New Delhi: The Pilot-in-Command of Air India flight AI2379 from Phuket to Delhi that suddenly lost about 300 feet in altitude while cruising, has tested positive for psychoactive substances in the confirmatory test, sources said. His confirmatory test has now returned positive, sources said, as reported by India Today. There were 137 passengers, including three infants, and eight crew members on board. Thirteen passengers and four cabin crew members were taken to hospital after landing. Some crew members suffering spinal and neck injuries.