ML20234D816

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Rev 0 to Resolution of Audit Findings Pertaining to Fire Pumps
ML20234D816
Person / Time
Site: Rancho Seco
Issue date: 12/04/1987
From:
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML20234D790 List:
References
ERPT-M-0067, ERPT-M-67, NUDOCS 8801070218
Download: ML20234D816 (23)
v • d • e


Text

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RESOLUTION OF AUDIT FINDINGS PERTAINING TO FIRE PUMPS l

l SACRAMENTO MUNICIPAL UTILITY DISTRICT ENGINEERING REPORT ERPT M-0067 e

REVISION 0 DECEMBER 4, 1987 l

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8801070218 871215 PDR ADOCK 05000312 DCD 0

t TABLE OF CONTENTS 1.0 Purpose page 1

2.0 Background

page 1 3.0 Summary of Report page 2 4.0 Conclusion page 3 List of Tables 2-1 Response to Problems Identified as page 4 Item 1.2.f of QA Audit 0-790 2-2 Response to Problems Identified as page 5 Item 3.B of NRC Report No. 50-312/87-15 l

2-3 Response to Problems identified During page 7 i

the NRC Audit Exit Meeting on 11/19/87 List of Attachments 1

Item 1.2.f of QA Audit 0-790 page 17 2

Item 3.B of NRC Report No. 50-312/87-15 page 18 3

Pump Curve for Fire Pump P-440 page 20 4

Pump Curve for Fire Pump P-996 page 21 i

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1.0 PURPOSE The purpose of this report is to close out item 1.2f of the Quality Assurance Audit No. 0-790 dated July 30, 1986 and respond to item 3.B of the NRC Report No. 50-312/87-15 dated July 1, 1987.

Furthermore, this report will address the concerns pertaining to the fire pumps, that the NRC expressed during the inspection exit meeting dated November 19, 1987.

1 2.0 BACKGROUNO l

Quality Assurance Audit No. 0-790 states that:

" Enclosure 6.1, Data Sheet for Motor Driven Fire Pump P-440 Monthly Surveillance Test of SP201.03B, reflects that, on three occasions, the discharge pressure exceeded I

the procedural criterion of 125 +/- 10 psig by 14 and 20 psi. The pump speed failed to meet the procedural criterion of 1750 RPM on eleven (11) occasions, ranging I

from 1700-1725 RPM."

Item No.1.2.f of the Quality Assurance Audit was restated as item 3.B in the NRC Report No. 50-312/87-15.

Furthermore, in the NRC Report i

No. 50-312/87-15 it was stated that, "it is unclear what corrective actions are proposed for the electric fire pumps unsatisfactory performance on 14 occasions."

The motor driven fire pump P-440 did produce a discharge pressure in excess of the procedural criterion on three occasions; however, pump j

P-44G did not fail to meet the pump speed criterion on eleven occasions as stated in the QA audit.

Fire pumo P-440 is rated at 1770 RPM and SP201.03B does not require that the speed of this pump to be l

verified.

In actuality, it was the diesel driven fire pump P-996 that I

failed to meet its required speed of 1750 RPM on eleven occasions.

j Additionally, the NRC report indicated that the motor driven fire pump P-440 performed unsatisfactorily on 14 occasions. However, as stated above, the motor driven fire pump P-440 only failed to meet its j

acceptance criteria on three occasions. The diesel driven fire pump P-995 failed to meet its acceptance criteria on the other eleven occasions.

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s 3.0

SUMMARY

OF THE REPORT Table 2-1 of this report lists the actual problems which were identified as item 1.2.f of the Quality Assurance Audit No. 0-790.

Table 2-1 also lists the responses to the cited problems.

Table 2-2 of this report lists the actual problems which were identified as item 3.B of the NRC Report No. 50-312/87-15. Table 2-2 also lists the responses to the cited problems.

Table 2-3 of this report lists the problems with the fire pumps which were identified during the NRC inspection exit meeting on November 19, 1987. Table 2-3 also lists the responses to the cited problems. to this report is a copy of item 1.2.f of the Quality Assurance Audit No. 0-790. to this report is a copy of item 3.B of the NRC Report No. 50-312/87-15. to this report is a comparison of the shop test versus the as-installed pump curves for P-440. to this report is a comparison of the shop test versus the as-installed pump curves for P-996.

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4.0 CONCLUSION

With the exception of two items, all cited problems identified under item 1.2.f of the Quality Assurance Audit 0-790 and item 3.B of the NRC report 50-312/87-15 have been resolved. The remaining items that must be resolved are the replacement of the air release valve on the motor driven fire pump P-440 and revision of the pressure relief valve setting for the motor driven fire pump. Corrective action for the air release valve is already identified in District internal report ERPT M-0049 and will be modified under ECN R-2095.

