A surface test does not settle every internal question

A fictional fabrication record shows a clean visual examination and no relevant liquid-penetrant indication on an accessible nonporous surface. The service and drawing also require consideration of an internal fusion condition, but no appropriate internal examination evidence is supplied. A manager concludes that passing the surface test proves the complete weld is defect-free. Another worker proposes grinding an unrelated indication away and deleting the original result. This written exercise performs no testing or repair. Distinguish what the recorded methods can support, which additional basis is needed and how a traceable authorized repair and reinspection differ from simply making an unfavorable observation disappear from the record.