OUTSIDE OF AERODROME PUBLISHED HOURS.UK AERONAUTICAL INFORMATION PUBLICATION AERODROME 2.20-4 REFERS. |
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