The AAIB preliminary report stated that the pilot of the Air India flight tested positive for psycho-active substances. ^[1] The Aircraft Accident Investigation Bureau (AAIB) released a preliminary report concerning an Air India flight incident between Phuket and Delhi. ^[2] The AAIB preliminary report confirms that the pilot-in-command failed a drug test and used psychoactive substances during the flight. ^[3] The flight, operated by an A320 aircraft, experienced a sudden drop of 300 feet in altitude due to turbulence, which injured several passengers. ^[4] Flight AI 2379, carrying 137 passengers and 145 people on board including six cabin crew and two flight crew, lost all three hydraulic systems within seconds while cruising at 36,000 feet on August 4. ^[5] The hydraulic failure caused an altitude upset where the aircraft gained 372 feet and fell by 292 feet from its assigned altitude of FL360, injuring 24 unbelted passengers and crew. ^[6] The AAIB expressed serious concern regarding the incident and the pilot's status. ^[7] The AAIB has recommended that action be taken against the pilot following the positive test result. ^[8] The AAIB has asked the Directorate General of Civil Aviation (DGCA) to take appropriate action to prevent the abuse of psychoactive substances by flight crew. ^[9] The loss of the green hydraulic system was detected at 9:32:48am IST, followed four seconds later by the loss of the blue and yellow systems, causing the autopilot to disengage and triggering a stall warning. ^[10]