Overview
- Authorities cautioned that GPS signal interference or loss has been reported along ATS routes L639 and P574 within the Mumbai Flight Information Region.
- The advisory is in effect from November 13 to 17, 2025, alerting pilots and airlines to potential disruptions to satellite-based navigation.
- India’s aviation regulator directed pilots, controllers, and technical units to file reports on spoofing or abnormal GPS behavior within 10 minutes of detection.
- The notice follows recent reports of GPS interference around New Delhi and comes after a separate ATC systems outage earlier this month that disrupted flights.
- Geo-intelligence researcher Damien Symon highlighted the Mumbai NOTAM on X, drawing wider attention to the precautionary alert, and officials have not attributed a cause.