NEW DELHI: Airbus is sending experts to New Delhi on Tuesday (Aug 11) to assist investigators probing an Air India flight that plunged dramatically, injuring 17 in a terrifying mid-air ordeal, the company said.The probe into the flight comes as “confirmatory” psychoactive drug test results are awaited for the chief pilot.The Airbus A320, carrying 137 passengers and eight crew, lost around 91m on Aug 4 while flying from Phuket in Thailand to New Delhi, before stabilising and landing safely.Air India, in a statement after the plane landed, said it had “experienced a sudden loss of altitude”, adding that it was…