On the 55th anniversary of the incident that killed three astronauts, the lessons learned persist.
The space shuttle Challenger STS-51L spaceflight ended in tragedy on Jan. 28, 1986 73 seconds after liftoff.
The challenge, naturally, is continuing to remain vigilant. But NASA's Dingell said the agency has improved its organizational processes to something that is stronger than even 10 years ago, let alone 55. The organizations are funded independently,"so there's no conflict of interest," Dingell said, and the safety standards those organizations call for"cannot be waived independently."
NASA reviews hazard reports to assess what could go wrong with a system, what possible causes could make that problem happen, and what controls can be implemented to prevent the causes from happening. The agency also examines every component on the spacecraft and assesses the effect of those components failing either independently, or in combination with other components, to make adjustments as required.
During EFT-1, he added, they targeted testing on 17 of the top 34 risks of the Orion program in an effort to reduce problems. There also have been many, many years of single-system testing and integrated systems testing on the ground informing the design of Artemis 1. "We have very detailed processes for tracking issues and nonconformances as we're building the spacecraft, that trace back to the design of the spacecraft. We culminate in a flight review with the head of the Lockheed Martin Space Company; that's called a president's mission success review," he said.
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