India having problems with Al-31FP turbofans

The Indian Air Force is having some issues with the Al-31FP jet engine that powers its Su-30MKI fighter.

The problem is so serious that Prime Minister Manmohan Singh is expected to raise the issue when he meets Russian President Dmitry Medvedev at an annual summit meeting.

Apparently the shaft bearings have failed in some of the engines even after switching to lubricants recommended by the manufacturer.
[thumb]http://www.hindustantimes.com/News-Feed/India/PM-to–raise-Su-30-MKI-engine-failure-with-Russia/Article1-783035.aspx[/thumb]