What happened
On August 19, 2019, an IndiGo Air Airbus A320-271N Neo was performing a takeoff roll from Guwahati Airport, India, en route to Kolkata Airport, India. During the takeoff roll, the aircraft's number 1 (left) engine experienced a stall warning and high vibration levels. Following these indications, the pilot rejected the takeoff.
There were no injuries resulting from the incident.
The investigation
An inspection of the engine, which is a Pratt & Whitney PW1127G-JM geared turbofan, was conducted following the event. The inspection confirmed a failure of a blade in the 3rd stage of the low pressure turbine. The NTSB appointed a U.S. Accredited Representative to assist the government of India with the investigation under ICAO Annex 13 provisions. The aircraft involved was registered as VT-IVO.