 Complete the following phrase:  Arguably the most significant event from this launch was the ET bipod ramp shedding a chunk of foam, estimated to be 4x5x12, that broke away and hit the lower left SRB-ET Attach Ring near the Integrated Electronics Assembly IEA box causing a dent 4 wide and 3 deep into the solid metal. Prior to approval for the next mission, the situation was analyzed and NASA decided to press ahead under the justification that The ET is safe to fly with no new concerns and no added risk of further foam strikes. This fateful decision set the stage for the 