IndiGo replaced its aircraft engines 69 times in 18 months
IndiGo said it has replaced the Pratt & Whitney engines on its 32 A320 Neo aircraft 69 times over the last 18 months. The airline called these engine glitches and "non-safety issues," adding that these were related to carbon seal or combustor chamber lining in the engines. Meanwhile, it recently grounded three A320 Neo aircraft over engine issues. 