MOSCOW. May 22 (Interfax-AVN) - The ad hoc interdepartmental commission probing the contingency of the Progress M-27M resupply ship which was launched from Baikonur on April 28, 2015, is still at work, the Federal Space Agency (Roscosmos) has said.
"The Roscosmos commission will present its final conclusions in a later period," says a report by the Agency press service seen by Interfax-AVN on Friday.
The cause of the failed launch of the Progress M-27M ship was a loss of pressure in the engines of the launch vehicle's third stage, Roscosmos chief Igor Komarov said earlier.
"As a result of the work by the State Commission, telemetric data has been gathered which confirmed the out-of-control release that included two subsequent releases due to a loss of pressure, i.e. an opening first of an oxidizer tank and then the rocket's third stage fuel tank after the rocket's third stage propulsion units were switched off," Komarov said at the May 12 briefing commenting on the results of the state commission which probed the situation around the Progress M-27M resupply ship.
As a result, the third stage ended up 20 kilometers below the intended orbit and the ship 40 kilometers above the orbit, the Roscosmos chief said.
The commission was tasked to establish causes of the loss of pressure by May 22.