Text

Reactor Containment Bldg Ilrt,Beaver Valley Power Station, Unit 1,May 1993
	ML20056F750
Person / Time
Site:	Beaver Valley
Issue date:	08/10/1993
From:	Fenner S, Patterson J, Shildt G; DUQUESNE LIGHT CO.
To:	;
Shared Package
ML20056F749	List: ML20056F748; ML20056F750;
References
	NUDOCS 9308300343
	Download: ML20056F750 (64)
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                                                                                                -I RFACIOR 002EAI!MEIR BUIIDING                             i IIEEGMTED IEAKAGE RATE TEST                              !

l l i l i I DUQUESNE LIGE COMPANY BEAVER VAILEY POWER STATIGJ DJIT NO.1 !

J MAY 1993 l

Prepared By: ' (LM@ Date: ~T- 21 -9 3 k)S. Patterson System Engineer 5 i Reviewed By: w s $>Y/ - k5 Date: 7 -fC 15 G. L. Shildt Supervisor, System Engineering i i [ . Date: 7!20[N R. T. 36tuski I Director, System Engineering Yh w Date: Y/$W D. G. ItLain l Manager, Maintenmoe Engineering and Assessment Departnent Approved By: M977 de CC # Date: F//o/93 - S. C.' Fenner General Manager, Maintenance { Progrars Unit ) a 9308300343 930820 E PDR 5 ADOCK. 05000334 P PDR I . .

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I l I l TABLE OF 00NITIES ., l l l i _Section Title Pace TABLE OF COTEDES -l ii - i LIST OF ATTACHIE2ES iii ~ REFERDICES iv . 1 PURPOSE 1-1 2 SUEARY ' l 2.1 Ti'PE A IIRT 2.1-1 h 2.1.1. Test Summary 2.1-1 2.2 IDCAL LEAKAGE PATE TESTS (TIPES B & C) 2.2-1 3 DEEE;RATID LEAKAGE PATE TEST ! i 3.1 IDITED IDG OF EVDES 3.1-1 . 3.2 GDfERAL TEST DESCRIPTION 3.2-1 ! 3.2.1 Prerequisites 3.2-1 3.2.2 Hguipment and Instrumentation 3.2-1 ! 3.2.3 Data Acquisition 3.2-2 j 3.2.4 Data Resolution System 3.2-2 i i 3.3 TEST RESULTS 3,3-1 3.3.1 Presentation of Test Results 3.3-1 3.3.2 54.7 PSIA IIRT Results 3.3-2 . 3.3.2.1 IIRT Results - Mass Point Analysis 3.3-2 I 3.3.2.2 Supplemental Test Results 3.3-3 l 3.3.2.3 leakage Penalties Added to IIRT Irakage 3.3-4 l 3.3.2.4 As Found Containment Cordition - LIRT ; Improvements 3.3-6 ; 3.3.3 Conclusion 3.3-7 ; 4 IDCAL LEAKAGE RATE TESTS (TIPES B AND C) 4-1 l i j ii ; 5

_ _ _ _ . . m b '$ i LIST OF ATTACHMDES ATTACHMDE TITLE , 3.2A Instrumentation Idst 3.2B Instrunentation Selection Guide j 3.3A IIRT perhicM Input Variables 3.3B IIRT Absolute Test Method - Mass Point Analysis f Test Results , 3.3C Containment Air Mass vs. Time ! 3.3D Inakage Rate and UCL vs. Time, Mass J Point Analysis '

-)

3.3E Superinposed Isakage Verification Test Reduced -i Input Variables 3.3F Superimposed Isakage Verification 'Ibst, Absolute Test Method - Mass Point Analysis ! 4.1A Eighth Refueling Ircal Isakage Rate Test Data 4.1B Eighth Refueling Incal Isakage Rate Repairs 4.1C Ninth Refueling Incal leakage Rate Tbst Data ~ 4.1D Ninth Re. fueling Incal Isakage Rate Repairs 4.1E Eighth and Ninth Fuel Cycle Incal Inalage Rate Data i iii

                -                nl er

8 1 f i t etztyt2CES t 4

1. 10G R50, Apperdix J, Prinary Reactor Containment Irakage Testing E'or [

Water-Cooled Power Reactors, January 1, 1992. i

2. 1BVT 1.47.2, Containment Type A Isak Test, Beaver Valley Power Station Unit No. 1, Issue 2, Revision 4, March 16, 1993. ,

3. RISI N45.4, American National Standard, Irakage -

Rate Testing of Containment Structures for Nuclear Reactors, March 16, 1972.

4. ANSI /ANS-56.8, Containment System Leakage Testing Requirements, January 20, 1987.

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t I l 1 1 4 I i IV

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SDCTION 1 I PURPOSE ; l 1he purpose of this report is to present a description and analysis of the l May 1993 Type A Containment Integrated Icakage Rate Test (IIRT), and a ; su:rary of Type B and C local leakage Rate Tests (LIRT's) performed since the last periodic IIRT (Drmbr 1989) at Ducraesne Light Company's Beaver [ Valley Pcuer Station Unit No.1 (BVPS 1) . Stone & Webster Engineering Corporation (SWir) provided test engineering { consultation services to Duquesne Light Company durirg the perforrance of the 1993 IIRT. 3his report is submitted as required by 10CFR50, Apperdix J, Paragraph V.B. l i s ' I i , .i !

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1 1 5 4 1-1 i

m . . . t . .. { J l I SECTION 2 P

SUMMARY

2.1 TYPE A IIRT i l 2.1.1 Test Summary j i Upon completion of all IIRT prerequisites and initial conditions, containment [ pressurization started at 1521 hours on May 25, 1993 at a fairly constant , pressurization rate of 3.0 psi per hour. The compressors were secured at ~ 0603 hours on May 26, 1993 with a W instantaneous pressure of 57.5134 PSIA. At 1020 hours on May 26, 1993, the tenperature stabilization criteria (< 0.5 'R : over last two hours) was satisfied. The IIRT start time was declared to be 1030 hours on May 26, 1993. Initial mass trends indicated an acceptable leakage rate of approximately 9.5 lbm/hr. Penetration area leahge ( investigations identified no significant leakage. { The IIRT was completed at 1030 hours on May 27, 1993 with a Mass Point Upper ' Confidence Invel of 0.02506 %/ day. This leakage rate is below the 0.75 La ! Acceptance Criteria of 0.075 %/ day. ! The Superimposed Irakage Verification Test was started at 1230 hours on ' May 27, 1993 when the stability of all containnent parameter trends had i recovered from the irposed leakage rate perturbation. At the end of the four hour test period, the Mass Point Analysis leakage Rate was just outside the ! i 0.25 Ia limit. The verification test was extended for an additional three '! hours; however, the measured leakage rate continued to remain outside the 1 0.25 la limit. The Actual Containment Irakage Rate was assumed to have been initially over influenced by temperature stabilization; therefore, the IIRT was restarted at ' 1945 hours on May 27, 1993 due to the improved stability of containment i conditions. The IIRT was completed at 1945 hours on May 28, 1993 with a Mass Point Upper Confidence Invel of 0.01331 %/ day. (See Section 3.3, Test Results). This leakage rate is below the 0.75 Ia Acceptance Criteria of - 0.075 %/ day. The Superimposed Irakage Verification Test was started at 2045 hours on May 28, 1993 sten the stability of all the containment parameter trends had ' recovered from the imposed leakage rate perturbation. The Superimposed Inakage ! Verification Test was successfully completed at 0045 hours on May 29, 1993 (See , Section 3.3, Test Results) . i After review of all IIRT test data, containnent depressurization started at i 0135 hours and was conpletcxl at 0900 hours on May 29, 1993. I l 2.1-1 \ 1 l l

2.2 IDCAL LEAKAGE RATE TESTS (TYPES B NO C)

   'Ihe I.ocal Leakage Rate Tests (IlRT's) of the containnent isolation valves and other containnent penetrations were conducted as described in the Beaver Valley Power Station Unit No.1 surveillance test procedures for Type B and C tests.

In accordance with Appendix J to 10CFR50, Paragraph V.B, data for the Incal Irakage Rate Tests are surrarized in Section 4 of this report. l 2.2-1

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l 1 l SECTION 3 l i IITTEGRATED LEAKAGE RATE TEST l 1 3.1 EDITED IIG OF EVDTPS I i

                 'Ihis log was alited from inforration contained in the IIRP Test Irg.                                          !

a May 25, 1993 1510 Prerequisites and Initial Conditions for IIRT completed. l i 1521 Comnenced IIRT pressurization. f l 1742 Contaiment pressure at approxirately 19.5 psia. Completed walkdown of l all penetration areas. Noted slight increase on pressure gauge installed at penetration No. 90, Containment Purge Exhaust. t 1 2003 High Invel Seal Water Accumulator Alarm, for Outside Recirculation ! 3 Spray Pump [1RS-D-2B] cleared. l

2020 Increased back pressure on Air Dryer to 98.0 psig to reduce moisture i content of pressurization air. ! - t a t 4 Fay 26,1993 l 0025 Blew down after cooler and left drain valve throttled cpen further to reduce moisture a:)ntent of pressurization air. ,j

0430 Containment pressure at approxirately 53.0 psia. I 0603 Secured containmnt pressurization with a peak instantanecus pressure i j of 57.51 psia. .

