Interpretation

Occasional EGPWS terrain map shift and terrain warnings have been reported due to suspected GPS signal disturbance in the vicinity of Amritsar aerodrome; pilots should exercise caution, take appropriate measures to ensure safe navigation, notify ATC if experiencing navigational difficulties, and submit GNSS interference reports per DGCA guidance.

Message

OBSERVATION OF EGPWS 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.

Raw NOTAM

G0917/25 NOTAMR G0602/25
Q) VIDF/QGAXX/I/NBO/A/000/999/3142N07448E005
A) VIAR B) 2509080534 C) 2512072359 EST
E) OBSERVATION OF EGPWS 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.