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AAIB Report: Air India Pilot Tested Non-Negative for Drug Use

Last updated 5 Oct, 19:35 IST
SOURCEAircraft Accident Investigation Bureau · Hindustan Times · The Hindu BusinessLine
WHAT WE KNOW
The Aircraft Accident Investigation Bureau released a preliminary report on Friday into an Air India Phuket-Delhi flight that lost all three hydraulic systems within seconds while cruising at 36,000 feet on August 4.123 The pilot-in-command's confirmatory test for a psychoactive substance was non-negative, while the co-pilot's sample was negative, AAIB said.13 AAIB recommended that DGCA take appropriate action to prevent abuse of psychoactive substances, and said the report did not establish any link between this finding and the altitude upset.123
IN NUMBERS
Passengers on board
145 persons
04 August 2026
Altitude gain
372 ft
04 August 2026
Altitude loss
292 ft
04 August 2026

From Aircraft Accident Investigation Bureau · Official. Numbers as printed in the document.

TIMELINE
5 Sept
07:48
A second, independent outlet carries it, with 1 new detail
Hindustan Times · Outlet · now Reported
4 Sept
13:50
Adds 3 new details
4 Sept
12:53
First reported

Also carried by Aircraft Accident Investigation Bureau. Full storyline

Flight AI 2379 from Phuket to Delhi was operated with an Airbus A320-251N aircraft bearing registration VT-EXO, and had 145 people on board, including 2 pilots and 6 cabin crew. The aircraft took off from Phuket at 1.41am UTC (7.11am IST). Hindustan Times and The Hindu BusinessLine reported that the accident occurred on 04 August 2026 at approximately 0402 UTC (0932 IST). At 9.32:43am IST, while cruising at FL 360, the aircraft's flight-control system detected a loss of the green hydraulic system. At 9.32:48am IST the autopilot disengaged and a continuous repetitive chime sounded. Three seconds later, the stall warning was triggered for two seconds, and four seconds after that, the loss of the blue and yellow systems was also detected. The aircraft encountered altitude upset, gaining 372 ft and then falling by 292 ft from its assigned flight level. No adverse weather was reported by the flight crew or air traffic control. The co-pilot, who was the pilot flying, responded to the situation before the pilot-in-command took over the controls. At 9.32:52am IST, the Blue hydraulic system recovered, and a few seconds later the Yellow and Green hydraulic systems also recovered, allowing the flight to resume normal operations. Hindustan Times and The Hindu BusinessLine reported that the occurrence was classified as an accident based on the evidence collected and the assessment of injuries sustained by the persons onboard. The crew examined the situation in the cabin and decided to continue to Delhi rather than divert to the nearest enroute airport, and AAIB noted that this decision was made despite the flight crew being apprised about injuries in the cabin. After the flight landed at Delhi airport, 24 people were given medical assistance, and of them four had serious injuries. Both pilots underwent breath-analyser examinations, with satisfactory results.

Hindustan Times and The Hindu BusinessLine reported that Air India had started voluntary testing of 100 per cent of its pilots as a further step to reinforce its safety-first approach.

NOT YET CONFIRMED

Reported in coverage, but we could not match these to a source document. They are not part of the story above.

  • Medical assistance was provided to total 24 persons onboard (20 passengers and 04 cabin crew) by the airport medical team.
  • The accident site was enroute in the Kolkata Flight Information Region.
  • The aircraft departed from Phuket International Airport and intended to land at Indira Gandhi International Airport, Delhi.
SOURCES
2
Outlet · 5 Sept
3
The Hindu BusinessLine
Outlet · 4 Sept · document 1document 2
Cite the source, not this page. Verification states are editorial judgements at a point in time, not certifications.
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