0615 Comenced IIRT stabilization period. ' i l 10v5 Completed walkdown of all penetration areas. Noted pressure increase ! , on pressure gauges installed at penetrations No. 90 and 91, Containment l , Purge Supply and Exhaust. 1020 Satisfied temperature stabilization criteria (<0.5 *R over last two -! hours). i 1030 Declared start of IIRT. I , 1353 Mass trend is acceptable at approxirately 9.5 lbn/hr. Mass point upper , confidence level of 0.097 percent / day. j i 3.1-1 ; I

1555 Completed walkdown of all penetration areas. No significant leakage ; noted. Penetrations No. 90 and 91 have pressurized to 42.7 and 36.8 psig respectively. ' 1750 Mass trerd is acceptable at approximately 7.5 lhn/hr. Mass Point Upper Confidence level of 0.052 percent / day. Ltav 27, 1993 i 0145 Mass Point Upper Confidence level of 0.033 percent / day. i 0842 Preparing for Superinposed Isakage Verifimtion Test. Mass Point Upper Confidence Invel of 0.026 percent / day. ; i 1030 Completed IIRT with a Mass Point Upper Confidence IcVel of 0.025 f percent / day. i 1130 Established a 4.56 SCP/M leakage f1w ' for the Superiwd Isakage , Verification Test. 1230 Commenced the Superirposed Isakage Verification Test. ' 1630 Superimposed Irakage Verification Test just outside of acceptable ' limits, will continue to record data. . 1941 Superi w M Irakage Verification Test still outside of acceptable limits. Decision made to terminate test. Suspect actual containment leak rate is much less than neasured and was over influenced by the i temperature stabilization of the contairnent buildirg. , , 1942 Superinposed leak isolated. ; 1945 Restarted the IIRT. May 28, 1993 1 0613 Containnent Irak Rate is trending towards the value measured during the 4 last 12 hours of the initial IIRI. Containnent Mass Point leak Rate is 0.012 percent / day with a Mass Point Upper Confidence Invel of 0.022 , percent / day. 1609 Containment Mass Point Isak Rate is 0.013 percent / day with a Mass Point , Upper Confidence Level of 0.016 percent / day. 1945 Campleted IIRT with a Mass Point Upper Confidence Level of 0.013 percent / day. - 1950 Established a 4.54 SCF/M leakage flw for the Superinposed Icakage Verification Test. ; 2045 Cammenced the Superinposed Isakage Verification Test. 3.1-2

i J May 29, 1993 ; 0045 Coqpleted Superi W Isakage Verification Test. i 0135 Cumm.:rsx4 contairment depressurization. ! 0900 Completed contairraent depressurization. i

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i t l 3.1-3 l

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3.2 GDIERAL TEST DE.SCiumON { 3.2.1 Prerequisites i i In accordance with Beaver Valley Pcuer Station Unit 1 IIRT Test Procedure ! 1BVT 1.47.2, the follcwirry is a listing of the pertinent prerequisites- I cmpleted and docunented prior to containmnt pw.ization: [ . a. All Type B and C local leakage Rate Testing completed. ! I

b. All test instrunentation calibrated or functionally verified within I 6 months of IIRT. l 4 !

c. All penetration valve alignnents completed. !

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d. All IIRT computer software used for data acquisition, and data ,

analysis, tested ard operational. l

e. Tenporary air cmpressors and auxiliary equipent checked out and !
available for pressurization. !

i

f. All equipnent that could be damaged by test pressure, removed or l Protected.

g. Portable pressure containing equipt removed from containment. l t

h. Depressurized ard vented pressure vessels located inside containmnt. I 1

J ! 1. Completed structural integrity inspection of containnent. I 3.2.2 Bqui p t and Instrumentation l i Pressurization of the containnent was achieved by the utilization of a i tenporary system consisting of six diesel driven oil free air umgessors, a ! water cooled aftercooler, and a refrigerant air dryer. 'Ihe system included adequate instrumentation and valving to maintain p w monitoring and control of the compressed air quality throughcut the pressurization sequence. 'Ihe

total capacity of the pressurization systen was 9000 SCFM. Air was supplied to !

containnent through the Containnent Purtje System. !

The various containnent parameters required to calculate containment leakage j were monitored using instrumentation which consisted of 16 resistance i temperature detectors, 5 dewpoint detectors, and an absolute pressure quartz ! ranoneter. Pertinent data for the test instrumentation is listed in i Attachnent 3.2A. ) t t A test panel consisting of a rotameter, pressure gauge, and a thermoneter vas ' used to perform the Superimposed leakage Verification 'Ibst. l i e i 3.2-1

a l

'I

3.2.3 Data Acquisition System he data acquisition system used for IIRT was a conputer controlled logging system which provided instantaneous raw sensor data. l For the IIRP, the Data Acquisition System monitored the follcuiry instrumentation: t i Type No. of Sen' ors l t Temperature Detectors 16 l Dewpoint Sensors 5 . Quartz Manameter 1 ! a i Instantaneous readirgs for each sensor were collected and printed at 15 minute ' intervals. Input to the data analysis program was based on these collections. i Each data set was time stanped. 3.2.4 Data Resolution System

     'Ihe recorded data was inputted to Stone & Webster Ergineering Corporation's            !

computer program for data reduction and leakage rate calculations. 'Ihe Mass ! j Point Analysis Method was used to deternine the containment leakage rate. . I Absolute Method of Mass Point Analysis

2e Absolute Method of Mass Point Analysis consists of calculating the air mass -

within the containnent structure, over the test period, using pressure, .r temperature, ard dewpoint data obtained during the IIRP. S e air mass is j computed using the ideal gas law as follows: 144V(P-Pv) M-

RP 4

Where: i M = air rass, lira . P = total pressure, psia PV = average vapor pressure, psia l R = 53.35 ft-11ra/ltn "R (for air) l T = average containnent tenper0ture, *R V = containnent free vnkm 1,750,000 cu. It. , 'Ibe leakage rate is then determined by plotting air rass as a function of time, using a least w es fit to determine the slope, A = dM/dr. S e leakage rate is expressed as a percentage of the air rass lost in 24 hours or symbolically: l I.eakage Rate = A/B(-2400) 3.2-2 I i l i l i

1 Where -A is the slope of the least w es curve and B is the y-intercept. The sign convention is such that the leakage out of containnent is positive, and , the units are in percent / day. I 1he air rass is calculated and the result is correlated as a function of time by means of a least-squares curve fit of the form + M = At + B l r A confidence interval is calculated using a Student's T distribution. The sum I of the leakage rate and confidence is the Upper Confidence Invel. l

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l 1 , r i ! i. l 1 i i l 1 i o i i i l i i e 3.2-3

j i ATIAOMITT 3.2A t l msmuemrim tasr e i Weight ! Instrunent Factor Rarce 7&Oe Elevation A. Temr;erature i TRB-11M100-01 0.039104 60-100 F A 739' i "RB-11M100-02 0.043137 60-100 *F B 739' TRB-IIM100-03 0.038487 60-100 *F A 739' i TRB-11M100-04 0.041176 60-100 *F B 744' TRB-11M100-05 0.076695 60-100 *F C 799' TRB-11M100-06 0.076246 60-100 *F C 799'

           'IRB-11M100-07 0.076695     60-100           *F   C       799'                       l TRB-11M100-08  0.000000     60-100           *F           799'                       l TRB-1IM100-09  0.090756     60-100           *F   D       850'                       !
           'IRB-11M100-10 0.090756     60-100           *F -D        850'                       !

TRB-11M100-11 0.090756 60-100 *F D 850' !

          . TRB-11M100-12 0.038207     60-100           *F   F       799'                       ;

TRB-11M100-13 0.094846 60-100 *F E 797' l TRB-1IM100-14 0.000000 60-100 *F 7998 6" i TRB-11M100-15 0.000000 60-100 *F 730' l TRB-11M100-16 0.000000 60-100 *F 701' 6" ! TRB-11M100-17 0.051746 60-100 *F G 701' 6" i TRB-11M100-18 0.055108 60-100 *F .G 701' 6" } TRB-11M100-19 0.045490 60-100 "F F 740' 10" l TRB-11M100-20 0.050794 60-100 *F G 701' 6" { i I l l l Page 1 of 2 i

j i ATIAONDTP 3.2A (continued) , 1 INSIRIEDfIATIG1 LIST ' Weight ! Instrument Factor Range Zone Elevation l B. DesToint 1%-1LM100-01 0.125690 0-100 *F J 825' , 1R-11M100-02 0.125690 0-100 *F J 825' l 1%-11M100-03 0.249540 0-100 *F K 701' l IR-1IM100-04 0.249540 0-100 *F K 701' 1%-11R100-05 0.249540 0-100 *F K 701' , C. Pressure l I-I-2.3299 1.000000 0-100 PSIA l

                 # I-II-2.1399-B           0.000000     0-100 PSIA                                       !

j -i i s D. Superimposcd IEakage Verification Test F]cw Inh l ! I-A-1.553 (FI-Sle2) 1.000000 0-8 SCFM I-A-1.553 (FI-Slel) 0.000000 0-8 SCH4 t . i l i j- i s i l 2 j t 9 y # Backup quartz ranameter, logged locally at same frequency as prirary ranameter. ; c 1 I t Page 2 of 2 { r I l-

l ATIA0MDE 3.2B f ( i j INSIRUMDCATION SELELTION GUIDE !

