GNSS Spoofing Threatens Delhi Aviation

Summary Notes on GNSS Spoofing Incident Over Delhi

Facts & Statistics

• Incident Location: Delhi airspace.
• Duration: Reports of GPS spoofing incidents began in early November 2023.
• Aircraft Affected: Pilots from multiple airlines, including Air India, encountered spoofing on six consecutive days.
• Severity: By August 2024, approximately 1,500 flights per day experienced GPS spoofing, with a total of 41,000 flights affected from July 15 to August 15, 2024.
• Comparative Data: Delhi was among the top 10 regions experiencing spoofing, registering 316 events during the monitored period, following Cyprus (5,655 events).

Constitutional and Legal References

• Safety Regulations: The Directorate General of Civil Aviation (DGCA) has established a stricter Standard Operating Protocol (SOP) for reporting GNSS spoofing incidents within 10 minutes to enhance safety measures.
• International Law: The International Air Transport Association (IATA) highlighted that international law prohibits targeting civil aircraft or airports, pressing the need for stricter regulations on GPS jamming devices.

Government Actions and Policies

• Inquiries Initiated: The National Security Council Secretariat (NSCS), led by National Security Adviser Ajit Doval, is investigating the spoofing incidents.
• Operational Changes: Following reports, the DGCA has mandated rapid reporting for incidents, enhancing vigilance and response mechanisms.

Technical Aspects

• Impact of Spoofing: Spoofing leads to erroneous navigational data affecting terrain warnings, flight safety, and increasing pilot workload. Despite redundancies in systems, such interference can degrade pilot situational awareness.
• Modern Aircraft Reliance: GNSS signals are crucial for navigation, with essential systems such as terrain warning and automatic braking heavily dependent on accurate data.

Judicial Judgments & Investigations

• Ongoing Probe: The NSCS has formed a committee to conduct a thorough investigation into the nature and causes of the spoofing, addressing concerns raised post-incident.

Economic and Transportation Data

• Flight Operations: The disruptions have considerable implications for various airlines operating in and around Delhi, particularly impacting their operational reliability and safety protocols.

International Perspectives & Agreements

• Global Concerns: Similar GPS disruptions were reported involving European leaders, with accusations directed towards Russian interference.
• IATA Proposals: At the UN aviation safety meeting, IATA proposed initiatives aimed at improving aviation safety against the backdrop of increasing GPS spoofing, including:
  • Developing standardized reporting mechanisms.
  • Enhancing cross-border cooperation.
  • Regulating the use of jamming devices.

Environmental & Operational Safety Issues

• Increased Risks: Continuous GNSS spoofing incidents near major urban airports (Delhi, Mumbai, Kolkata) raise significant safety concerns among aviation safety stakeholders.

Conclusion

The recent spike in GNSS spoofing incidents over Delhi has prompted government scrutiny, leading to revised safety protocols in aviation. Heightened vigilance and international cooperation are imperative to safeguard air transport operations against emerging threats.