IndiGo withdraws three A320neos from service after engine safety alert

An Airbus A320neo powered by Pratt & Whitney PW1100G engines

An Airbus A320neo powered by Pratt & Whitney PW1100G engines

February 09-Airbus warned Friday that Pratt & Whitney engines on some of its A320neo jets have another problem, and European air safety officials issued emergency restrictions, the Wall Street Journal reported online Friday.

According to Pratt & Whitney, the issue specifically pertains to the knife edge seal in the High-Pressure Compressor (HPC) aft hub on the PW1100G-JM engine.

An Airbus spokesman said the planemaker is "in discussions with customers about delivery schedules".

"Although we have not experienced any related issues with our engines, we immediately removed the plane from service", the airline said in a statement.

A senior official at the Directorate General of Civil Aviation (DGCA) said that EASA on Friday issued an emergency airworthiness directive for A320 neo planes fitted with PW1100 engines having a particular serial number. In addition to the grounding of aircraft by IndiGo, Airbus has postponed deliveries of the aircraft with the PW engines.

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Noting that the issue is isolated to a limited sub population of engines, P&W said it has identified the potentially affected engines. Airbus has informed its affected A320neo customers and operators.

In total, the grounding affects 15 to 20 recently delivered aircraft, the sources familiar with the matter said.

Airbus said P&W is investigating the root cause of this new finding with the full support of it. Eleven planes are now, according to the source, grounded the time to change the engines.

The problem stems from a component in the engine that can show early signs of wear, and it's located in an area that must withstand high pressure, an Airbus spokesperson said.

India's biggest airline and another budget carrier use A-320 Neos powered by PW engines. "We confirm of receiving the recommendations by Pratt & Whitney as well as EASA (European Aviation Safety Regulator) with respect to the A320neo aircraft powered by PW1100G - JM engines". Furthermore, various Pratt & Whitney-powered A320neo aircraft operated by IndiGo have suffered from mid-air engine snags because of which the flights had to make unplanned landings.

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