             'Ihe Instrunentation Selection Guide (ISG) formula is used to determine the                         i ability of an instrunentation system to neasure the integrated leakage of the reactor containnent system.                         Instrunentation errors are combined usirg a     '

root-sum-square fort.nla. The ISG is not added to the value of the calculated

leakage rate, but is used for instrument selection and loss of sensor criteria

! only. Measurenent system sensitivity values are used in the ISG formula since ; q it is the change in the containnent air rass, not the absolute value in mass, ! that is used to computer leakage. 'Ibe following is the information used to ! calculate the ISG. I s i l Quartz Dewcell 100 OHM Mananeter Hyttroneter Platinum RID Sensor Manufacturer D.H. Instruments Foxboro Electric 'Iherco-neters Number of Sensors (n) 1 5 16 f i Parameter Measured Total Pressure, Dew Point, Ibmperature f PSIA (p) *F (pv) *R (T) l 9 i

Absolute Value 54.7 PSIA 60 *F 530 *R l t

P l , I 1 1 l l 1 : I l i a . I. t 4 l i i f Page 1 of 3 4 r i

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l 3 l ATIAQiMDTP 3.2B (continued) a i INSIRUMDTIATIQ1 SELIX.TIQi GUIDE ! IDTE: Frcra the Steam Tables, at a dew point ta perature of 60 *F the equivalent water vapor pressure charge is 0.0092 PSIA /*F. Sensor Sensitivity (E), and Repeatability ard Resolution (C) for the e Hygreneter's were converted to PSIA prior to calculatirg the total i system error (e). t Quartz Dewcell Platinum I Manoneter mm u#wr RID i Sensor Sensitivity (E) 0.001 0.5 0.03 Repeatability ard j Resolution of System ' Excluding Sensor (C) 0 0.1 0.03 I

     'Ibtal System Error (e)             0.001

0.002 0.011 ;

e = [(E2 + C2 )/n)1/2 f i I'

              'Ihe folleviJg equation was used to calculate the ISG:

1/2 ,

                                                  -2          -
                                                                     -2     -
                                                                                 -2                 !

i ISG = 2400 8 eov t 2 0 p

                                                        + 2             + 2   3                     :

p T l I t f I where: t = test duration, Hours "p = system error for pressure, PSIA

                          = system error for despoint, PSIA                                          >
                          = system error for tenperature, *R t

i i

              'Ihis numtxr was converted to equivalent water vapor pressure.                         '

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t

ATTACHMDir 3.2B {cxmtinued) : INSIRUKD7TATIQi SELECTION GUIDE j i t I i

            'Ihe ISG (24 Hrs) was calculated as follcus,                                                                                     i i
                                                                                                                                             ?
                                                         -2                 -
                                                                                        -2            -
                                                                                                                     -2 n l/2                 ;

i 2400 0.001 0.002 0.011 ! Im = 2 +2 +2 I 24 54.7 54.7 530 l J I 1/2 , 2400 ! ISG = 6.68E-10 + 2.67E-9 + 8.62E-10 '! l 24 - - I e I f

ISG = 0.00648 Pct / Day (Maxirum allcuable ISG = 0.025 Pct / Day) l i i Tire (t) at the maxinn ISG was calculated as follcus: r

                                                                                                                                            -1 1/2                              ;

2400 ' t= 6.68E-10 + 2.67E-9 + 8.62E-10 0.025 - -J t= 6.22 Hcurs I Page 3 of 3 ; I

1 3.3 TEST RESULTS 4 3.3.1 Presentation of Test Results The test data for the May 1993 IIRT is based on an 24 hour test period starting at 1945 hours on May 27, 1993. W e final test results were determined using Stone & Webster Dgineering Cbrporation's IIRT computer program. 'Ihe P*W Input Data, Mass Point Analysis Test Results, Superirposed Isakage Verification Test Results, ar.d representative graphs are contained in Attachments 3.3A through 3.3F. i' 'Ibe Mass Point Analysis Test Results for the IIRT satisfied the procedural accep' m criteria. The IIRT instrumentation was verified by the Superived Inakage Verification

Test Method. 'Ihe Mass Point Analysis Test Results for the Superiqxsed Leakage Verification 'Ibst satisfied the procedural acmptance criteria.

4 k a l 3.3-1

t i l 3.3.2 54.7 PSIA IIRT Results

        'Ibe IIRT was corducted in accordance with Beaver Valley Power Station Unit                                  !

No. I test procedure 1BVI 1.47.2. 'Ihe results for the IIRT ard for the l Supplemental Test are shown below; i 1 i 3.3.2.1 IIRT Results - Mass Point Analysis ; Item (Percent / Day) t

.r

1. Iam, Irakage Rate Calculated 0.011066 I

2. Jonfidence Level 0.002247 i

3. UCL, Iam Irakage Rate plus Confidence 0.013313 ,

Level

4. Corrections for. I (See Section 3.3.2.3) '; i. Type B Penalties 0.000362 i
ii. Type C Penalties 0.001282 l iii. Water Invels 0.000000 !

f iv. Total Corrections 0.001644 {

5. Total Reported IIRT Isakage Rate 0.014957 j (Items 3 & 4) ;

Results were within the acceptable limits of < 0.75 la or < 0.075 Pen:ent/ Day j

,I

1 3.3-2

   , .+      .w~      -,     n,+ - - - . . , - - ,

I 3.3.2.2 Supplement Test Results l l The Supplemental Verification Test was performed using the Superimposai Isakage : Verification Test Method in accordance with test procedure 1BVr 1.47.2. The l results for the Superimposed leakage Verification Test are shcun belcu. l 4 l i

1. The Superinposed leakage Verification Test is acceptable provided Ic '

falls within the follcuing rarge: ; l (Lam + Io - 0.251a) s Ic 5 (Lam + Io + 0.25Ia) ' Where: Lam = Type A calculated leakage (camputer)

                                       = 0.011066 Percent / Day                                                  '

lo = Superirposed leakage rate developed from rotameter l

                                       = 0.099824 Percent / Day 1

Ic = Camposite leakage (canputer) , 4 a = 0.118578 i i

a. Mass Point j j (0.011066 + 0.099824 -- 0.025) 5 0.118578 s {0.011066 + 0.099824 + 0.025) !

4 (0.08589) $ 0.118578 s (0.13589) l

The Superimposed Icakage Verification Test was within the allcuable limits. i t

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J ; l a 1 3.3-3 i:

3.3.2.3 leakage Penalties Added to IIRT Inakage , Penetration leakage to be addni since these penetrations were isolated or cculd > not be vented ard drained during the IIRT. 7he leakage assigned is the i recorded value for minirum pathway leakage.

i. Type B Penalties Description leakace (SCF/D) l Electrical Canisters 12.40 f Penetrations O-Rings 11.30 I t

Total Type B Irakage = 23.70 SCF/D 7btal Type B leakage = 0.000362 Percent / Day ii. Type C Penalties Description Irakace (SCP/D) . i Pent #1 Component Cooling Water System 0.47 , Pent #2 Component Cooling Water Systen 1.64 Pent #4 Cunponent Cooling Water System 0.47 1 Pent #5 Camponent Cooling Water System 0.47 l l Pent #8 Component Cooling Water System 0.47 ! Pent #9 Component Cooling Water System 0.47 ! l Pent #11 milled Water System 0.47 + , Pent #13 Fire Protection System 0.47 i Pent #14 m illed Water System 0.47 l Pent #16 Component Cooling Water System 0.47 Pent #17 Component Cooling Water System 0.47 . Pent #18 Camponent Cooling Water System 28.49 .{ Pent #24 RHR System to RdST 14.52 ! Pent #25 Component Cooling Water System 26.64 Pent #26 Component Cooling Water System 0.94 , Pent #27 Conponent Cooling Water System 0.57 ' Pent #28 RCS letdcun 0.47 i Pent #31 Fire Protection System 0.70 i Pent #32 Fire Protection System 0.47 i' Pent #55-2 Leakage Monitoring System 0.47 Pent #58 Conponent Cooling. System 3.42 i Pent #97-1 Reactor Plant Sanple System 0.47 : Pent #110-1 Pressurizer Dead Weight Tester 0.47 l I Total Type C leakage = 83.97 SCP/D { Total Type C Icakage = 0.001282 Percent / Day 1 4 3.3-4

                                                  ~ - .             .                 .. -            _    ..

t 4 . ; 6 iii. Water level Corrections Description leakage (SCP/D) ,

                                                                                                              -1 Rx Vessel                              0.0             l cn=t se p                              0.0 I

Total Water level Corrections = 0.0 SCP/D Total Water level Corrections = 0.0 Percent / Day I b i I h n f

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                                                                                                                ?
.                                                                                                               a b

= t . 'I t

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1 I t i 3.3-5 j t i I r a ?

