Transition altitude/height and transition level within the AD area are changed from the AIP.

A1593/26

PERM

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OpsFlight Procedures

2026-03-18 00:00 - PERM

Duration:PERMANENT

Period of Applicability

2026-03-18 00:00 - PERM

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Interpretation

Transition altitude 13800 ft and transition height 4200 m are established within the aerodrome area instead of the AIP. Transition level varies with QNH: FL150 when QNH is 1013 hPa or above; FL160 when QNH is 977 hPa or above but less than 1013 hPa; FL170 when QNH is less than 977 hPa.

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Raw NOTAM

A1593/26 NOTAMN
Q) URRV/QPTCH/IV/BO/A/000/999/4327N03957E025
A) URSS B) 2603180000 C) PERM
E) FLW TRANSITION ALT/HGT AND TRANSITION LVL ESTABLISHED WI AD AREA
INSTEAD OF PUBLISHED:
1. TRANSITION ALT/HGT:
- TRANSITION ALT 13800FT,
- TRANSITION HGT (4200)M
2. TRANSITION LVL:
- FL150 WHEN QNH IS 1013 HPA (760MM MERCURY COLUMN) OR ABOVE
- FL160 WHEN QNH IS 977 HPA (733MM MERCURY COLUMN) OR ABOVE,
BUT LESS THAN 1013 HPA (760MM MERCURY COLUMN)
- FL170 WHEN QNH IS LESS THAN 977 HPA (733MM MERCURY COLUMN).
REF AIP AD 2.1 URSS - 57, 87, 88, 97, 98, 99, 100, 101, 102, 103,
104, 113, 139, 140, 147, 148, 155, 156, 157, 158, 159, 160, 161,
162, 163, 164, 205, 206, 207, 208, 213, 214, 215, 216, 217.

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