Air India A320 dropped 300 feet, lost flight controls due to hydraulic failure

An Air India Airbus A320 experienced a significant loss of control during a flight from Phuket to New Delhi on August 4, dropping approximately 300 feet and injuring 24 passengers. A preliminary analysis by Airbus revealed that all three of the aircraft's hydraulic systems lost pressure in rapid succession.

For about four seconds, pilots were unable to control the elevators and ailerons, crucial for managing the aircraft's pitch and banking. The plane pitched upward, and the first officer's attempts to correct with full nose-down input were initially unresponsive. The hydraulic systems reportedly recovered within seconds.

Airbus has not yet determined the cause of the hydraulic pressure loss. The aviation manufacturer has requested Air India to test the hydraulic systems, pressure sensors, and switches. They also require an inspection of wiring and detailed accounts of recent hydraulic maintenance and pilot experiences.

Additionally, the aircraft experienced forces exceeding specified limits during the sudden altitude change. Airbus has instructed Air India to inspect the plane for potential structural damage as the investigation continues.