| 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 | 001 | 100 feet QNE | | | / | | | Centre Latitude | 5347N | 53° 47' North' | | Centre Longitude | 00259W | 2° 59' West | | Radius of area affected | 001 | 1 nautical miles |
| | TOWER CRANE OPERATING POSITION 534724.11N 0025919.03W ( 1.8NM 52.44 DEG MAGNETIC FROM BLACKPOOL AERODROME REFERENCE POINT ). MAXIMUM HEIGHT 96FT ABOVE MEAN SEA LEVEL,66FT ABOVE GROUND LEVEL |
|
