Serious incident to the Airbus A320 registered VT-ITW and operated by Indigo on 03/01/2019 near Chennai [Investigation led by AAIB / India]

Preliminary data based on the notification from the Indian authorities:

While climbing out of FL210, there was sudden loud bang sound heard by the crew and an engiine stall, overheat and sparks noticed on the right engine followed with smoke in cabin. The aircraft came back and landed to its departure aiport Chennai. There are internal damages confined to engine # 2.