3.3.2.4 As Fcund Containment Condition - IlRT Improvements l In order to account for the affect of Incal Irakage Rate 7bst (IlRT) repairs I (made prior to the IIRI) on the "as found" condition of containment, an ! analysis of IlRT results was performed. i The "as found" minimum pathway leakage rate is reviewed against the "as left"

minimum pathway leakage rate for each IIRT penetration. If the penetration !

minimum pathway leakage rate is reduced because of repairs, maintenance, design changes, etc., then the leakage rate improvement is noted. The total of all , these leakage rate improvements is the adjustment to the "as found" containment ! condition. The minimum pathway leakage rate for the follcuing IlRT penetrations was [ reduced as a result of repairs: ' i AS IUlID MINIMUM AS 1 EFT MINIMG4 IEJEAGE PA'IW4AY IIAKAGE PA'IEWAY LEAKAGE DIFFERDICE ; PDTP UO. (SCP/D) (SCF/D) (SCF/D) ! 8 0.57 0.47 0.10 ! 17 0.94 0.47 0.47 ! 24 15.50 14.52 0.98

26 8.51 0.94 7.57 [

38 44.70 0.47 44.23 ; 42 52.48 6.55 45.93 l 47 25.80 2.35 23.45 ; 56.3 0.66 0.47 0.19 i 64 20.76 0.47 20.29 . 89 11.81 5.65 6.16 _j I l Total Minimum Pathway Isakage Rate Improvement = 149.37 SCF/D i l 1 Total Minimum Pathway leakage Rate Irprcreement = 0.002281 Percent / Day ; i i [ Addirg this "as found" containnent adjustment to the reported IIRT results : l yields the followirg results: j Item (Percent /Dav) . 1. Total Reported IIRT Irakage Rate 0.014957 l (See Section 3.3.2.1) : i ,

2. As Found Containnent Adjustnent 0.002281 j

3. Total Containnent Irakage Rate 0.017238 3.3-6

,       3.3.3         Conclusion 4

No significant leakage paths were identified during the IIRT. The reasured contairrent leakage rate appears to have been over influenced initially by ) tenperature stabilization durirq the first half of the leakage rate reasurenent l period. This caused the final IIRT reasured leakage rate to be artificially i higher than the actual leakage rate, but still acceptable. The Superirposed i leakage Verification Test hcwever was impacted by the improved tenperature stabilization. During the Superimposed Icakage Verification Test a leak of ap 3roxirately la j (0.1 %/ Day) is imposed onto containment. Icakage rate measurements are i l restarted after allowing approximately one hour for stabiliz. tion. The 4 resulting measured leakage rate (composite leakage rate) must equal the final '

reasured IIRT leakage rate plus the imposed leakage rate within a rargin of 0.025 %/ Day to be acceptab'e. ,

I Since the final IIRT measured leakage rate used for the verification test was ! actually greater than the actual containment leakage rate, the resulting l 1 ccrposite leakage rate was biased. Subsequent data analysis during the ! verification test yielded a composite leakage rate which reflected the actual ; containment leakage rate which was not biased. The resulting composite leakage . ] rate rerain just belcu the lower verification test acceptance limit. The second IIRT run was started since the actual containment leakage rate was i assumed to have been initially over influenced by temperature stabilization ' during the first IIRT run. During the second IIRT run the measured leakage ; rate trended to a value of about half of that measured during the first IIRT ! run. The IIRT was acrpleted with an acceptable leakage rate. - The Superirposed Leakage Verification IMt performed after the second IIRT run : was within acceptable limits. j Consideration for future IIRT's will be given to possible tightening the ! , terperature stabilization guideline criteria from the present < 0.5 *R over " last 2 hours to a more stringent criteria. Data scatter of the two dewcels located in the containnent dcre significantly influenced the Total Tire Upper Confidence Level raPdng a short duration test performed in accordance with Bechtel 7bpical report BN-70P-1 irpassible to ; i conduct. Installation of draft eliminators ard shielding of the instrunent t j cables will bn evaluated for these two dewcels to possibly eliminate the data scatter during future IIRT's. ' 4 3 { i J l 1 3.3-7 i

                                                                                                           )
  ,           _ _ . _                                                _      . _ , _ _ _ _ _ . -_ _ _ ,  _- i

ATTA0iMD7f 3.3A D7TEERATID IEAKAGE PATE TEST FROM 1945 HOURS Qi 5/27/93 TO 1945 HOURS Gi 5/28/93 i RIDUCID dip (Jr VARIARTFR Time Press. V.P. Temp. Dewpoint Mass (hh:mm) (PSIA) (PSI) (R) (F) (LbH) 19:45 57.009 0.3864 536.067 71.846 501780.93 , 20:15 57.010 0.3829 536.080 71.579 501801.74 20:30 57.011 0.3840 536.078 71.660 501807.71 20:45 57.009 0.3848 536.079 71.724 501778.66 21:00 57.007 0.3834 536.083 Y1.611 501768.93 21:15 57.010 0.3812 536.084 71.446 501819.71 21:30 57.010 0.3788 536.087 71.258 501832.06 E 21:45 57.011 0.3801 536.081 71.360 501834.58 22:00 57.010 0.3852 536.087 71.750 501775.19 22:15 57.010 0.3828 536.099 71.566 501787.04 22:30 57.010 0.3831 536.096 71.590 501784.93 22:45 57.008 0.3822 536.099 71.523 501777.51 23:00 57.007 0.3817 536.095 71.481 501772.63 23:15 57.009 0.3822 536.104 71.520 501784.55 23:30 57.010 0.3794 536.103 71.304 501815.30 23:45 57.010 0.3778 536.116 71.183 501811.83 00:00 57.010 0.3800 536.112 71.348 501802.49 00:15 57.010 0.3807 536.117 71.405 501786.26 00:30 57.011 0.3809 536.130 71.424 501785.13 00:45 57.010 0.3808 536.128 71.416 501777.59 01:00 57.012 0.3827 536.129 71.557 501776.23 01:15 57.012 0.3793 536.133 71.300 501808.74 01:30 57.011 0.3802 536.137 71.368 501784.76 01:45 57.009 0.3820 536.143 71.507 501747.55 02:00 57.012 0.3778 536.145 71.184 501810.12 02:15 57.013 0.3800 536.147 71.349 501795.06 02:30 57.012 0.3829 536.160 71.575 501750.50 02:45 57.013 0.3806 536.157 711395 501780.88 , 03:00 57.013 0.3781 536.164 71.205 501795.62 03:15 57.013 0.3786 536.166 71.244 501793.23 03:30 57.012 0.3789 536.175 71.267 501772.49 i 03:45 57.015 0.3 779 536.175 71.190 501802.56 04:00 57.015 0.3803 536.184 71.378 501775.13 04:15 57.014 0.3796 536.185 71.319 501771.69 04:30 57.014 0.3833 536.178 71.609 501746.01 04:45 57.015 0.3779 535.191 71.185 501792.45 05:00 57.016 0.3800 536.192 71.353 501778.15 05:15 57.015 0.3778 536.201 71.179 501783.19 05:30 57.016 0.3802 536.209 71.367 501761.84 05:45 57.016 0.3771 536.211 71.122 501785.01 06:00 57.016 0.3804 536.208 71.385 501761.22 06:15 57. 0.3785 536.224 71.236 501758.98 06:30 57.018 0.3776 536.215- 71.165 501796,13 06:45 57.018 0.3T87 536.219 71.252 501782.28 07:00 57.017 0.3315 536.226 71.471 501742.78 07:15 57.015 0.3789 536.228 71.266 501748.48 07:30 57.018 0.3774 536.235 71.150 501781.92 07:45 57.019 0.3768 536.237 71.103 501788.96 Page 1 of 2 l

