The Gurgaon-based airline has taken off the ground two A320 Neos after it has received two new engines from P&W this month and more such grounded aircraft are expected to resume flying soon as it expects new engine deliveries to improve, official sources said.
Recurring engine glitches have forced the airline to ground nine of its A320 Neos and cancel over 600 flights between late June and early July. The airline currently has 140 A320s, of which 23 are P&W engine-powered A320 Neos.
Queries sent to both IndiGo and P&W seeking confirmation on the issue remained unanswered.
The largest airline had taken off nine A320 Neos from its fleet in the June quarter owing to engine issues. However, one of these planes was made operational later. As of today, only six A320 Neos are grounded, said another source in the civil aviation authority.
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Indigo had cancelled 667 flights in 13 days between June 21 and July 3 due to grounding of some planes. While 504 flights were cancelled between June 21 and June 30, the remaining 163 were cancelled on the first three days of July.
The Wadia group-run GoAir has also grounded three of its five A320 Neos due to engine issues.
"If India is giving you (P&W) so much business, when the new engines come, you allocate them to India. They have promised that by end-September, the situation will be normal," a senior DGCA official had said earlier.
With two A320 Neos back into flying, IndiGo has now only six of such planes grounded, said another source.
Official sources also claim that IndiGo was being compensated for the revenue loss its each aircraft is suffering due to the grounding.
"IndiGo is getting compensation from P&W for the revenue loss its each grounded aircraft is suffering every day due to non-operation," the official said. But both the airline and P&W did not respond on this claim.
With nine of its A320 Neos on the ground as of June 27, Indigo was forced to cancel 61 flights that day, and it was followed by cancelling of another 53 and 61 flights on June 28 and June 29. On June 30, it had cancelled 50 flights.
Similarly, on July 1, 50 flights were cancelled and on July 2, the cancellations rose to 53 flights, which came down to 51 cancellations on the next day.