India grounds 11 A320neos with PW1100 engines

While the Gurugram-based Indi Go cancelled 47 of its 1,000-odd flights per day the Wadia Group-promoted Go Air said it had cancelled 18 flights

Indigo and GoAir 11 A-320 Neos planes with faulty PW engines grounded

On February 9, the European civil aviation regulator red-flagged PW1100 engines manufactured mid-2017 onwards.

Keeping in mind the safety of aircraft operations, A320nes fitted with PW1100 engines beyond ESN 450 have been grounded with immediate effect by DGCA.

The grounded planes, including the one that had a mid-air failure, all have Neo engines. Pratt & Whitney said in a statement that the issue affected a "limited sub-population of engines", without elaborating. IndiGo carries about 40 percent of domestic flyers, while GoAir has a market share of around 10 per cent.

After Monday's emergency landing, an IndiGo spokesman told The Times of India, "IndiGo flight 6E 244 from Ahmedabad to Lucknow after take-off experienced technical glitch with its (number) 2 engine". European regulators had deemed the planes safe if featuring only one affected turbine.

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In a statement, P&W said, it is working closely with customers to minimise disruption. "We are working to mitigate the Aircraft on Ground (AOG) situation by the end of the second quarter", it added. Of the 11 newly grounded Indian aircraft, as many as five may be able to recommence flying by swapping engines between affected planes. "This condition, if not corrected, could lead to dual engine shutdown". As recently as February, the DGCA had ordered IndiGo to not fly three of its jets.

A successor of the A320 family, the Airbus A320 neo is passenger aircraft that comprises four narrow-bodied aircraft variants: A318neo, A319neo, A320neo and A321neo.

Pratt replaced the original seal because it was degrading faster than expected, reducing the planned service interval.

"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.

Choubey said the regulator has put in place enhanced safety checks and was satisfied with the measures with respect to the issue of oil chip detection - an issue that had plagued A320 neos powered by P&W engines.

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