The DGCA grounded the Airbus neos fitted with "PW1100 engines" with engine serial numbers 450 and asked both IndiGo and GoAir to not refit these engines with spare parts in their inventory. It and GoAir said they'd complied with the DGCA directive.
Back in 1990, A320 planes operated by then Indian Airlines were grounded following a deadly crash that had killed 89 people.
Of the 11 grounded planes powered by a specific series of Pratt & Whitney engines, eight belong to IndiGo and three to another budget airline, GoAir.
Three A-320s of IndiGo planes had already been grounded because of being equipped with the faulty engines.
In February European plane maker Airbus SE warned of new problems with the Pratt & Whitney engines on its A320neo planes, prompting European air safety officials to issue emergency restrictions (See: Airbus warns of new Pratt & Whitney engine problem). The aircraft "experienced [a] technical glitch with its Number 2 engine", says the carrier. The IndiGo airlines also expressed regret after thousands of passengers who faced inconvenience during the immediate grounding. It comes after three in-service shutdowns of aircraft with one PW1100 engine featuring the seal, two of which occurred in the past week, according to the DGCA.
India go top with Sri Lanka victory
In even further punishing fashion, Bangladesh won by a total of five wickets, and recorded their highest ever T20 score of 216/5. But thereafter, Manish and Karthik stitched an unbeaten 68-run partnership for the fifth wicket to guide India home comfortably.
As per practice, the defective engines were replaced with other engines overnight.
The grounding follows the emergency landing of an IndiGo A320neo in in Ahmedabad on a service from Lucknow on 12 March. "At IndiGo the safety and security of customers, crew and the aircraft is the top priority and can not be compromised at any time".
The cancellation of flights has hit air travellers as hundreds of passengers were stranded across the country.
IndiGo announced on its website the cancellations of some 47 flights across its domestic network for Tuesday. "We are working to mitigate the.situation by the end of the second quarter", said a statement from Pratt, a unit of United Technologies Corp.