HAL is manufacturing under licence the bulk of the 272 Sukhois ordered from Russia in deals worth Rs 55,717 crore. IAF has inducted over 130 Sukhois, with a couple of squadrons even coming up in Tezpur and Chabua airbases in Assam in the last couple of years as "a strategic deterrent" against China.
Though IAF ordered a court of inquiry to ascertain the exact reason behind Tuesday's crash, what accentuated concerns is that preliminary reports held the mishap was due to "technical problems", possibly due to the failure of "fly-by-wire (FBW) control system".
"There was no engine failure or `flame-out'. It seems the pilots lost the controls of the fighter, leaving them with no option but to undertake planned ejection," said an officer.