India: IndiGo flight reports engine stall warning mid-air after big jet crosses in opposite direction

In a rare occurrence, an Airbus A320 operated by IndiGo was flying over the Guwahati to Mumbai route on Monday at roughly 36,000 feet when the captain noticed an Engine 1 stall warning signal that quickly vanished.

"IndiGo flight 6E-6812 witnessed an engine 1 stall warning signal for a moment due to a bigger jet of Boeing 777 aircraft passing in the opposite direction of IndiGo's A320 aircraft which creates 'Wake Turbulence' mid-air," an official told ANI.

Soon after witnessing wake turbulence by Emirates Boeing's (B-777) big plane, the IndiGo's aircraft was cruising generally to its destination without any difficulty.

The Mumbai-bound IndiGo plane took off as per schedule from Guwahati airport at around 6:32 am in the morning.

According to sources, the 'wake turbulence' arose due to the large jet aircraft crossing in the opposite direction of the Indigo aircraft.

According to the Federation Aviation Administration (FAA), the largest US-based transportation agency, it is clearly mentioned that sometimes the wake turbulence can be negligible or sometimes it can be disastrous.

"A wake turbulence encounter can range from negligible to catastrophic. The impact of the encounter depends on the weight, wingspan, size of the originated aircraft, distance from the originated aircraft, and point of vortex encounter," FAA said on wake turbulence.

In addition, during FAA wake turbulence, pilots are always prepared for turbulence in the sky and the role of the pilot is very important in dealing with the conditions at that time.

IndiGo declined to make any official comment on the above incident.