# NRC CAL – NOV (Yellow)
> **EA-05-176** · CAL · Issued — · Reactor Licensees
## Action
- **EA Number:** EA-05-176
- **Licensee:** NOV (Yellow)
- **Category:** Reactor Licensees
- **Action type:** CAL
- **Date issued:** —
## Description

On December 21, 2005, a Notice of Violation was issued for a violation associated with a Yellow SDP finding involving the licensee's failure to ensure that the safety-related function of the auxiliary feedwater pumps, the 480 volt safeguards buses, the safe shutdown panel, the emergency diesel generators, and the 4160 volt safeguards buses, each Class 1 systems or components, would be protected from serious flooding or excessive steam releases as a result of random or seismically induced failures of non-Class 1 systems in the turbine building. The violation cited the licensee's failure to implement design control measures as specified in 10 CFR Part 50, Appendix, B, Criterion III, "Design Control".

## Source
- [Full enforcement letter (PDF)](https://www.nrc.gov/docs/ML0535/ML053570014.pdf)
- [NRC Reactor Licensees index](https://www.nrc.gov/reading-rm/doc-collections/enforcement/actions/reactors/)
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