ML19319B794
| ML19319B794 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 09/19/1977 |
| From: | Lingenfelter J, Vallade S TOLEDO EDISON CO. |
| To: | |
| Shared Package | |
| ML19319B720 | List: |
| References | |
| NUDOCS 8001270261 | |
| Download: ML19319B794 (2) | |
Text
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1.lCENSEE EVENT REPORT CcNeaot.coc< l._ L 1 I I IJ G
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rs as gvgeef Of SCR Pvtow gl Auxiliary Feed Pump #2 was inoperable due to a planned adjustment to thej 7
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CAUSF oE SCRipleoN 7@89 The governor hung up at certain speeds, necessitating its adjustment.
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TOLEDO EDISON COMPANY DAVIS-BESSE NUCLEAR POWF.R STATION UNIT ONE SUPPLEMENTAL INFORMATION FOR LER NP-33-77-61 DATE OF EVE'iT: August 23, 1977 FACILITY: Davis-Besse Unit 1 IDENTIFICATION OF OCCURRE' ICE: Auxiliary Feed Pump 1-2 was inoperable due to a planned adjustment.
Conditions Prior to Occurrence: The plant was in Mode 2 with Power (MWT) = 0 and Load (MWE) = 0.
Description of Occurrence: On August 23, 1977, at 1045 hours0.0121 days <br />0.29 hours <br />0.00173 weeks <br />3.976225e-4 months <br />, Auxiliary Feed Pump 1-2 was rendered inoperable for performance of planned maintenance. The governor hung up at certain speeds, necessitating its removal from service for =aintenance.
The station entered the Action Statement of Technical Specification 3.7.1.2.
% Designation of Apparent Cause of Occurrance: Auxiliary Feed Pump 1-2 was deliber-ately rendered inoperable to perf orm maintenance on the governor valve.
Analysis of Occurrence: There was no danger to the health and safety of the public or to station personnel. The other Auxiliary Feed Pump, 1-1, was operable during the period that 1-2 was not.
Corrective Action: Auxiliary Feed Pump 1-2 was declared operable at 1945 hours0.0225 days <br />0.54 hours <br />0.00322 weeks <br />7.400725e-4 months <br /> on August 23, 1977, after passing Surveillance Test, ST 5071.01 Auxiliary Feedwater i
System Monthly Test. The station was then removed from the Action Statement of Technical Specification 3.7.1.2.
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l Failure Data: There have been no previcus occur Ances involving deliberate removal from service of Auxiliary Feed Pump 1-2 for perfor=ance of =aintenance on the governor valve.
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