AAIB steps in as confirmation awaited on whether Captain of Phuket-Delhi Air India flight failed dope test
Ministry of Civil AviationAircraft Accident Investigation BureauDirectorate General of Civil AviationAir India

AAIB steps in as confirmation awaited on whether Captain of Phuket-Delhi Air India flight failed dope test

The captain of an Air India flight from Phuket to Delhi, which experienced a sudden altitude loss on August 4, likely failed a post-flight dope test, pending confirmatory results. The incident, classified as serious, has led to both pilots being removed from duty during the ongoing investigation.

ThePrint9 August 2026 · 15:34 UTC
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The captain of an Air India flight from Phuket to Delhi likely failed a post-flight dope test following a serious incident on August 4, where the aircraft experienced a sudden loss of altitude of approximately 300 feet during cruise, injuring several passengers and crew members.

The Aircraft Accident Investigation Bureau (AAIB) has initiated an investigation into the incident, which has led to both pilots being removed from duty by the Directorate General of Civil Aviation (DGCA). The initial screening test, conducted at Delhi airport, indicated a result requiring confirmatory testing, with samples sent to a designated laboratory for further analysis.12

Air India stated, “We are aware that a post-flight screening test was conducted on the pilots in accordance with applicable protocols. However, the results of the test have not been shared with Air India, and we are therefore not in a position to comment on any findings.” The airline emphasized its commitment to regular drug testing of crew members in compliance with civil aviation regulations.

The Air India A320, operating flight AI2379, was carrying 137 passengers, including three infants, and eight crew members. The aircraft stabilized and landed safely in Delhi after the incident, but the investigation continues as authorities await the confirmatory test results.

Key Insight
“Until the confirmatory result is released, the initial screening does not establish the substance's nature or whether the pilot was impaired while operating the flight. The investigation's outcome could hinge on this confirmatory test, which remains pending.”
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ThePrint
“The captain of the 4 August Phuket-Delhi plane that experienced a sudden loss of altitude, leaving some passengers and crew members injured, has likely failed an initial post-flight dope test, but a confirmatory report is awaited, sources said on Sunday.”
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