The issues raised by the NRC during the inspection exit meeting on November 19, 1987 have been addressed and the following corrective actions will have to be implemented in order to resolve the concerns associated with the performance of the fire pumps:

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Perform a new field acceptance test (STP) for both fire pumps to determine the baseline performance of each unit.

2.

Revise pump SPs to correspond to the performance criteria established by baseline test such that pump degradation trending can be monitored over time.

l 3.

identify and revise the pump performance commitment documents (Design Basis, USAR) to resolva the discrepancies identified by the inspector.

4.

Install a 1-1/2 inch air release valve on the motor driven fire pump.

5.

Evaluate the need for and install a circulating relief valve on the motor driven fire pump.

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6.

Reset the relief valve on the motor driven pump to a setting of 175 psig.

7.

A ScA. tion of the as-built system in the Turbine Buiidir.g will be performed to reconfirm the required flow and pressure needed at the fire pumps to deliver design densities of.20 gpm over 10,000 sq. ft. and.30 gpm over 3,000 sq. ft.

The cited problems in this report would not place the fire pumps in an LCO or inoperable condition.

Fire pumps P-440 and P-996 are therefore considered operable and capable of performing their intended functions which are to supply the most hydraulically demanding suppression system with the necessary flow at the required system pressure. !

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ATTACHMENT 1 Audit No. 0-790 Item 1.2.f of Page 8 QA Audit No. 0-790 l

" Writer's Guide" is approved. a complete rewrite cf all Surveillance Procecares in t'ccrdance with the guide ill cegin.

n tne interim, a Coordinated Commitment Log (CCL) entry has been rade for the *&C department to review SP.201.03A through N and P to l

ensure that gauges and equipment utilized are currently in the calibration program and calibrated.

The abcve CCL number is 860207 for completion by 4/24/86.

Current Status A review of this item was conducted cn 2/21/86 as a part of Audit 0-790, and the response of 1/24/86, GAC 86 47, reflects that a complete rewrite of all Surveillance Procedures ill commer.ce once AP.303A. Writer's Guide for Surveillance Procedures, has been

. issued.

A Coordinated Commitment Log (CCL) entry has beer mace for the I&C department to review SP201.03A through N und P to ersure that gauges and eculpment utilized are currently in the calib'atier prog am and calibrated.

This item snould te cicsed out ter -ne C.

~

number (86-0207) is completed.

'nli ::em I"cf : ;_sta i n ca :ne C Toi:c..c.'s:

E E ~. ~ ~ '.

A. 33. F ire ; c te c *. ion na t e r Sys em, Sec-ida 5.:.N :ta: E5 Ita,

" wh e n t n e c i e s e i c r i v e n p ump i s r.p n n i ng, a n i n s c t : : '. on s noc '. c be,

w f on tne fo:'c.ing:

(. t',

vJi Luce oil pressure 60 psig : 25 csi Water Jacket 4mriture 175'E : 15'F Pump Speeq 1750 RPM Discharge r.e.im e 62 5 : 10 psig

/

~b r.1, Data Sheet for Motor Driven Fire Pum; P 440 Mor.tr.iy

~

Surveillance Test of SP201.03B, reflects that. cn three occastors, the discharge pressure exceeded the procedural critericn of 125 10 psig by 14, 14 and 20 psi.

The pump speed failed to meet the procedural criterion of 1750 RPM on eleven (11) 'ccasions, ranging from 1700-1725 RPM.

This item is open.

Response

(RPO 85-554; June 7, 1985)

The current acceptance criterion of SP201.03B (Rev. 9) does not contain cressure or RPM criteria for the diesel driven fire pump.

A rev ision to SP201.038 will be made to confirm the proper operation of the ciesel fire pump, and will include pressure and temperature guidelines.

Tnis item has been added td the Coordinated Commitment Log under #850432.

Evaluation and Status:

i (i)

Ine first line of :ne seconc Laragra;n of :ne re;crt SScu t ce corrected as follo s:

En t ' c L4L67th! Da t a ine s : 'cr E ie se3-' van ~ ' e :.cc 0-?96.

ATTACHMENT 2 Item 3.B of NRC Re ort No. 50-312/87-15 l

B.

Fire Pumo Operability Pursuant to Technical Specifications and Governing Code Requirements By reply to section 9.9.3 and NRC question no.17, item 57 of the FSAR, the licensee is committed to design, install and maintain the I

fire pump installation for the f acility in accordance with the minimum requirements of NFPA standard no. 20 (1970).

