ML14175B446
| ML14175B446 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 12/09/1986 |
| From: | Walker R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML14175B445 | List: |
| References | |
| 50-261-86-28, NUDOCS 8612150385 | |
| Download: ML14175B446 (2) | |
Text
ENCLOSURE 1 NOTICE OF VIOLATION Carolina Power and Light Company Docket No. 50-261 H. B. Robinson License No. DPR-23 During the Nuclear Regulatory Commission (NRC) inspection conducted on October 11 -
November 10,
- 1986, a violation of NRC requirements was identified.
The violation involved failures to follow procedures.
In accordance with the "General Statement of Policy and Procedure for NRC Enforcement Actions," 10 CFR Part 2, Appendix C (1985), the violation is listed below:
10 CFR 50, Appendix B, Criterion V, as implemented by Section 6 of the CP&L Corporate QA Manual, requires that activities affecting quality be accomp lished in accordance with documented instructions, procedures, or drawings.
- a.
Licensee Abnormal Operating Procedure AOP-010 (Revision 1), at Step 3.1.3, prescribes the manual insertion of control rods to maintain reactor power and core average temperature following the loss of the heater drain pumps.
Contrary to the above, activities affecting quality were not accomp lished in accordance with AOP-010, in that the licensee attempted to use emergency boration, instead of control rods, to maintain reactor power and core average temperature subsequent to the loss of the heater drain pumps. Overboration of the primary system resulted in a reactor trip on low pressurizer pressure.
- b.
Maintenance Surveillance Test Procedure MST-014, "Steam Generator Pressure Protection Channel Testing," requires the sequential execution and independent verification of certain steps which could, if performed improperly, lead to reactor trips.
Contrary to the above, activities affecting quality were not accomp lished in accordance with MST-014 in that the control operator involved in the test failed to position the Steam Flow Channel Selector Switch as prescribed by Step 7.6.5; and, the Instrumentation and Control Technician responsible for the proper execution of MST-014 failed to verify that the B Steam Generator Flow Channel Selector Switch was shifted from the 484 to the 485 position.
Execution of subsequent steps resulted in a reactor trip as a result of low water level coincident with steam flow greater than feed flow in "B" steam generator.
This is a Severity Level IV violation. (Supplement 1)
Carolina Power.and Light Company 2
Docket No. 50-261
. H. B. Robinson License No. DPR-23 Pursuant to the provisions of 10 CFR 2.201, H. B. Robinson is hereby required to submit to this Office within 30 days of the date of the Letter transmitting this Notice, a written statement or explanation in reply, including: (1) admission or denial of the violation, (2) the reason for the violation if admitted, (3) the corrective steps which have been taken and the results achieved, (4) the corrective steps which will be taken to avoid further violations, and (5) the date when full compliance will be achieved. Where good cause is shown, consider ation will be given to extending the response time.
FOR THE NUCLEAR REGULATORY COMMISSION Original Signed by Luis A. Reyes
/for Roger D. Walker, Director Division of Reactor Projects Dated at Atlanta, Georgia this 9day of December 19 86