| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | LP | Precision Approach Path Indicator | | | XX | miscellaneous plain language | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | A | Aerodrome information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 999 | Unlimited | | | / | | | Centre Latitude | 5109N | 51° 9' North' | | Centre Longitude | 00145W | 1° 45' West | | Radius of area affected | 005 | 5 nautical miles |
| | PRECISION APPROACH PATH INDICATOR RUNWAY 23 NOT CALIBRATED FOR CATEGORY-I-ILS GLIDE SLOPE APPROACHES.PRECISION APPROACH PATH INDICATOR SYSTEM SERVICABLE,NON-COMPLIANT.AIRCREW ARE TO USE CAUTION DUE VISUAL AID ERRORS. |
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