GPS is unreliable within Mashhad TMA and pilots must report anomalies.

A0891/26

EST

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ASPAirspace Restrictions

2026-05-05 08:02 - 2026-08-03 20:30

Duration:LONG4 months EST

Period of Applicability

2026-05-05 08:02 - 2026-08-03 20:30

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Interpretation

GPS is unreliable and may be unavailable within the area defined by the lateral limits of Mashhad TMA as specified in the Iran AIP, from the surface up to FL245. EGPWS/GPWS may display erroneous indications and map shifting. Pilots shall report GPS anomalies, including degraded operation and/or loss of service, as soon as possible.

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Raw NOTAM

A0891/26 NOTAMR A0480/26
Q)OIIX/QGAAU/I/NBO/A/000/245/
A)OIMM B)2605050802 C)2608032030EST
E)GPS UNREL AND MAY BE UNAVAILABLE WI AREA WITH
THE LATERAL LIMITS OF MASHHAD TMA AS SPECIFED IN IRAN AIP,
FM GND UP TO FL245,
EGPWS/GPWS MAY DISPLAY ERRONEOUS INDICATION AND MAP SHIFTING,
AS REPORTED FREQUENTLY,
PILOTS SHALL REPORT GPS ANOMALIES INCLUDING DEGRADED OPERATION
AND/OR LOSS OF SER, ASAP.
F)GND            G)FL245

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