IndiGo will have to ground 11 Airbus A-320 neo while GoAir will have to ground three such aircraft powered by certain Pratt and Whitney engines following instances of engine failures during flight. To be sure, only a handful of A-320 Neos in IndiGo and GoAir fleets have this specific series of PW engine.
The aircraft were grounded after an IndiGo flight to Lucknow was forced to make an emergency landing in Ahmedabad due to the latest in a series of engine problems on the super fuel-efficient aircraft.
The Airbus A320 Neo plane had 186 passengers on board.
"Hundreds of passengers were stranded after a number of flights were cancelled by both IndiGo and GoAir in the wake of some aircraft going out of operations due to the DGCA order", a source said.
According to reports, eight aircraft operated by India's biggest low-priced carrier- IndiGo that is owned by InterGlobe Aviation while three aircrafts are operated by its rival GoAir.
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Last week, Minister of State for Civil Aviation remained evasive on whether there are any plans to ground these planes and had said that the ministry has been working very closely with safety regulators around the world to decide the best course of action for the P&W neo engine.
Pratt & Whitney is an American aerospace company that manufactures both military and civil aircraft engines. That's not acceptable, according to the Indian regulator, which said the manufacturer had "no concrete proposal in place at this stage". It and GoAir said they'd complied with the DGCA directive.
Three A-320s of IndiGo planes had already been grounded because of being equipped with the faulty engines. "When the technical work is over and the engine is considered safe, only then can these engines be used", he said.
"The affected passengers would be accommodated on other flights on our network", IndiGo said in a statement.
Out of them, 32 are with IndiGo and 13 are with GoAir.