| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | PI | Instrument approach procedure | | | CH | changed | | | / | | | Traffic | I | IFR traffic affected | | | / | | | Purpose | N | For immediate attention of aircraft operators | | | 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 | 5141N | 51° 41' North' | | Centre Longitude | 00147W | 1° 47' West | | Radius of area affected | 005 | 5 nautical miles |
| | INSTRUMENT APPROACH PROCEDURE CHANGED : HI ILS OR LOCALISER RUNWAY 27 : VISUAL DECENT POINT NOT AUTHORIZED.CIRCLING AT NIGHT NON APPLICABLE WHEN PRECISION APPROACH PATH INDICATOR UNSERVICEABLE.USAF ONLY : WHEN PRECISION APPROACH PATH INDICATOR UNSERVICEABLE,STRAIGHT-IN RUNWAY 27 AUTHORIZED AT NIGHT WITH AIRCREW COMMAND APPROVAL.VISUAL SEGMENT SURFACE OBSTACLE PENETRATIONS ILS / LOCALISER : UNLIT TREE 52FT ABOVE GROUND LEVEL / 305FT ZMSL,1468FT FROM THRESHOLD,629FT RIGHT OF COURSE,UNLIT TREE 53FT ABOVE GROUND LEVEL / 305FT ZMSL,1578FT FROM THRESHOLD,510FT RIGHT OF COURSE,UNLIT TREE 61FTAGL / 312FT ABOVE MEAN SEA LEVEL,1864FT FROM THRESHOLD,596FT RIGHT OF COURSE,UNLIT TREE 59FT ABOVE GROUND LEVEL / 310FT ABOVE MEAN SEA LEVEL,1810FT FROM THRESHOLD,560FT RIGHT OF COURSE.CHANGE MINIMA TO : S-ILS 27 CATEGORY A 487 / 1200M 232 ( 300-1200M ), CATEGORY B 497 / 1200M242 ( 300-1200M ), CATEGORY C 506 / 1200M 251 ( 300-1200M ), CATEGORY D 516 / 1200M261 ( 300-1200M ), CATEGORY E 536 / 1200M 281 ( 300-1200M ), WHEN ALS UNSERVICEABLE INCREASE CATEGORY BCD VIS TO 1300M,CATEGORY E VIS TO 1400M.S-LOCALISER 27 : CATEGORY ABCDE 650 / 1200M 395 ( 400-1200M ), WHEN ALS INOP INCREASE VIS CATEGORY ABCDE TO 1800M.CIRCLING : CATEGORY A 780-2300M 494 ( 500-2300M ), CATEGORY B810-2400M 524 ( 600-2400M ), CATEGORY C 1010-3400M 724 ( 800-3400M ), CATEGORY D 1060-3600M 774 ( 800-3600M ), CATEGORY E 1620-5000M 1334 ( 1400-5000M ) |
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