"The SuperDraco engines of the emergency response systems of the Dragon 2 spacecraft were being tested. For this purpose, the return mechanism of the unmanned spacecraft Dragon 2, which made a test flight to the ISS in March, was used. As a result of an accident, an explosion occurred that led to the destruction of the return mechanism … It is necessary to deal with the causes of the accident that took place during the tests. All this would take a long time. Now, the launch of the Dragon 2 spacecraft in July is out of the question. [It can take place] not earlier than the end of the year", the source said.
US aerospace manufacturer SpaceX said earlier in the day that an "anomaly" had occurred during the static fire tests of the abort engines of its crewed Dragon spacecraft, also known as Dragon 2. The tests were carried out on Saturday at SpaceX's test stand in Cape Canaveral, located in the southeastern US state of Florida.
NASA held the successful test flight of the unmanned Dragon mission to the ISS, known as Demo-1, in March.