Low pressure in propellant tank led to GSLV failure last year: ISRO

The GSLV-F-10 rocket had lifted off normally from Sriharikota on August 12 last year but the mission had to be aborted 307 seconds later as the launch vehicle veered off its charted course. The Failure Analysis Committee (FAC) set up by ISRO found that the GISAT-1 mission failed owing to a damage in the soft seal in a critical valve which resulted in lower pressure in the rocket"s liquid hydrogen (LH2) tank, the space agency said on Friday.