ML19322C554
| ML19322C554 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 08/21/1979 |
| From: | Stello V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Bradford P NRC COMMISSION (OCM) |
| References | |
| TASK-TF, TASK-TMR NUDOCS 8001170885 | |
| Download: ML19322C554 (5) | |
Text
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AUG 211979
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@ j@f MEMORANDUM FOR:
Commissioner Bradford
'(nmG T. A.P.chrn THRU:
Lee V. Gossick, Executive Director for Operations FROM:
Victor Stello, Jr., Director l
Office of Inspection and Enforcement j
SUBJECT:
AUXILIARY FEE 0 WATER SYSTEM -- MEMORANDUM DATED JULY 31, 1979 The subject memorandum raised three questions concerning the operabilii.y of auxiliary feedwater systems at operating nuclear power facilities.
i Questions and related responses are as follows:
Question -- If an inspector had found the auxiliary feedwater system out of service in an operating nuclear plant before Three Mile Island, what steps should have been taken?
Response -- The facility Technical Specifications establish specific oper-ability requirements for auxiliary feedwater systems at operating facilities.
A copy of related Standard Technical Specifications for Westinghouse facilities, as an example, is enclosed for your information.
If an inspector detected a condition where auxiliary feedwater system operation was not in conformance with the operability and related action statement language in the facility Technical Specification, the matter would be immediately brought to the attention of on-site licensee management.
Normally, licensee personnel would take prompt action to bring the facility into compliance with regulatory requirements.
In the event that a licensee does not initiate prompt action, the problem would be immediately escalated to Regional Office man ~agement who would contact a higher level of licensee management to resolve the matter. The immediate efforts would be to get the system out of a degraded mode and readily available for service.
If higher level action is required to accomplish th's, it would be done.
Once the imme-diate problem has been resolved, an assessment of the condition that permitted the degradation would be made.
It would be discussed with Headquarters, and based on the significance of the item (i.e., simple valve closure or major break-down in the licensee's management control system) and-the licensee's past perfor-mance, appropriate followup Headquarters action would be taken.
This latter action may take the form of a telephone call to senior licensee management and/or issu-ance of an Order.
It should be noted that these actions would be completed within a short time period following detection of the problem.
Subsequent actions woald include f,ormal documentation and appropriate enforcement action which wculd be directed to the licensee for items of noncompliance asso-ciated with this and other regulatory requirements.
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l Commissioner Bradford -
Questions -- Was such a condition ever found?
If so, what action was taken?
Response -- A survey of our Regional Offices :!id not reveal any instances where an auxiliary feedwater system was found to be "out of service" during a routine inspection.
One case occurred after the TMI accident which involved Arkansas Nuclear 1.
This event took place on June 2,1979, as the facility was preparing for start-up following refueling and after taking steps to cortply with requirements imposed by NRC on Babcock and Wilcox designed reactors following the March 28 accident at TMI.
At that time our resident inspector was performing a routine inspection and noted that the emergency feedwater system (E3F) was locked out of the auto-matic initiation mode.
The plant was in hot shutdown condition and a main feed-water check valve back leakage surveillance test was in progress.
The surveil-lance test procedure did not specify locking out the ESF automatic initiation feature nor assuring that the ESF automatic initiation feature would be returned to service.
During a telephone conversation on June 2, 1979, a licensee Vice President agreed to immediately proceed to a cold shutdown condition and to remain in that condition until confirmation in writing by the Acting Director, IE, that the following conditions for startup had been satisfactorily accomplished:
(1) the licensee shall evaluate and modify as appropriate its methods for the development, review and approval of procedures for all modes of operation; (2) the licensee shall evaluate existing procedures to assure that such pro-cedures include all actions necessary for safety; and (3) the licensee shall take appropriate steps to assure that all plant personnel adhere to approved procedures and do not add unauthorized steps to any procedures.
The above conditions were confirmed in an Order served upon the licensee on June 2, 1979.
The facility was verified by the Resident Inspector to be in cold shutdown on June 3, 1979.
An Order authorizing startup was issued on June 14, 1979, after satisfactory review by the licensee of related management controls and IE's verification that acceptable licensee controls over these activities had been implemented.
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Victor Stelio, Jr.
Director Office of Inspection and Enforcement
Enclosures:
STS - Auxiliary Feedwater System cc: See next page h'6 RdI:I[b ROI":hf)
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\\(ateJ Io TIE /9 EDO 8/9/79 Surname FNolan SBryan Mo ey Guo' r DThompson Job H Date 8//v /79 8//v/7; 8//l//79 8/p 79 8/ /79 8/l$/79 8/ /79
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Chairman Hendrie Commissioner Gilinsky Commissioner Kennedy Commissioner Ahearne L. Bickwit, OGC
- A. Kenneke, OPE
'S..Chilk, SECY i
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Distribution:
IE File Central File IE Reading VStello, IE LVGossick, EDO GCGower, IE RGSmith, SD-TRehn, EDO TMI' group DThompson,-IE NCMoseley, IE e
-SEBryan, IE FJNolan, IE GErtter (ED0-6986)-
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_PL_* fit SYSTE!!3 AL'XILI ARY FEEDWATER SYSTEM LD'ITING CONDITION FOR OPEPATION 1
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3.7.1.2 At least three independent steam generator auxiliary feedwater pu.ps and associated flow paths shall be OPERABLE with:
h Two feedwater pumps, each capable of being powered from a.
separate emergency busses, and Il b.
One feedwater pump capable of being powered from an OPERABLE steam supply system.
)
APPLICAS:LITY:
MODES 1, 2 and 3.
ACTICN:
Uir. cnc auxiliary feeduster pu.p inoperable, restore at least three auxilia < feedwater cunps (two capable of being pcwered from separate emercer.cv busses and one cacable of being powered by an OPERABLE steam
'su:3iy sjsten) to OPEFABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in HOT SHUTDOWN wi.nin tre next 12 heurs.
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i I S'JF7E?L L ** CE REC'; IRE"ENTS F
l f4.7'.2 Each auxiliary feedwater pump shall be demonstrated OPERABLE:
I At leas. on:e per 31 days by:
a.
l.
l Verifying that each motor driven puno develops a dis-charge pressure of >
psig to a flow of g gpm.
2.
Verifying that the steam turbina driven pump develops a discharge pressure of >
psig at a ficw of >
when the secondary steam supply pressure is gre_ater than gpm 1:
psig.
t ij 3.
Verifying that each non-automatic valve in the flow path that is not locked, sealed, or otherwise secured in position, is in its correct position.
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a j!)LAi'T SYSTEMS I
AUXILIARY FEEDWATER SYSTEM SURVE!LLA"CE REOUIREMENTS (Continued)
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4.
Verifying that each automatic valve in the flow path is in the fully open position whenever the auxiliary feedwater system is placed in autorratic control or when above 10%
RATED THERMAL POWER.
b.
At least once per 18 months during shutdown by:
1.
Verifying that each automatic valve in the flow path j
actuates to its correct position on a test signal.
2.
Verifying that each motor driven pump starts automatically j
upon receipt of a test signal.
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E-SIS 3/47 6 March 15,1978 Mb b D g g gu l auuum!
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