What happened
On April 1, 2019, an Indigo Airbus A3pend320 experienced a failure of its number 1 (left) engine during the climb phase. The aircraft, registration VT-IVB, was climbing through FL160 after departing from Jaipur Airport (JAI) in India.
The crew reported hearing a loud bang, which was followed by an engine stall and an exhaust gas temperature overlimit. In response to the engine failure, the crew performed an air turn back and completed a successful single-engine landing. There were no injuries resulting from the event.
The investigation
An inspection of the right engine conducted after the landing revealed damage to the low pressure turbine stage 3 blades. The NTSB appointed a U.S. Accredited Representative to assist the government of India's investigation as the state of the engine manufacturer.