According to the licensee's FSAR response to NRC question no.17, item 57, the l

largest sprinkler system flow demand on the facility's fire pumps is 2607 GPM over 10,000 ft2 at 87.6 PSI which can be met by either the electric or diesel fire pump.

Item No.1.2.f. of the licensee's fire protection annual Quality Assurance Audit No. 0-790 dated July 30, 1986, identifies specific deficiencies in the licensee's acceptance criterion contained in the surveillance procedures for fire pump operability.

For example:

(1) Completed Enclosures No. 6.1, " Data Sheet for Motor Driven Fire Pump P-440 monthly surveillance," of Test Procedure No. SP201.03B, indicate that on three occasions the disc harge pressure of the motor driven fire pump exceeded the acceptance criterion of 125 1 10 psig l

by 14, 14 and 20 psig.

Tne pump speed also failed to meet the acceptance criterion of 1750 rpm on elev e (11) occasions ranging from 1700 to 1725 rpm.

(2) Surveillance brocedure no. SP201.038 did not contain pressure, rpm or temperature acceptance criterion to confirm proper operation of the diesel fi e pump.

lO In addition, during plant tours of the.'acility, it was observed by the inspector and the licensee's staff that the controller for the.

I electric fire pump is not U.L. Listed fo_r this application as l

i required by NFPA 20 and because the controller is obsolete, the l

licensee has been unable to obtain repiccement parts in the event repairs are needed.

The air release valves associated with both l

fire pumps are undersized and pressura *elief valve setting for both pumps is below the shutoff head of the pumps.

The air release valve ensures proper venting of the pump casing.

These deficiencies are l

also identified in the licensee's Syste: Status Report.

l The licensee's proposed corrective action for several of these deficiencies consist of revising Surveillance Procedure SP201.03B to incorporate acceptance criteria which will verify proper operation of both fire pumps and to install a U.L. listed electric fire pump controller (stored onsite) in the event that the existing controller

~

'becomes inoperable.

The inspe'ctor determined that the licensee proposed corrective actior's would satisfactorily address the respective identified deficiencies.

However, it is unclear what corrective actions are proposed for the electric fire pumps unsatisfactory performance on 14 occasions; the problems of undersized air release valves; and pressure relief valve settings of both pumps below the shut off heads of the pumps which reduces the flow' capacity.

According to the licensee, these issues will be the subject of further discussions with appropriate levels of licensee management.

This is

c 7

~TE7707CGccr7 considered an open item (50-312/87-15-02) pending further licensee action and NRC review.

C.

Quality Assurance Audits Section 5.0 of the licensee's Fire Protection Program Manual describes the licensee's August 31, 1976 reply to NRC Branch Technical Position (BTP) 9.5-1 concerning quality assurance for fire protection at nuclear power plants.

The licensee elected to meet the NRC's fire protection quality assurance criteria by applying 10 CFR 50, Appendix B, to fire protection.

Included in this criteria are provisions for quality assurance audits to verify proper implementation of fire protection program requirements.

Technical Specification No. 6,5.2.8.i. and j. require that audits of the fire protection program be conducted annually and triennially.

At the exit interview, the inspector informed the licensee that the scope and content of annual and triennial audit no.87-009 appeared inadequate in that the audit depth was less than that described by NRC Generic Letter 82-21.

Subsequent to the exit meeting, the inspector's Region V in-office review of this audit found the audit to be satisfactory and fully meeting the guidance cf the generic letter.

Furthermore, the inspector's review of annual audit Hos.

0-871 and 0-790 also found those audits te be satisfactory.

No violations or deviations were identified.

D.

Organization and Staffina for Fire Protection Procram Implementation Section 2.0 of the licensee's Fire Protection Program Manual requires that the licensee's organization with administrative and functional responsibilities for fire protection be identified and that the authority of individuals delegated responsibility for implementation of the program be cesr,ribed.

According to the licensee, the current fire protection organizational chart contained in the FSAR is incorrect.

Under a new organizational scheme, the licensee is in the process of revising Administrative Procedure AP-23 to include a total of 5 l

operations and 3 engineering positions with direct responsibility l

for fire protection program implementation.

This revised approacn eliminates the f acility's reliance on contractor personnel for fire protection program implementation and places full responsibility for implementation of the program on permanently staf fed individuals.

However, all of the new permanent positions were not filled at the time of this inspection.

In response to the inspector's concern ov'er the apparent breakdown in the program's implementation, as indicated by the number of deficiencies identified in the licensee's System Review Program (see paragraph 4), and by the scope of problems documented in recent LER's and special reports, the licensee acknowledged that this breakdown did occur and stated that as part of toe resolution to this problem, permanent staffing needed to effectively implement the program and prevent f uture serious programmatic breakdowns would De

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