Incident Summary
A passenger aircraft operating a flight from Tambaram to Hyderabad experienced an engine failure while at cruising altitude. The captain declared an emergency and informed air traffic control about the failure. Shortly thereafter, the aircraft entered an uncontrolled descent and crashed near Dubagunta. All 22 occupants on board died in the accident.
Investigation Findings
The official investigation determined that the engine failed in flight and later detached from the aircraft. This detachment caused the separation of a wing, leading to the loss of control and subsequent crash. The root cause of the engine failure was identified as the failure of the high compressor disk, which was the consequence of fatigue cracks. These cracks were not detected during the last maintenance inspection.
Safety Recommendations
The investigation report likely includes recommendations to improve maintenance inspection procedures to detect fatigue cracks in critical engine components. However, no specific recommendations are provided in the source material.