| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | NV | VOR | | | AS | unserviceable | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 999 | Unlimited | | | / | | | Centre Latitude | 5342N | 53° 42' North' | | Centre Longitude | 00006W | 0° 6' West | | Radius of area affected | 025 | 25 nautical miles |
| | VOR / DISTANCE MEASURING EQUIPMENT OTR / OTTRINGHAM 113.9MHZ CH083X.DVOR UNSERVICEABLE |
|
