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Article 2: Not just turbulence

Why in news: The AI 2379 incident on August 4, 2026, has been classified as a serious incident after technical failures, altitude deviation and injuries, alongside concerns over psychoactive-substance screening.

Key Details

  • Serious incident: Air India AI 2379, flying from Phuket to Delhi, carried 137 passengers and eight crew; more than 20 people were injured after a significant altitude deviation.
  • Multiple technical faults: The Airbus A320neo reportedly experienced hydraulic-system warnings, elevator flight-control faults, autopilot disconnection, emergency-exit indications and an engine anti-ice warning.
  • Investigation: The Aircraft Accident Investigation Bureau (AAIB) is investigating with France’s BEA and Airbus technical representatives to establish the causes of the incident.
  • Psychoactive-substance concern: Post-flight screening of the pilot-in-command raised concerns about weaknesses in existing crew screening, which has traditionally focused more heavily on alcohol breathalyser tests.
  • Need for stronger regulation: DGCA must ensure strict compliance with psychoactive-substance testing rules, including random and post-flight testing, as impairment can affect judgement, reaction time, coordination and decision-making.

Serious Incident and Technical Failures

  • Air India flight AI 2379, flying from Phuket to Delhi on August 4, 2026, had 137 passengers and eight crew members.
  • The incident was initially described as an “event of turbulence” but was later classified as a “serious incident”.
  • More than 20 passengers and crew members were injured following significant altitude deviations and technical problems.
  • The investigation is being examined by the Aircraft Accident Investigation Bureau (AAIB), with support from France’s BEA and Airbus technical representatives.

Multiple Aircraft Anomalies

  • The Airbus A320neo reportedly experienced several technical warnings during the flight.
  • These included hydraulic system warnings, elevator flight-control faults and autopilot disconnection.
  • There were also indications involving the emergency-exit doors and engine anti-ice system.
  • Initial Airbus data reportedly points towards technical errors, but the investigation must establish the precise sequence and causes.

Concerns over Psychoactive Substance Screening

  • A separate concern emerged from the post-flight screening of the pilot-in-command for psychoactive substances.
  • The incident prompted Air India to begin mandatory screening of flight-deck crew for substances and unprescribed medicines.
  • It has exposed a potential weakness in existing crew-screening practices, which place greater emphasis on alcohol breathalyser tests.
  • Psychoactive substances can impair the very skills required in the cockpit, including judgement, reaction time, coordination and decision-making.

Need for Stronger Regulatory Compliance

  • India’s Civil Aviation Requirements (CAR) provide for random and post-flight/post-shift testing of psychoactive substances, along with graded disciplinary measures.
  • DGCA’s Medical Circular No. 02 of 2021 also highlights the risks associated with over-the-counter drugs and self-medication.
  • The regulator must ensure strict implementation and regular monitoring of these requirements.
  • This is especially important as airlines expand operations and crew face increasing work-related stress and fatigue.

Safety Must Not Depend on Luck

  • Aviation safety depends on ensuring that medically and psychologically fit crew operate aircraft.
  • Lessons from past accidents, including Mangaluru (2010) and Kozhikode (2020), underline the consequences of impaired pilot performance.
  • Airlines must maintain the highest standards of crew health, screening and operational compliance.
  • The AI 2379 incident may have ended without a larger disaster, but luck cannot become a substitute for systematic aviation safety.

Conclusion

The AI 2379 incident highlights that aviation safety depends on prevention, not luck. Technical failures require robust investigation, while crew screening must address alcohol as well as psychoactive substances and medication-related impairment. As Indian airlines expand, the DGCA and operators must strengthen testing, medical oversight and safety compliance. Fit crew, reliable aircraft and strict regulation are essential for passenger safety.