Aviation regulator DGCA on Monday ordered SpiceJet to conduct boroscopic inspection of 28 Pratt and Whitney 150A engines on 14 Q400 turboprop aircraft within one week.
On October 12, a SpiceJet Q400 plane with 86 passengers on board conducted an emergency landing in Hyderabad as smoke was detected in cabin when it was mid-air.
In a statement on Monday, the Directorate General of Civil Aviation (DGCA) said that during the preliminary investigation, it found engine oil in engine bleed-off valve which had led to the oil entering the aircraft's air-conditioning system, resulting in smoke in the cabin.
Therefore, the engine oil samples from