l l ATTAGEENT 3.3A I INTIERATED IERGGE RATE TEST FRCH 1945 HOURS ON 5/27/93 'IO 1945 HOURS ON 5/28/93 REDUCED INPUT VARIARTJM (continued) Tine Press. V.P. Temp. Dewpoint Mass (hh:mm) (PSIA) (PSI) (R) (F) (LbM) 19:45 57.009 0.3864 536.067 71.846 501780.93 20:15 $7.010 0.3829 536.080 71.579 501801.74 I 20:30 57.011 0.3840 536.078 71.660 501807.71 l 20:45 57.009 0.3848 536.079 71.724 501778.66 21:00 57.007 0.3834 536.083 71.611 501768.93 + 21:15 57.010 0.3812 536.084 71.446 501819.71 21:30 57.010 0.3788 536.087 71.258 501832.06 21:45 57.011 0.3801 536.081 71.360 501834.58 22:00 57.010 0.3852 536.087 71.750 501775.19 22:15 57.010 0.3828 536.099 71.566 501787.04 22:30 57.010 0.3831 536.096 71.590 501784.93 22:45 57.008 0.3822 536.099 71.523 501777.51 23:00 57.007 0.3817 536.095 71.481 501772.63 l 23:15 57.009 0.3822 536.1Q4 71.520 501784.55 23:30 57.010 0.3794 536.103 71.304 501815.30 232'5 57.010 0.3778 536.116 71.183 501811.83 00:00 37.010 0,3800 536.112 71.348 501802.49 00:15 57.010 0.3807 536.117 71.405 501786.26 00:30 57.011 0.3809 236.130 71.424 501785.13 00:45 57.010 0.3808 536.128 71.416 501777.59 01:00 57.012 0.3827 536.129 71.557 501776.23 01:15 57.012 0.3793 536.133 71.300 501808.74 01:30 57.011 0.3802 536.137 71.368 501784.76 01:45 57.009 0.3820 536.143 71.507 501747.55 02:00 57.012 0.3778 536.145 71.184 501810.12 02:15 57.013 0.3800 536.147 71.349 501795.06 02:30 57.012 0.3829 536.160 71.575 501750.50 02:45 57.013 0.3806 536.157 71.395 501780.88 03:00 57.013 0.3781 536.164 71.205 501795.62 03:15 57.013 0.3786 536.166 71.244 501793.23 03:30 57.012 0.3789 536.175 71.267 501772.49 03:45 57.015 0.3779 536.175 71.190 501802.56 I 04:00 57.015 0.3803 536.184 71.378 501775.13 l 04:15 57.014 0.3796 536.185 71.319 501771.69 04:30 57.014 0.3833 536.178 71.609 501746.01 , 04:45 57.015 0.3779 536.191 71.185 501792.45 05:00 57.016 0.3800 536.192 71.353 501778.15 05:15 57.015 0.3778 536.201 71.179 501783.19 1 05:30 57.016 0.3802 536.209 71.367 501761.84 ' 05:45 57.016 0.3 771 536.211 71.122 501785.01 06:00 57.016 0.3804 536.208 71.385 501761.22 06:15 57.016 0.3785 536.224 71.236 501758.98 06:30 57.018 0.3776 536.215 71.165 501796.13 06:45 57.018 0.3787 536.219 71.252 501782.28 07:00 57.017 0.3815 536.226 71.471 501742.78 07:15 57.015 0.3789 536.228 71.266 501748.48 07:30 57.018 0.3774 536.235 71.150 501781.92 07:45 57.019 0.3768 536.237 71.103 501788.96 Page 2 of 2

j ATIACHMDC 3.3B I DEEGRATED IDEE RATE TEST FBCH 1945 IDURS ON 5/27/93 'IO 1945 HOURS ON 5/28/93 i ABSOIUTE TEST ME'UDD, MASS PODE NULYSIS TEST MEDDD Time Mass Leakage Confidence UCL (hh :fTn) (Lb4) (PCT./0AY) (PCT./ DAY) (PCT./ DAY)

                                ..........     ..........     .......... r 19:45      501780.93         0.000000      0.000000       0.000000 20:15      501501.74         0.000000      0.000000       0.000000   '

20:30 501807.71 -0.174833 0.179510 0.004677 20:45 501778.66 -0.023883 0.337232 0.313348 21:00 501768.93 0.052227 0.210209 0.262436 21:15 501819.71 -0.037095 0.181533 0.144438 21:30 501832.06 -0.092309 0.144150 0.051841 21:45 501834.58 -0.114639 0.109467 -0.005172 22:00 501775.19 -0.051201 0.111721 0.060520 22:15 501787.04 -0.025880 0.093038 0.067158 22:30 501784.93 -0.008722 0.077912 0.069190 22:45 501777.51 0.006912 0.066737 0.073649 23:00 501772.63 0.019284 0.057733 0.077016 23:15 501784.55 0.020477 0.049306 0.069784 23:30 5018i5.30 0.006679 0.044955 0.051634 23:45 501811.83 -0.001402 0.040101 0.038699 00:00 501802.49 -0.003589 0.035362 0.031772 00:15 501786.26 0.000209 0.031598 0.031807 00:30 501785.13 0.003278 0.028384 0.031662 00:45 501777.59 0.007492 0.025851 0.033343 l 01:00 501776.23 0.DiC865 0.023595 0.034460 01:15 501808.74 0.006056 0.021954 0.028010 01:30 501784.76 0.007212 0.020049 0.027261 01:45 501747.55 0.015034 0.019947 0.034981 ! 02:00 501810.12 0.010128 0.018969 0.029097 02:15 501795.06 0.008601 0.017556 0.026157 ; 02:30 501750.50 0.013994 0.017096 0.031090 02:45 501780.88 0.013977 0.015859 0.029836 03:00 501795.62 0.011946 0.014887 0.026833 03:15 501793.23 0.010507 0.013955 0.024462 03:30 501772.49 0.011640 0.013091 0.024731 1 03:45 501802.56 0.009273 0.012483 0.021756 04:00 501775.13 0.010039 0.011742 0.021781 04:15 501771.69 0.010958 0.011080 0.022038 04:30 501746.01 0.013998 0.010857 0.024855 04:45 501792.45 0.012527 0.010348 0.022875 05:00 501778.15 0.012387 0.009784 0.022171 05:15 501783.19 0.011830 0.009280 0.021109 05:30 501761.84 0.012869 0.008857 0.021727 05:45 501785.01 0.012103 0.008443 0.020546 06:00 501761.22 0.012977 0.008073 0.021050 06:15 501758.98 0.013831 0.007730 0.021561 06:30 501796.13 0.012287 0.007519 0.019806 06:45 501782.28 0.011705 0.007196 0.018902 07:00 501742.78 0.013343 0.007056 0.020399 07:15 501748.48 0.014439 0.006830 0.021268 07:30 501781.92 0.013669 0.006579 0.020248 07:45 501788.96 0.012614 0.006386 0.019000 Page 1 of 2 l

ATTA0 MENT 3.3B D7TIIFATID LETEAGE PATE TEST FRCH 1945 HOURS Qi 5/27/93 TO 1945 HOURS QJ 5/28/93 ABSOIUTE TEST MEIHOD, MASS FODIT ANALYSIS TEST MEIHOD ' (c:ontinued) ! Time Mass Leakage Confidence UCL ! (hh:rrn) (LbM) (PCT./ DAY) (PCT./ DAY) (PCT./0AY) l 08:00 501788.88 0.011656 0.006193 0.017849 08:15 501754.31 0.012331 0.005979 0.018310 08:30 501776.25 0.011956 0.005754 0.017710

08: 45 501773.04 0.011729 0.005536 0.017265 09:00 501768.25 0.011695 0.005325 0.017020 09:15 501766.55 0.011706 0.005127 0.016832 09:30 501804.97 0.010266 0.005132 0.015397 09:45 501754.45 0.010766 0.004971 l i

0.015737 10:00 501761.35 0.010957 0.004799 0.015755 10:15 501788.16 0.010213 0.004687 0.014900 I 10:30 501781.23 0.009749 0.004550 0.014299 10:45 501771.84 0.009608 0.004399 0.014007 ; 11:00 501741.49 0.010383 0.004319 0.014702 11:15 501766.69 0.010332 0.004179 0.014511 a 11:30 501760.08 0.010457 0.004043 0.014505 , 11:45 501720.19 0.011654 0.004087 0.015741 ) 12:00 501748.52 0.011972 0.003972 0.015944 12:15 501714.67 0.013122 0.004008 0.017129 12:30 501743.13 0.013440 0.003899 0.017339 12:45 501756.28 0.013392 0.003784 0.017176 13:00 501767.43 0.013067 0.003687 0.016754 ' 13:15 501783.26 0.012389 0.003640 0.016029 , 13:30 501745.08 0.012607 0.003543 0.016151 . 13:45 501731.01 0.013100 0.003477 0.016577 14:00 501753.92 0.013054 0.003381 0.016435 l 14:15 501775.76 0.012545 0.003326 0.015871 14:30 501722.26 0.013139 0.003287 0.016426 l 14:45 501745.68 0.013215 0.003200 0.016416 15:00 501736.17 0.013454 0.003125 0.016579 l 15:15 501764.25 0.013139 0.003060 0.016199 ; 15:30 501761.99 0.012877 0.002993 0.015869 l 15:45 501728.50 0.013214 0.002935 0.016149 16:00 501745.75 0.013217 0.002862 0.016079 , 16:15 501739.90 0.013306 0.002794 0.016100 ! 16:30 501760.46 0.013040 0.002738 0.015778 16:45 501753.92 0.012886 0.002676 0.015563 i 17:00 501757.98 0.012669 0.002621 0.015291 ; 17:15 501747.62 0.012616 0.002561 0.015176 17:30 501770.89 0.012207 0.002532 0.014739 ' 17:45 501723.10 0.012516 0.002492 0.015008 18:00 501744.56 0.012488 0.002436 0.014924 ! 18:15 501710.49 0.012930 0.002419 0.015349 l 18:30 501770.83 0.012507 0.002400 0.014907 18:45 501763.34 0.012203 0.002366 0.014569 i 19:00 501761.31 0.011937 0.002329 0.014266 19:15 501749.91 0.011826 0.002281 0.014107 3 19:30 501776.84 0.011375 0.002275 0.013649 19:45 501766.94 0.011066 0.002247 0.013313 i i j Page 2 of 2 1 1 1 l

