The probable cause of the July 2 failure of the Proton M/Block DM mission has been put down to the improper installation of the three yaw angular rate The Proton launch left its flight path shortly after lift-off.
Astra 2E that was to have launched in mid-July has been delayed until the investigation has been completed.
The ILS Failure Review Oversight Board (FROB) will start work on Friday and will provide an independent review of the investigation, probable root cause and corrective actions required prior to return to commercial flight, in accordance with US and Russian government export control regulations.
FROB – which consists of ILS customers, industry subject experts, and insurance industry representatives – will tentatively conclude by August 16.
The report was released to International Launch Services (ILS) following clearance from the Russian security service.
