ML18004B688
| ML18004B688 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 01/08/1987 |
| From: | Walker R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML18004B687 | List: |
| References | |
| 50-400-86-88, NUDOCS 8701150221 | |
| Download: ML18004B688 (2) | |
Text
ENCLOSURE 1
NOTICE OF VIOLATION Carolina Power and Light Company Harris Docket No. 50-400 License No. NPF-53 During the Nuclear Regulatory Commission (NRC) inspection conducted on November 17-21,
- 1986, a violation of NRC requirements was identified.
The violation
- involved a failure to conduct appropriate preoperational tests on engineered safety feature components.
In accordance with the "General Statement of Policy and Procedure for NRC Enforcement Actions,"
(1986), the violation is listed below:
10 CFR 50, Appendix B, Criterion V as implemented by CP&L accepted gA program (FSAR Chapter 17.2) requires that activities affecting quality shall be prescribed by documented instructions, procedures or drawings of a type appropriate to the circumstances and shall be accomplished in accordance with these instructions, procedures or drawings.
Contrary to the above, one example of inadequate preoperational testing of engineered safety features (ESF) components and two examples 'of a failure to conduct preoperational tests on ESF components to demonstrate they will.
perform in service as follows:
Preoperatfonal test procedures (5095-P-01, 02, 07,
- 08) failed to adequately test the SN and SM relay circuitry which is designed to trip open the Emergency Diesel Generator (EDG) lA-SA and 1B-SA output electrical breaker upon a receipt of a safety injection signal, when the EDG is operating and connected to offsite power.
Significant wiring errors went undetected in the SN relay circuitry until a
surveillance test (OST-1823) of the EDG 1A-SA on October 25,
- 1986, showed that the output breaker would not trip open when required.
Preoperational tests were not performed to verify the design function of the PX blocking relays when the 1A-SA or 1B-SB sequencer panel is placed in the "test mode."
The PX blocking relay feature was not subjected to a simulated safety injection signal nor actuation of the "test stop" button.
These signals are designed to de-energize any sequencer program relays before the PX blocking relays are
- opened, thus preventing the starting of ESF equipment out of sequence or during normal plant operations.
8701150221 Sb0108 PDR ADOCK 05000400 6
Carolina Power and Light Company Harris Docket No. 50-400 License No. NPF-53 Preoperational test procedures were not performed to test the design function of the 27UV blocking relay for the 6.9 KV ESF buses.
Preop-erational test 5175-P-Ol did not fully test the same blocking relay in the 480V buses.
This is a Severity Level IV violation (Supplement II).
Pursuant to the provisions of 10 CFR 2.201, Carolina Power and Light 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, consideration will be given to extending the response time.
FOR THE NUCLE R
ATORY COMMISSION Dated at Atlanta, Georgia this/+day of~ 1987 1
Roger D. Walker,g irector Division of Readtor Projects