ML19332C452
| ML19332C452 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 11/17/1989 |
| From: | Shafer W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19332C447 | List: |
| References | |
| 50-456-89-26, 50-457-89-26, NUDOCS 8911280143 | |
| Download: ML19332C452 (1) | |
Text
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!. g NOTICE OF VIOLATION
.l Commonwealth Edison Company Docket No. 50-456 Docket No. 50-457
'As a result of the inspection conducted from September 17 through October 31,
-1989, and in'accordance with 10 CFR Part 2, Appendix C - General Statement of -
Policy and, Procedure for NRC Enforcement Actions (1989), the following violation was identified:
Technical Specification 3.8.2.1 action statement c.(2) requires that, "With a DC bus inoperable or not energized on a shutdown unit (Mode 5 or 6), the affected DC bus may be energized f ror., the operating unit (Mode 1, 2, 3, or 4) opposite DC bus via the crosstie breakers after limiting the DC loads on the affected DC bus; operation may then continue for up to seven days or.open the crosstie breakers.
L Contrary to the above, on-September 15, 1989, the seven day time limitation was exceeded by about five hours.
I The DC crosstie was closed on September 8, 1989, at 3:58 a.m., and reopened on September 15, 1989,- at approximately 9:10 a.m.
This was done to provide power to bus 111 on Unit 1 in Mode 5 (cold shutdown) from bus 211 on Unit 2 in Mode 1 (operations).above 5%.
[
l Tiis is a Severity Level IV violation (Supplement I).
(No.50-456/39026-01(DRP);
L No. 50-457/89026-01(DRP))
p l-Pursuant to the provisions of'10 CFR 2.201, you are reouired to submit to this I
office within thirty days of the date of this Notice a written statement or L
explanation in reply, including for each violation:
(1) the corrective actions that have been taken and the results achieved;-(2) the corrective actionsthatwillbetakentoavoidfurtherviolations;and(3)thedatewhen l--
full compliance will be achieved. Considt. ration may be given to extending your response time for good cause shown.
L llfl1 (L&
b Dated W. D. Shafer/, Chief Reactor Projects Branch I y
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