ML19316A389
| ML19316A389 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 04/07/1978 |
| From: | DUKE POWER CO. |
| To: | |
| Shared Package | |
| ML19316A386 | List: |
| References | |
| RO-269-78-10, NUDOCS 7912110649 | |
| Download: ML19316A389 (1) | |
Text
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DUKE POWER COMPANY OCONEE UNITS 1,2,3 Report Number: R0-269/78-10 Report Date: April 7, 1978 Occurrence Date: March 24, 1978 Facility: Oconee Nuclear Station, Seneca, South Carolina Identification of Occurrence: Failure to Verify Keowee Hydro Unit 2 Operability Conditions Prior to Occurrence: Unit 1 100% FP Unit 2 100% FP Unit 3 100% FP Description of Occurrence:
On March 23, 1978 at 0749 Keowee Hydro Unit 1 was removed from service for planned breaker maintenance in accordance with procedure MP/0/A/
2001/2.
Keowee Unit 2, the standby unit, was verified operable at 0722 and at 1544. The verification at 0722 satisfied the "erification with-in one hour requirement of Specification 3.7.26b, but the reverification at 1544 failed to meet the requirement to verify the standby Keowee unit operable within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
Apparent Cause of Occurrence:
The cause of this occurrence was a personnel error.
Personnel failed to properly use the station procedure " Removal and Restoration of Equip-ment" to document the testing requirements when Keowee Unit 1 was removed from service.
Analysis of Occurrence:
Keowee Unit 2 was verified operable at 1544. Additional sources of off-site power as well as Keowee Unit 2 were available to provide emergency power for the Oconee Station if it had been required.
Thus, the health and safety of the public were not endangered by this incident.
l Corrective Action:
Operating personnel concerned with this incident were reviewed by the l
Operating Engineer to assure that they fully understood the required actions.
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The procedure for removal of a Keowee Unit from service has been revised to include a checklist to assure that the requirements of Technical Spe-cification 3.7.2 are complied with.
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