India’s aviation ministry said Sunday that an Air India pilot whose flight plunged dramatically in turbulence, injuring 17 passengers and crew is undergoing a “confirmatory” psychoactive drug test. “The screening test in respect of the Pilot-in-Command (PIC) indicated a result requiring confirmatory testing,” it said. “Samples have accordingly been sent to the designated laboratory for confirmatory analysis, and the final report is awaited.” The ministry said the flight has been classified as a “Serious Incident”, and that India’s Aircraft Accident Investigation Bureau (AAIB) has launched an investigation. Both pilots have been removed from the flying roster pending outcomes of the investigation.