GPS unreliable and may be unavailable within Tehran TMA.

A3669/24

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Airspace closure

2024-10-01 20:58 - 2024-12-30 23:59

Period of Applicability

2024-10-01 20:58 - 2024-12-30 23:59

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Interpretation

Within the lateral limits of Tehran TMA, GPS systems may be unreliable or unavailable, potentially affecting EGPWS/GPWS indications and causing map shifting.

Message

GPS UNRELIABLE AND MAY BE UNAVAILABLE WITHIN AREA WITH THE LATERAL LIMITS OF TEHRAN TMA AS SPECIFIED IN IRAN AIP, FM GND UP TO FL 275, EGPWS/GPWS MAY DISPLAY ERRONEOUS INDICATION AND MAP SHIFTING, AS ...

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Raw NOTAM

A3669/24 NOTAMR A2007/24
Q) OIIX/QGAAU/I/NBO/A/000/275/
A) OIIE B) 2410012058 C) 2412302359 EST
E) GPS UNRELIABLE AND MAY BE UNAVAILABLE WITHIN AREA WITH
THE LATERAL LIMITS OF TEHRAN TMA AS SPECIFIED IN IRAN AIP,
FM GND UP TO FL 275,
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, AS SOON AS POSSIBLE.
F) GND G) FL275