According to FRA regulations, what is advised if a non-class specific defect is found?

When a non-class specific defect is found on the railway, taking the track out of service is advisable to ensure safety. This approach provides an immediate response to a potentially hazardous situation, allowing for a thorough investigation and necessary repairs without the risk of accidents or further damage. By removing any trains from operating on that segment of the track, it safeguards both personnel and passengers until the issue is formally addressed.

While other options may involve risk mitigation strategies, like imposing speed limits or increasing monitoring frequency, they do not offer the same level of protection that taking the track out of service does. Immediate repairs could be seen as necessary in some situations, but they might not address underlying safety concerns adequately if the track is still in use. Thus, prioritizing safety by taking the track out of service is the most prudent course of action under FRA regulations when encountering a non-class specific defect.