2016年9月1日 星期四

NASA OIG Report On Commercial Crew Certification

NASA OIG: NASA'S Commercial Crew Program: Update on Development and Certification Efforts

"Moreover, both companies must satisfy NASA's safety review process to ensure they meet Agency human-rating requirements. As part of the certification process, Boeing and SpaceX conduct safety reviews and report to NASA on potential hazards and their plans for mitigating risks. We found significant delays in NASA's evaluation and approval of these hazard reports and related requests for variances from NASA requirements that increase the risk costly redesign work may be required late in development, which could further delay certification. Although NASA's goal is to complete its review within 8 weeks of receipt of a hazard report, the contractors told us reviews can take as long as 6 months. We also found NASA does not monitor the overall timeliness of its safety review process. Given delays in the Commercial Crew Program, NASA has extended its contract with Roscosmos for astronaut transportation through 2018 at an additional cost of $490 million or $82 million a seat for six more seats. If the Program experiences additional delays, NASA may need to buy additional seats from Russia to ensure a continued U.S. presence on the ISS."



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