Air India AI 2379 Phuket-Delhi probe: AAIB examines technical, human factors
Synopsis
An Air India Airbus A320 on the Phuket–Delhi route suddenly dropped 300 feet mid-cruise, injuring 20 passengers and 4 crew. India's AAIB is now conducting a full investigation with technical support from France's BEA and Airbus — and is urging the public not to jump to conclusions while the probe is underway.
Key Takeaways
Air India Flight AI 2379 (registration VT-EXO ), an Airbus A320 , experienced a sudden 300-foot altitude variation during cruise on the Phuket–Delhi route.
20 passengers and 4 cabin crew members sustained injuries; the aircraft landed safely at Delhi .
The Aircraft Accident Investigation Bureau (AAIB) is examining technical, operational, medical, and human factor evidence.
France's BEA and Airbus are providing technical assistance under ICAO protocols as the state of design and manufacture.
The AAIB will issue preliminary findings within the stipulated timeframe; investigation records remain confidential until then.
The Aircraft Accident Investigation Bureau (AAIB) is conducting a comprehensive investigation into Air India Flight AI 2379, which experienced a sudden altitude variation during its Phuket–Delhi route, the Civil Aviation Ministry said in a statement on Tuesday, 11 August. The bureau is systematically collecting and examining all relevant technical, operational, medical, and human factor evidence before drawing any conclusions.
What Happened on Flight AI 2379
An Air India Airbus A320 aircraft, registration VT-EXO, operating scheduled flight AI 2379 from Phuket to Delhi, experienced a sudden altitude variation of approximately 300 feet during cruise. The aircraft subsequently stabilised and landed safely at Delhi. The incident resulted in injuries to 20 passengers and four cabin crew members.
Scope of the Investigation
The AAIB's examination covers the A320 aircraft and its systems, recorded flight data, operational and maintenance records, medical information, and interviews with persons concerned. The bureau has stressed that all material evidence will be examined in its entirety before any findings are issued.
Certain records, statements, and medical information gathered during the probe are protected and confidential under the applicable investigation framework. The AAIB has urged the media and the public to refrain from drawing conclusions based on incomplete or unverified information while the investigation remains in progress.
International Participation Under ICAO Protocols
In line with established international aviation investigation norms, France's Bureau d'Enquêtes et d'Analyses pour la sécurité de l'aviation civile (BEA) — as the investigation authority of the state of design — along with technical representatives of Airbus, is extending technical assistance to the AAIB. This includes provision of relevant technical information and design documentation, consistent with ICAO protocols.
The participation of the state of design and state of manufacture in such incidents is a standard component of the international investigation framework, the ministry noted.
What the AAIB Has Said
The bureau has affirmed that its investigation is independent, evidence-based, and comprehensive. Preliminary findings will be issued within the stipulated timeframe in accordance with applicable provisions and ICAO protocols. The sole objective, the statement emphasised, is to determine the circumstances and contributing factors of the occurrence and to identify safety measures to prevent recurrence.
Further information will be placed in the public domain at the appropriate stage of the investigation, the ministry added.
Point of View
Protocol-driven communication is appropriate — but it also reflects how little verified information has entered the public domain since the incident. A 300-foot altitude drop mid-cruise is not a routine turbulence event; it warrants scrutiny of both the aircraft's systems and crew response protocols. The involvement of France's BEA and Airbus signals this is being treated seriously at the international level. What mainstream coverage risks missing is that ICAO Annex 13 investigations are safety-focused, not liability-focused — meaning findings, when they come, will prioritise prevention over blame. India's civil aviation safety record has faced growing attention in recent years, and how the AAIB handles transparency here will matter beyond this single flight.
NationPress
11 Aug 2026
Frequently Asked Questions
What happened on Air India Flight AI 2379?
Air India Flight AI 2379, an Airbus A320 (registration VT-EXO) operating from Phuket to Delhi, experienced a sudden altitude variation of approximately 300 feet during cruise. The aircraft stabilised and landed safely at Delhi, but 20 passengers and 4 cabin crew members were injured.
Who is investigating the Air India Phuket–Delhi incident?
India's Aircraft Accident Investigation Bureau (AAIB), operating under the Civil Aviation Ministry, is leading the investigation. France's BEA and Airbus are providing technical assistance under ICAO protocols as representatives of the aircraft's state of design and manufacture.
When will the AAIB release its findings?
The AAIB has stated it will issue preliminary findings within the stipulated timeframe as prescribed under applicable provisions and ICAO protocols. No specific date has been announced; further information will be released at the appropriate stage of the investigation.
Why is France's BEA involved in an Indian aviation investigation?
Under ICAO protocols, the investigation authority of the state of design and manufacture of an aircraft is entitled to participate in accident or incident investigations. Since the Airbus A320 is designed and manufactured in France, the BEA and Airbus representatives are extending technical assistance to the AAIB.
Are the investigation records public?
No. Certain records, statements, and medical information collected during the investigation are protected and confidential under the applicable investigation framework. The AAIB has requested that the media and public refrain from drawing conclusions based on incomplete or unverified information while the probe is ongoing.
