The pilot was repatriated to India as a passenger, the airline confirmed, and a secondary alcohol test in Zurich remains pending. A preliminary test flagged the co‑pilot, prompting his removal from Air India flight AI‑151 before takeoff at 10:45 a.m. Air India delayed AI‑151 until the next day, the airline said. The flight’s crew received a temporary flight‑crew list while the investigation proceeded. The incident follows a separate Air India flight, AI‑2379, from Phuket to Delhi that lost 300 feet of altitude over Odisha. The 737‑800, carrying 137 passengers, landed safely after 20 passengers and four crew members were injured, and its commander, Sudeep Vashistha, later tested positive for marijuana. Air India's safety officer said the airline maintains a zero‑tolerance policy for drug and alcohol violations. The company has ordered fresh mandatory drug tests for all pilots, intensified awareness programmes, and reinforced reporting obligations, the spokesperson added. The co‑pilot remains suspended pending the final medical examination report, expected next week. Air India will cooperate with the Directorate General of Civil Aviation, and the flight will resume once clearance is obtained.