2018 UY Aviation King Air C90 crash

The Aircraft Accident Investigation Board released the final investigation report in Dec 2018. The probable cause of the accident as per the report was a stall caused by lack of situational awareness due to spatial disorientation triggered by deteriorating weather, a transition from ILS(IMC) to visual flying (Partial VMC) and unexpected bank owing to differential engine power. The report indicts the Indian DGCA for violation of regulations in granting the Air Operator Permit.

The aircraft VT-UPZ was previously owned by the Uttar Pradesh government. In 2014, the aircraft had an accident[10] in Allahabad in which there was substantial damage, but the DGCA investigation termed it as a minor incident. Taking advantage of this report, the certificate of airworthiness was not cancelled. Over the next decade, the aircraft changed ownership and was transported to Mumbai where the repair work was carried out under the supervision of the DGCA.

Capt. Amit Singh FRAeS an aviation safety and human factors blogger carried out a detailed independent analysis of the accident and submitted the report to the Secretary, Ministry of Civil Aviation, India.[11] Capt. Amit Singh has stated that the AAIB investigation is manipulated and does not correctly identify the cause of the accident, therefore, needs an investigation by a court of inquiry. The investigation has completely shielded the operator who was granted an Air Operator Permit by the Indian DGCA without having filled the mandatory post of the Chief of Safety.

As per the technical report, both engines malfunctioned in flight probably due to which the aircraft crashed.