Equity infusion hinges airline's financial health, control. Analysts say overhaul needed for survival. : Jet Airways proposed stake sale in loyalty programme and equity infusion in the airline is facing challenges but analysts say that the sale alone will not be sufficient to tide over the financial crisis. An overhaul of business along with fleet and network reduction may be required to save the airline from collapse, they said. A report in Mint newspaper on Wednesday said private equity firms Blackstone and TPG Capital have second thoughts over-investment in Jet Airways loyalty programme.