Su-30MKI fleet reported an average three engine failures a month in 2013-14

India’s Defence Minister Manohar Parrikar said in Parliament that between 2013 to 2014, the Su-30MKI suffered 35 engine failures, which is around 2.9 failures a month.

Sukhoi SU-30MKI
By g4sp (http://flickr.com/photos/10044448@N05/810243571) [CC BY-SA 2.0], via Wikimedia Commons

Parrikar explained that there were 69 instances of engine failure in the last four years. Thirty-three of them was because of fuel contamination, 11 were due to excessive vibration and eight was because of low pressure in the lubricant tanks.

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