Suspected GNSS interference near Amritsar may cause EGPWS terrain map shift; pilots exercise caution and report.

A0550/26

EST

Checking status...

SAFSafety Advisories

2026-03-09 13:40 - 2026-06-09 13:30

Duration:LONG4 months EST

Period of Applicability

2026-03-09 13:40 - 2026-06-09 13:30

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Interpretation

Suspected GNSS interference in the vicinity of Amritsar aerodrome may occasionally cause EGPWS terrain map shifts and terrain warnings; pilots are advised to exercise caution, notify ATC if navigational difficulties occur, and report GNSS interference per ENR 4.3 and DGCA Advisory Circular 01/2023.

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Raw NOTAM

A0550/26 NOTAMN
Q) VIDF/QGWXX/IV/NBO/AE/000/999/3142N07448E999
A) VIAR B) 2603091340 C) 2606091330 EST
E) OBSERVATION OF EGPWS(ENHANCED GROUND PROXIMITY WARNING SYSTEM)
TERRAIN MAP SHIFT DUE TO SUSPECTED DISTURBANCE OF GPS SIGNAL CAUSING
TERRAIN WARNING HAS BEEN REPORTED OCCASIONALLY IN VICINITY OF
AMRITSAR AP. PILOTS TO EXER CTN AND TAKE ALL MEASURES TO ENSURE SAFE
AND EFFICIENT CONTINUATION OF NAV. IN CASE OF NAVIGATIONAL
DIFFICULTIES PILOTS TO NOTIFY ATC FOR ASSISTANCE.
FLIGHT CREW TO REPORT GNSS INTERFERENCE USING FORMAT GIVEN IN PARA
10 OF ENR 4.3 IN EAIP INDIA TO THE REPORTING CHANNEL GIVEN IN
APPENDIX 3 OF DIRECTORATE GENERAL OF CIVIL AVIATION (DGCA) ADVISORY
CIRCULAR 01 OF 2023.

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