Description of Driving Event:
Environmental Regulations Resulting in Manufacturing Process and Test Certification Changes for RSRM
Lesson(s) Learned:
There are many material and process changes in work for the RSRM in response to both environmental regulations and obsolescence issues. A vital part of the certification program for these changes is the demonstration of the acceptability of the changes during an FSM firing. At present, FSM firings are scheduled at 2-year intervals instead of the 1-year or 18-month intervals previously used.
Recommendation(s):
Considering the large number of changes in RSRM materials and processes and the importance of proper simulation of operating conditions in any certification test program, NASA should reevaluate its decision to have 2 years between FSM firings.
Evidence of Recurrence Control Effectiveness:
The RSRM project presented an assessment of static test motor frequency to the PRCB on February 27, 1997, and recommended static tests at 1-year intervals. The recommendation was accepted by the PRCB. An initiative is under way to ensure that the maximum possible benefit is obtained from each test.
Documents Related to Lesson:
N/A
Mission Directorate(s):
- Space Operations
- Exploration Systems
Additional Key Phrase(s):
- Aerospace Safety Advisory Panel
- Environment
- Energy
- Ground Operations
- Hazardous/Toxic Waste/Materials
- Policy & Planning
- Safety & Mission Assurance
- Test & Verification
Additional Info:
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