Ground test of third stage of PSLV (PS3) conducted successfully
Home / Ground test of third stage of PSLV (PS3) conducted successfully

November 12, 2026

The ground static test of the PSLV third stage (PS3) was carried out successfully at the Static Test Facility in Satish Dhawan Space Centre, Sriharikota on November 12, 2026.

Subsequent to the anomalies observed in the third stage of PSLV during the PSLV-C61/EOS-09 & PSLV-C62 / EOS-N1 missions, the configuration of the PS3 stage was revisited comprehensively w.r.t the design margins, raw material acceptance criteria, assembly procedures, and the quality checks that were followed so far. The configuration has been strengthened and essential improvements have been carried out in the nozzle configuration to improve design margins along with updated procedures in the acceptance of raw materials, assembly procedures and quality checks.

The mechanical interfaces have been strengthened with redundancy in the sealing systems and adequacy of the design margins have been verified. The updates in assembly procedures and Non-Destructive Tests (NDT) during the various phases of integration & transportation have been implemented and the new version of the PS3 Solid motor stage is realized and tested successfully.

Based on the detailed analysis & reviews of the test data, further tests are planned.