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   . .                                                                                                    j ATTAQMNT 3.3E SUPERIMPOSED LEAKAGE VERIFICATION TEST FR34 2045 HCCRS ON 5/28/93 'IO 0045 HOURS ON 5/29/93 RIDUGD INPUT VARIARTm Time       Press.       V.P.        Ternp. Dewpoint             Mass (hh:rryn)    (PSIA)     (PSI)         (R)          (F)

(LbM) { 20:45 57.027 0.3735 536.411 70.842 501731.56 i 20:50 57.029 0.3734 536.408 70.837 501750.62 , 20:55 57.028 0.3738 536.407 70.870 501742.66 ! 21:00 57.028 0.3766 536.413 71.085 501710.00 21:05 57.028 0.3783 536.419 71.221 501687.14 21:10 57.027 0.3745 536.416 70.925 501717.44 ' 21:15 57.028 0.3764 536.423 71.068 501702.68 l 21:20 57.027 0.3738 536.418 70.870 501719.50 21:25 5 57.026 0.3687 536.421 70.466 501751.94 21.:30 57.027 0.3787 536.424 71.254 501671.44 21:35 57.027 0.3762 536.422 71.058 501696.86 21:40 57.028 0.3757 536.431 71.014 501700.97 i 21:45 57.028 0.3720 536.431 70.726 501728.94 ! 21:50 57.027 0.3751 536.432 70.967 501694.23 21:55 57.029 0.3752 536.435 l 70.975 501711.57 ; 22:00 57.028 0.3765 536.440 71.076 501683.84 22:05 57.028 0.3756 536.437 71.009 501693.13 22:10 57.027 0.3751 536.437 70.972 501690.29 22:15 57,027 0.3800 536.441 71.348 501643.60 22:20 57.027 0.3740 536.440 [ 70.879 501694.77 22:25 57.025 0.3751 536.441 70.973 501671.71 -

22: 30 57.027 0.3743 536.448 70.907 501690.96 22:35 57.028 0.3704 536.447 70.600 501732.33 22:40 57.027 0.3757 536.453 71.014 501674.26 22:45 57.027. 0.3727 536.458 70.779

{ 501694.91 22:50 57.026 0.3760 536.456 71.042 501659.77 < 22:55 57.029 0.3731 536.458 70.814 501705.43 ' 23:00 57.028 0.3757 536.456 71.020 501673.75 23:05 57.028 0.3765 536.466 71.082 501655.42 23:10 57.027 0.3733 536.465 70.824 501681.03 23:15 57.026 0.3741 536.462 70.890 501672.21 - i 1 23:20 57.026 0.3742 536.466 70.901 501667.67 23:25 57.026 0.3735 536.470 70.841 501663.11 23:30 57.025 0.3758 536.471 71.023 501639.24 23:35 57.027 0.3715 536.474 70.683 501688.68 23:40 57.027 0.3731 536.476 70.810 501675.77 23:45 57.027 0.3763 536.477 71.066 501640.72 23:50 57.026 0.3758 536.479 71.025 501637.87 23:55 57.027 0.3754 536.480 70.995 501650.61 00:00 57.027 0.3736 536.487 70.855 501658.77 00:05 57.027 0.3731 536.488 70.814 501659.02 00:10 57.026 0.3745 536.486 70.919 501641.63 00:15 57.026 0.3764 536.488 71.067 501623.66 00:20 57.025 0.3718 536.496 70.709 501649.67 00:25 57.025 0.3788 536.495 71.255 501582.85 ! , 00:30 57.026 0.3733 536.496 70.829 501644.83 1 00:35 57.026 0.3742 536.500 70.900 501633.92 00:40 57.027 0.3739 536.498 70.874 501642.15 00:45 57.026 0.3735 536.501 70.846 501633.55 s Page 1 of 1 i

ATIACHMDTT 3.3F i 4 SUPERIMPOSII) LEAKAGE VERIFICATION TEST FRCH 2045 HOURS ON 5/28/93 'IO 0045 HOURS ON 5/29/93 ABSOIDIE TEST MEIHOD, MASS POIITT ANALYSIS TEST MEIHOD Time Mass Leakage Confidence UCL (hh:m) (LbM) (PCT./ DAY) (PCT./ DAY) (PCT./0AY)

20:45 501731.56 20:50 501750.62 21:00 501710.00 4 21:15 21:20 501719.50 21:25 501751.94 501671.44 0.222404 21:40 501700.97 21:45 501728.94 21:55 501711.57 22:05 501693.13 4 22:15 501643.60 22:25 501671.71 501694.91 0.110938 j 22:55 j 23:00 23:20 501667.67 ] 23:25 23:30 501639.24 I 23:35 501688.68 23:50 501637.87- 0.000000 0.000000 0.000000 [ 0.000000 0.000000 0.000000 20:55 501742.66 -0.318537 3.829623 3.511086 , 0.417021 1.381328 1.798349 21:05 501687.14 0.743077 0.777033 1.520110 21:10 501717.44 0.481666 0.561830 1.043496 ' 501702.68 0.427468 0.380761 0.808229 ' 0.288791 0.314821 0.603613 ! 0.080689 0.329168 0.409858 t 21:30 ! 0.299289 0.521693 21:35 501696.86 0.223266 0.240896 0.464162 , 0.206097 0.198992 0.405089 , 0.135990 0.181807 0.317797 21:50 501694.23 0.144975 0.154788 0.299762 I 2 0.122297 0.135199 0.257497 22:00 501683.84 0.139544 0.118886 0.258430 , 0.138181 0.104365 0.242546 j 22:10 501690.29 0.137664 0.092353 0.230017 ' 0.177434 0.091486 0.268920 l 22.20 501694.77 0.161914 0.083509 0.245423 , 0.165517 0.075408 0.240925 22:30 501690.96 0.153157 0.069462 0.222619 j i 22:35 501732.33 0.116278 0.073108 0.189386 i 22:40 501674.26 0.120052 0.066969 0.187021 22:45 l 0.062143 0.173081 l 22:50 501659.77 0.120060 0.057960 0.178020 ! 501705.43 0.105547 0.055454 0.161001 ! 501673.75 0.106587 0.051622 0.158009 23:05 501655.42 0.113947 0.048350 0.162297 23:10 501681.03 0.109713 0.045258 0.154971 23:15 501672.21 0.108645 0.042298 0.150943 a 0.108629 0.039608 0.148237 501663.11 0.109432 0.037175 0.146608 1 0.116460 0.035622 0.152082 ! 0.108281 0.034493 0.142774 j 23:40 501675.77 0.104241 0.032786 0.137027 23:45 501640.72 0.108963 0.031328 0.140291 ' 0.113200 0.029942 0.143141 23:55 501650.61 0.113568 0.028387 0.141955 00:00 501658.77 0.111755 0.027007 0.138762 00:05 501659.02 0.109755 0.025746 0.135501 00:10 501641.63 0.110981 0.024533 0.135513 00:15 501623.66 0.114962 0.023695 0.138657 00:20 501649.67 0.113551 0.022647 0.136198 00:25 501582.85 0.123108 0.023534 0.146641 00:30 501644.83 0.121258 0.022570 0.143828 00:35 501633.92 0.120976 0.021601 0.142577 00:40 501642.15 0.119214 0.020761 0.139976 00:45 501633.55 0.118578 0.019914 0.138492 Page 1 of 1

1 . . SECTION 4 i IDCAL LEAKAGE RATE TESTS (TYPES B AND C) Incal leak Rate Testing (LU6) of containnent penetrations is performed on a ; periodic basis (normally each refueling, but not exceeding 24 months), in accordance with 10 CFR 50 Apperdix J and Beaver Valley Pcuer Station #1 Technical Specifications. These LIRT's are perforned by pressuriziry the i required penetrations with air or nitrogen and either measuring leakage across ! , the containnent isolation valves boundary (Type C), or across the resilient l 7 seals (Type B). The cambined leakage rate of containnent penetrations subject ) to URT's shall be less than 60 percent Ia, at a minimum test pressure of Pa. ' Additionally URT's (Total Volume Type B) are performed for each containment airlock at 6 month intervals in accordance with 10 CFR 50 Appendix J, aid j j 4 Beaver Valley Pcuer Station #1 Technical Specifications. ! 1 1 The attachments for this section are- r i

s i Attachnent No. Title 1 ; 5 2 4.1A Eighth Refueling (4/91 - 6/91) LIRT Data i

4 IB Eighth Refueling (4/91 - 6/91) LIRT Repairs j 1

j i j 4.1C Ninth Refueling (3/93 - 5/93) IIRT Data l l 4.1D Ninth Refueling (3/93 - 5/93) IlRT Repairs : i l !

