A1738/25
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Navigation Aid Status

GPS signals are unreliable and may be unavailable in the Mashhad TMA area up to FL245.

2025-06-01 15:25 - 2025-08-30 20:30

Period of Applicability

2025-06-01 15:25 - 2025-08-30 20:30

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Interpretation

GPS signals are unreliable and may be unavailable within the Mashhad TMA area, from ground level up to FL245. EGPWS/GPWS may show erroneous indications and map shifting due to this issue.

Message

GPS UNRELIABLE 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 REPOR...

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Raw NOTAM

A1738/25 NOTAMR A0925/25
Q) OIIX/QGAAU/I/NBO/A/000/245/
A) OIMM B) 2506011525 C) 2508302030 EST
E) GPS UNRELIABLE 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 SERVICE, SAP.
F) GND            G) FL245
Issued at: 2025-06-01 15:25
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