Pilot tested positive for a psychoactive substance after the August 4 incident, but AAIB found no link between the drug use and the aircraft's hydraulic failure.
On August 12, the pilot-in-command of Air India flight from Phuket to New Delhi tested positive for marijuana during a confirmatory test for psychoactive substances.
Flight AI 2379, an Airbus A320 carrying 145 people, suffered a 300-foot mid-air altitude drop over Odisha on August 4, injuring 17 people, including four crew members, due to technical glitches.