4.1E Eighth and Ninth Fuel Cycle URT Data !

i i 5 l l i 4 1 a ? 1 o l 4-1 i

               , , . . ,       , . . - - .     ~ - . , - - . , ,         . . ~ . .       . .   -   ._. _      - - _ _ _ _ - - - -

q l ATTACH G7T 4.1A EICHTH REFUELING TYPE C TEST RESULTS CONTAINMENT AS FOUND AS LEFT ASSIGNED PENT VALVE DATE VALVE VALVE PENETRATION NO. MARK NO. TESTED LEAKAGE LEAXAGE LFAKAGE IN OUT (SCF/D) (SCF/D) (SCF/D) MOV-1CC-112A2 X 05-03-91 0.47 0.47 1 1.98 , ICCR-247 X 05-03-91 1.98 1.98 l MOV-1CC-112B3 X 04-30-91 0.47 0.47 l 2 11.29 ' 1CCR-252 X 04-30-91 11.29 11.29 l l MOV-1CC-112A3 X 05-03-91 9.83 9.83 4 12.45 . 1CCR-251 X 05-03-91 12.45 12.45 , MOV-1CC-112B2 X 04-30-91 0.47 0.47 5 . 5.65 > 1CCR-248 X 04-30-91 5.65 5.65

                               --                                                    t i

TV-1CC-107D1 X 05-14-91 1.44 1.44

8 1,44 .

TV-1CC-107D2 X 05-14-91 0.62 0.62 l TV-1CC-111D1 X 04-18-91 3.28 3.28 j 9 3.28 : TV-1CC-111D2 X 04-18-91 0.91 0.91 TV-1CC-110D X 04-19-91 5.15 5.15 l 11 TV-1CC-110F1 X 5.15 04-19-91 0.49 0.49 i TV-1CC-110F2 X l 1FP-827 X 05-02-91 0.47 0.47 13 0.70 TV-1FP-107 X 05-02-91 0.70 0.70 TV-1CC-110E3 X 04-18-91 0.47 0.47 14 0.47 TV-1CC-110E2 X 04-18-91 0.47 0.47 TV-1CC-111A2 X 06-05-91 2796 8.90 16 8.90 ! TV-1CC-111A1 X 05-13-91 3.38 3.38 TV-1CC 103B1 X 05-15-91 0.46 0.46 17 6.74 TV-1CC-103B X 05-15-91 6.74 6.74 TOTAL PENETRATION LEAKAGE SHEET 1 (SCF/D) 58.05 Page 1 of 8 l

e . ATIACWaE 4.1A (continued) t EIGHTH REFUELING TYPE C TEST RESULTS CONTAINMENT AS FOUND AS LEFT i.SSIGNED PENT VALVE DATE VALVE VALVE PENETRATICN NO. MARX NO. TESTED LEAKAGE LEAKAGE LEAXAGE IN OUT (SCF/D) (SCF/D) (SCF/D) TV-1CC-103C1 X 05-06-91 0.47 0.47 18 3.95 TV-1CC-103C X 05 06-91 3.95 3.95 l MOV-1CH 378 X 05-04-91 17.33 17.33 19 1CH-369 X 17,33 MOV-1CH-381 X 05 04-91 0.47 0.47 ; 151-42 X 05-10-91 3.37 3.37 20 3.37 ; ISI-41 X 05-10-91 0.47 0.47 1 1RH-14 X 05-04-91 0.49 0.49 24 1RH-16 X 05-04-91 0.47 0.47 4.68 1RH-15 X 05-07-91 4.68 4.68 TV-1CC-105D1 X 06-09-91 185.93 88.81 - 25 88.81 t TV-1CC-105D2 X 05-15-91 . 55.01 55.01 t TV-1CC-107El X 05-31-91 18.71 75.42 26 75.42 j TV-1CC-107E2 X 05-11-91 0.79 0.79 1 2 TV-1CC-105El X 05-11-91 5.14 5.14 27 5.14 ) TV-1CC 105E2 X 05-11 91 0.56 0.56 TV-1CH-200A X 3 TV-1CH-200B X 05-13-91 6.08 24.23 TV-1CH-200C X 28 j RV-1CH-203 X 05-13-91 0.47 0.47 94.87 MOV-1CH-142 X 04-29-91 70.17 70.17 i' TV-1CH-204 X 04-29 91 0.47 0.47 TOTAL PENETRATION LEAKAGE SHEET 2 (SCF/D) 293.57 i Page 2 of 8 j l l I

   . __        m  .        ~ __ __ _                       _   __          ._      _              _

ATIACHMD7I 4.1A (continued) EIGHTH REFUELING TYPE C TEST RESULTS i CONTAIN. MENT AS FOUND AS LEFT ASSIGNED PENT VALVE DATE VALVE VALVE PENETRATICN NO. MARX NO. TESTED LEAKAGE LEAXAGE LEAKAGE IN OUT (SCF/D) (SCF/D) (SCF/D) TV-1DC-108A X 05-04-91 6.56 6.56 ; 29 6.56 ! TV-1DC-108B X 05-04-91 4.68 4.68 l 1FP-804 X 05 10-91 > 2820 2.34 ! 31 2.34 I

!                      TV-1FP-105                  X   05 01-91       0.47       a.47                  l i

, 1FP-800 X 05-01-91 0.51 0.51 # 32 0.51 TV-1FP-106 X 05-01-91 0.47 0.47 ! TV-1DA-100A X 05-17-91 40.70 44.20 l 38 44.20

;                      TV-1DA-1003                 X   05-06-91       5.15       5.15                  ;

J ISA-15 X 04-15-91 17.21 17.21 42 17,21 3 ISA-14 X 05-07-91 52.58 4.28 TV-1CV-102-1 X 04-16-91 0.47 0.47 43 0.47 i TV-1CV-102 X 04-16-91 0.47 0.47 TV-1CV-101A X 04-16-91 12.17 12.17 44 12.17 : TV-1CV-101B X 04-16-91 9.83 9.83 l 1RC-72 04-17-91 X 20.70 20.70 ; 45 20.70 l } TV-1RC-519 X 04-17-91 0.47 0.47 l 11A-91 X 05-07-91 33.25 33.25 i j 47 --- 33.25 : } IIA-90 X 05-07-91 1.50 1.47 l TV-1DG-109A2 X 05-01-91 0.47 0.47 ! 48 0.47 i TV-1DG-109Al X 05-01-91 0.47 0.47 ; 1RC-68 X 05-25-91 210.33 56.30 49 56.30 TV-1RC-101 X 05-18-91 0.55 0.55 1 TOTAL PENETRATION LEAKAGE SHEET 3 (SCF/D) 194.18 4 4 Page 3 of 8 l i i i

                      -.               -.       =       ..                 . _ . - .                     -.      .                       ..

i i 1 ATTAOMENT 4.1A (continued) f l j EIGHTH PEFUELING TYPE C TEST RESULTS I CONTAINMENT AS FOUND AS LEFT ASSIGNED i PENT VALVE f DATE VALVE VALVE FENETRATION NO. MARK No. TESTED LEAKAGE LEAKAGE LEAKAGE { IN j OUT (SCF/D) (SCF/D) (SCF/D) ; TV-1SI-101-2 X 05-09-91 9.52 9.52 53 17,67 : TV-1SI-101-1 X 05-26-91 80.96 17.67 ! ! j TV 1SS-109Al X 05-04-91 0.47 0.47 ! 55-1 0.47 I TV-1SS-109A2 X 05-04-91 0.47 0.47 TV-1LM-100A1 X 04-15 91 0.47 0.47 ! 55-2 0.47 ! NOTE 1 TV-1LM-100A2 X 04-15-91 0.47 0.47 f TV-1SS-111A1 X 05-04-91 0.47 0.47 !

55-4 0.47 TV-1SS-111A2 X 05-04-91 0.47 0.47 l

! TV-1SS-100A1 X 05-04-91 0.47 0.47 !

56-1 0.47 ;

TV-1SS-100A2 X 05-04-91 0.47 0.47 ; i TV-1SS-102A1 X 05 1,1-91 0.47 0.47 56-2 0.47 i

TV-1SS-102A2 X 05-11-91 0.47 0.47 i TV-1SS-105A1 X 05-22-91 0.47 0.47 56-3 0.47 TV-1SS-105A2 X 05-22-91 0.47 . 0.47 l y TV-1CC-103Al X 05-08-91 0.47 0.84 i 4

58 14.13 l a TV-1CC-103'A X 05-06-91 14.13 14.13 l IQS-4 X 04-24-91 0 47 0.47 [ l 63 14.96 { MOV-1QS-101B X . 06-08-91 682.17 14.96 i j 3 IQS-3 X 04-24-91 6.11 6.11 ! 64 19.27 ! 3 MOV-1QS-101A X 04-24-91 19.27 19.27 j

i TOTAL PENETRATION LEAKAGE SHEET 4 (SCF/D) 68.85 :

l NOTE 1 - INCLUDES PENETRATIONS 57-1.57-2, AND 97-3 VHICH ALSO SHARE THESE CNMT ! ISOLATION VALVES THROUGH A COMMON 4 VAY VALVE. ! . I 1 i l Page 4 of 8 l t i I

             -                                                                                                                              (
                                                           . . ,                     _ , . -       =~_             _ , . . , . - _ - . _

