Overview
- Pilots and air traffic controllers reported severe anomalies within roughly 60 nautical miles of Delhi, including false terrain warnings and conflicting position data.
- Controllers provided manual vectors and cautions to crews, and at least seven flights were diverted to Jaipur during one evening of disruptions.
- IGIA’s main runway 10/28 currently lacks ILS during a Category III upgrade, heightening reliance on GPS‑based RNP, with operators working to restore ILS by 27 November.
- More than 800 flights were delayed on Friday after AAI’s Automatic Message Switching System slowed flight‑plan processing; the agency says systems are restored and backlogs are easing.
- India has logged hundreds of interference cases near border regions in recent years, and officials say the source of the Delhi events is unverified with potential escalation to security agencies under consideration.