ML19224C741
| ML19224C741 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 06/07/1979 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Daltroff S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| References | |
| NUDOCS 7907060121 | |
| Download: ML19224C741 (1) | |
Text
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%c UNITED STATES
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NUCLEAR REGULATORY COMMISSION REGION I 7,
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G31 PARK AVENUE O +.... f' KING OF PRUSSI A, PENNSY LV ANI A 19406 1 9 June 7,1979 Dockat Nos. 50-277 50-278 Philadelphia Electric Company ATTN: Mr. S. L. Daltroff Vice President Electric Production 2301 Market Street Philadelphia, Pennsylvania 19101 Gentlemen:
This Information Notice is provided as an early notification of a possibly significant matter.
It is expected that recipients will review the information for possible applicability to their facilities.
No specific action or response is requested at this time.
If further NRC evaluations so indicate, an IE Circular, Bulletin, or NRR Generic Letter will be issued to recommend or request specific licensee actions.
If you have questions regarding the matter, please contact this office.
Sincerely, Y/
oyce H. Grier Director
Enclosures:
1.
IE Information Notice No. 79-15 with Attachment 2.
List of IE Information Notices Issued in 1979 cc w/encis:
W. T. Ullrich, Station Superintendent Troy B. Conner, Jr., Est;uire Eugene J. Bradley, Esquire Raymond L. Hovis, Esquire Warren Rich, Esquire
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ENCLOSURE 1 UNITED STATES NUCLEAR REGULATOR'f COMMISSION 0FFICE OF INSPECif0N AND ENFORCEMENT WASHINGTON, D.C.
20555 IE Information Notice No. 79-15 Date: June 7, 1979 Page 1 of 3 DEFICIENT PROCEDURES Sunnary On June 2,1979, at Arkansas Nuclear One - Unit 1, while observing conditions in the control room, an NRC inspector discovered an operational deficiency that could have resulte? in the emergency feedwater system remaining isolated during subsequent power operation.
Description of Circumstances On June 2 while Arkansas Nuclear One - Unit 1 was preparing for startup, an NRC inspector in the control room found that during a su aillance test of the main feedwater check valves, the controls of h "mergency feedwater system were positioned so that the system could i./. automatically respond if needed.
The NRC inspector found that the test procedure being used by the licensed operators did not include, as it should have, instructions either to bypass the emergency feedwater system or to return it to normal.
The plant operators, without approved procedures covering this aspect of the test, bypassed the controls that would have started the feedwater system automatically.
Lacking a procedural requirement to return the system to normal, there was no assurance that emergency feedwater would be provided automatically if needed.
Following the Three Mile Island accident, the NRC required that operators be trained to initiate promptly the emergency feedwater system manually if it does not come on automatically.
Thus, while no immediate safety hazard existed at the Arkansas Urit 1 plant because of the improper action, the NRC staff is concerned about the potential safety hazard of leaving the emergency feedwater system in the bypassed condition, about the possibility that other proceaures at the Arkansas plant may be deficient and about the fact that the operators deviated from procedures in performing the surveillance test.
Arkansas Power and Light Company has returned the plant to cold shutdown. The June 2,1979, MC Order confirmed the requirement for a cold shutdown until the Commission s atf is satisfied with the utility's method of controlling the development of operating procedures, the adequacy of existing procedures, and until there is assurance that operators "' Wf;;h;M,gdW rr.orader4R ----_._
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