The system was examined and the reported event was confirmed.The lamp had exceeded its rated life span.Therefore, the lamp was replaced to resolve the issue.The system was tested and found to meet product specifications.The system was manufactured on june 11, 2010.Based on qa assessment, the product met specifications at the time of release.The root cause of the reported event can be attributed to the lamp which exceeded its rated life.However, no problem was found with the lamp as it functioned to its expected rated life.(b)(4).
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