The flight was inducted for regular commercial operation in the first week of this month. On August 10, after operating from Indore to Bengaluru (flight no 6E708), it was grounded. Reportedly an oil/magnetic chip was found in the engine.
Sources said IndiGo had to seek special permission from aviation watchdog Directorate General of Civil Aviation to fly this aircraft from Bengaluru to New Delhi on August 12 as a "ferry aircraft" to undergo engine replacement. Ferry aircraft does not carry passengers.
No comments were available from the airline about the other six A320 neo planes which were grounded by it between July and the first week of this month.
P&W had in a statement said that the grounded aircraft could be back in air from this month onwards. The sixth aircraft was grounded on August 6 due to P&W engine issues.
P&W engine woes had forced the airline to ground some of the A320 neo aircraft on earlier occasions also.
On August 10, InterGlobe's Chief Operating Officer Wolfgang Prock-Schauer had expressed full confidence in A320 neo planes. InterGlobe operates IndiGo.
At present, IndiGo has a fleet of more than 170 aircrafts, including 40 A320 neo planes.
During February and March this year, 14 planes - 11 of IndiGo and three of GoAir - were taken out of operations due to P&W engine issues on the directions of the aviation regulator after a series of mid-air shut downs were reported by the two carriers.
The grounding of the IndiGo flights during this period had hit 1.08 lakh passengers.
In the 2017 June quarter, IndiGo grounded nine A320 neo planes due to engine issues. The grounding had also resulted in the airline cancelling 84 flights on a particular day last year.
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