Interpretation

GPS may be unreliable and unavailable within the lateral limits of Mashhad TMA (as specified in Iran AIP) from ground 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.

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 REPORTED FREQUENTLY, PILOTS SHALL REPORT GPS ANOMALIES INCLUDING DEGRADED OPERATION AND/OR LOSS OF SER, ASAP.

Raw NOTAM

A2420/25 NOTAMR A1738/25
Q) OIIX/QGAAU/I/NBO/A/000/245/
A) OIMM B) 2508231106 C) 2511212030 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 SER, ASAP.
F) GND            G) FL245