| 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 | 002 | 200 feet QNE | | | / | | | Centre Latitude | 5129N | 51° 29' North' | | Centre Longitude | 00028W | 0° 28' West | | Radius of area affected | 001 | 1 nautical miles |
| | ADD A NEW CRANE TO LONDON HEATHROW AERODROME OBSTACLES-IN CIRCLING AREA AND AT AERODROME OBSTACLE ID : 20260224103 TYPE : CRANE POSITION : 512834N 0002826W ELEVATION / HEIGHT : 111FT ABOVE MEAN SEA LEVEL / 30FT ABOVE GROUND LEVEL LIGHTING : YES-RED REMARKS : TAXIWAY ALPHA NORTH PHASE 2 HEATHROW AIRPORT.NO OPERATIONS IN LVP.OPERATING WHEN 09L / 27R IS CLOSED.UK AERONAUTICAL INFORMATION PUBLICATION EGLL AERODROME 2.10 REFERS. |
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