| 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 | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 005 | 500 feet QNE | | | / | | | Centre Latitude | 5154N | 51° 54' North' | | Centre Longitude | 00012W | 0° 12' West | | Radius of area affected | 001 | 1 nautical miles |
| | LIT CRANE AT POSITION 515413N 0001158W ( STEVENAGE,HERTFORDSHIRE ) IN LOW FLYING THAMES VALLEY AVOIDANCE AREA DAY AND NIGHT HEIGHT 130FT ABOVE GROUND LEVEL 450FT ABOVE MEAN SEA LEVEL.26 / 09 / 302 / LFC |
|
