| Significance | Code | Meaning |
|---|
| 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 | 003 | 300 feet QNE | | | / | | | Centre Latitude | 5131N | 51° 31' North' | | Centre Longitude | 00002E | 0° 2' East | | Radius of area affected | 001 | 1 nautical miles |
| | LONDON CITY OBSTACLE ADD A NEW CRANE TO AERODROME OBSTACLES-IN CIRCLING AREA AND AT AERODROME OBSTACLE ID : TC1 TYPE : CRANE POSITION : 513043.10N 0000132.15E ELEVATION / HEIGHT : 292FT ABOVE MEAN SEA LEVEL / 287FT ABOVE GROUND LEVEL LIGHTING : YES-STEADY RED REMARKS : CANNING TOWN UK AERONAUTICAL INFORMATION PUBLICATION EGLC AERODROME 2.10 REFERS. |
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