| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | OB | Obstacle | | | CE | erected | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | M | Miscellaneous | | | / | | | Scope | A | Aerodrome information | | | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 002 | 200 feet QNE | | | / | | | Centre Latitude | 5128N | 51° 28' North' | | Centre Longitude | 00027W | 0° 27' West | | Radius of area affected | 001 | 1 nautical miles |
| | LIT CRANE OPERATING POSITION : 512808N 0002723W-512808N 0002718W-512806N 0002718W-512806N 0002723W-512808N 0002723W ( HEATHROW ). MAXIMUM HEIGHT 98FT ABOVE GROUND LEVEL,176FT ABOVE MEAN SEA LEVEL.NO CRANE OPERATING IN LVP.NO APPROACH OR DEPARTURES TO OPERATING FROM RUNWAY 09R / 27L WHEN CRANE IS IN OPERATING.CRANE REF 2026060265 |
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