An Indigo Airbus A320-200N, registration VT-IVX performing flight 6E-563 from Kolkata to Chennai (India), was climbing out of Kolkata when the right hand engine (PW1127G) suffered an engine stall associated with high engine vibrations. The crew stopped the climb at FL280 and returned to Kolkata for a safe landing about 35 minutes after departure.

India’s DGCA reported on Mar 31st 2020, that the occurrence wsa rated a serious incident and is being investigated. A post flight inspection revealed damaged blades of the right hand engine’s low pressure turbine stage 3.