ATTACHMB7T 4.IA (continued) EIGHTH REFUELING TYPE C TEST RESULTS t CONTAINMENT AS FOUND AS LEFT ASSIGNED PENT VALVE DATE VALVE VALVE PENETRATION No. MARK NO. TESTED LEAXACE LEAKAGE LEAFACE : IN OUT (SCF/D) (SCF/D) (SCF/D) ! 70 1RS-101 X 05-22-91 5.17 3.28 3.28 l 71 1RS-100 X 05-29-91 15.98 1.13 1.13 1HY-197 X 04-20-91 1.60 0.66 ; 87 0.66 ; IHY-lli X 04-20-91 28.17 0.47 l 1HY-196 f X 04-17 91 0.70 0.70 88 0.70 ! 1HY-110 X 04-17-91 0.70 0.70 . i i 1AS-278 X 05-16-91 211.71 20.01 . 89 20.01 ! l TV-1SV-100A X 04-20-91 7.06 7.06 IVS-D-5-3B X l 90 04-22-91 9.37 9.37 9.37 , l IVS-D-5-3A X ! IVS-D-5 5B X s i j 91 1VS-D 5-5A X 04-22-91 4.59 4.59 4.59 IVS-D-5-6 X l TV-1CV-150C X 04-17-91 4.70 4.70 1KY-102 X 04-17-91 4 70 4.70 92 23.52 TV-1CV-150D X 04-17-91 18.82 18.82 1KY-104 X 04-17-91 4.70 4.70 TV-1CV-150B X 04 16-91 3.29 3.29 1HY-101 X 04-16-91 0.47 0.47 93 4.23 TV-lCV-150A X 04-16-91 3.76 3.76 1RY-103 X 04-16-91 0.47 0.47 TOTAL PENETRATION LEAKAGE SHEET 5 (SCF/D) 67.49

                                                                                   .a l

t i Page 5 of 8 l l

ATTACHMENT 4 3A (continued) . EIGHTH REFUELING TYPE C TEST RESULTS , CONTAINMENT AS FOUND AS LEFT ASSIGNED PENT VALVE DATE VALVE VALVE PENETRATION NO. MARX NO. TESTED LEAKAGE LEAKACE LEAJACE IN OUT (SCF/D) (SCF/D) (SCF/D) ; a HCV-1CV-151 X 04-30-91 7.48 7.48 90 9.37 HCV-1CV-151-1 X 05-04-91 > 2820 9.37 i SOV-1HY-102B1 X 04-22-91 0.47 0.47-95-64 0.47 $ SOV-1HY-102B2 X 04-22-91 0.47 0.47 ! SOV-1HY-103B1 X 04-22-91 0.47 0.47 95-69 0.47 ! SOV-1HY-103B2 X 04-22-91 0.47 0.47 i SOV-1HY-104B1 X 04-22-91 0.47 0.47 i 95-72 . 0 47 SOV-1HY-104B2 X 04-22-91 0.47 0.47 TV-1SS-104A1 X 05-02-91 0.47 0.47 97-1 0.47 TV-1SS-104A2 l X 05-02-91 0.47 0.47 l TV-1SS-103Al X 05-02-91 0.47 0.47 l 97-2 0.47 TV-1SS-103A2 X 05-02-91 0.47 0.47 i IPC-38 X 04-22-91 0.47 0.47 i 103 0.47 l IPC-37 X 04-22 91 0.47 0.47 : IPC-9 X 04 .'0-91 3.77 3.77 104 3.77 IPC-10 X 04-20-91 0.47 0.47 TV-1SS-112A1 X 05-10-91 3.74 3.74 105-2 3.74 TV-1SS-112A2 X 05-10-91 3.74 3.74 MOV-1SI-842 X 04-23-91 0.47 0.47 106 0.47 TV-1SI-889 X 04-23-91 0.47 0.47 SOV-1HY-102A1 X 04-22 91 0.47 0.47 109-44 0.47 SOV-1HY-102A2 X 04-22-91 0.47 0.47 I l TOTAL PENETRATION LEAKAGE SHEET 6 (SCF/D) 20.64 i Page 6 of 8

ATIAGEE?TT 4.1A (continued) EIGHTH REFUEEING TYPE C TEST RESULTS CONTAINMENT AS FOUND AS LEFT ASSIGNED PENT VALVE DATE VALVE VALVE PENETRATION NO. MARK NO. TESTED LEAKAGE LEAKAGE LEAKAGE IN OUT (SCF/D) (SCF/D) (SCF/D) SOV-1HY-103Al X 04-22 91 0.47 0.47 109-49 0.47 [ SOV-1HY-103A2 X 04-22-91 0.47 0.47 , 50V-1HY-104A1 X 04-22-91 0.47 0.47 109-52 0.47 SOV-1HY-104A2 X 04-22-91 0.47 0.47 l 1RC-277 X 04-23-91 0.47 0.47 110 1 0.47 1RC-278 X 04-23-91 0.47 0.47 s -- IVS-169 X 05-08-91 0.47 0.47 IVS-170 X 05-01-91 0.47 0.47 P.A.L. (NOTE 2) 1VS-167 X 05-01-91 0.47 0.47 IVS-168 X 05-01-91 0.47 0.47 10TAL PENETRATION LEAKAGE SHEET 7 (SCF/D) 1.41 I NOTE 2 - THE ASSIGNED PENETRATION LEAKAGE FOR THESE VALVES IS ADDED WITH THE , PERSONNEL AIRLOCK OVERALL TYPE B LEAKAGE, AND NOT INCLUDED IN THE TYPE C ' TOTAL. P.A.L. - PERSONNEL AIRLOCK TOTAL PENETRATION LEAKAGE SHEET 1 (SCF/D) 58.05 TOTAL PENETRATION LEAKAGE SHEET 2 (SCF/D) 293.57 j i TOTAL PENETRATION LEAKAGE SHEET 3 (SCF/D) 194.18 TOTAL PENETRATION LEAKAGE SHEET 4 (SCF/D) 68.85 ! TOTAL PENETRATION LEAKAGE SHEET 5 (SCF/D) 67.49 j TOTAL PENETRATION LEAKAGE SHEET 6 (SCF/D) 20.64 TOTAL PENETRATION LEAKAGE SHEET 7 (SCF/D) 1.41 l TOTAL CONTAINKENT TYPE C LEAKAGE - SUM OF SHEETS 1 THRU 7 (SCF/D) 704.19 Page 7 of 8

l ATIAGEE27T 4.1A (continued) l ETCHTH REFUELING TYPE B AND C TEST RESULTS l AS FOUND AS LEFT ASSIGNED i i PENETRATION DATE LEAKAGE LEAKAGE PENETRATION l TESTED (SCF/D) (SCF/D) LEAXAGE

Electrical Penetrations 04-15-91 35.66 22.27 22.27 ! Fuel Transfer Tube 06-07-91 0.47 13.03 13.03 Penetration will 04-15-91 0.47 0.47 0.47 i' Penetration all2 04-15-91 0.47 0.47 0.47 , Equipment Hatch ! Outer Flange 06-10-91 0.47 0.47 0.47 Equipment Hatch Inner Flange 06-12-91 0.48 [ 0.47 0.47 l Personnel Airlock 06-05-91 288.59 123.29 123.29 i Equipment Hatch ! Airlock 06-13-91 13.04 7.07 7.07 l i t Total Type 'B' Leakage 167.54 SCF/D ; Total Type 'C' Leakage 704.19 SCF/D t Total Type ' B ' and ' C ' Le aka ge 871.73 SCF/D (Acceptance Criteria < 3,929.00 SCF/D [0.6 La]) ! l l l t 1 i 1 } Page 8 of 8 4 l I I

.(.

ATTAWMDTT 4.1B , EIQmi REFUELING IOCAL LEAFAGE RATE TEST REPAIRS I ! Penetration No. 16 The "As-Found" leak test was performed on May 13, 1991. Due to excessive seat leakage, Maintenance Work Request 913397 was initiated for valve TV-1CC-111A2. , . The valve actuator was first checked by I&C. Following verification of proper ' actuator operation, Maintenance Work Request 913445 was initiated. The valve i i seat rirg was replaced ard the seat was lapped. An "As-Inft" leak test was ; d perforred on June 5,1991, with a leakage of 8.90 SCF/D reasured. ' 1 !

Penetration No. 24 !

J ! The "As-Found" leak test was performed on May 4, 1991. Due to a body to bonnet l leak during operation, Maintenance Work Request 900978 was initiated for valve ; 1FJi-15. The body to bonnet gasket was replaced and the valve was repacked. An [

         "As-Inft" leak test was performed on May 7,1991, with a leakage of 4.68 SCF/D            '

measured. # l Penetration No. 25 ! The "As-Found" leak test was performed on May 15, 1991. Due to excessive seat :

leakage, Maintenance Work Request 913398 was initiated for valve TV-1CC-105D1. [

i The valvre actuator was first checked by I&C. Following verification of proper ! j actuator operation, Maintenance Work Request 914014 was initiated. The valve '

seat ring was replaced and the seat and plug were lapped. An "As-left" leak test was perforned on June 9,1991, with a leakage of 88.81 SCP/D neasured. '

Penetration No. 26 i

i

. The "As-Found" leak test was performed on May 11, 1991. Due to valve t TV-1CC-107El failing OST 1.1.16 " Diaphragm Integrity Test", Maintenance Work ,

i. acquest 910695 was initiated by Operations. A loose stem nut was found to be l

] the cause of the failure and the actuator was re-assenbled with a new ' l diaphragm. Following the repair a retest was performed on May 29, 1991. Due ! j to excessive seat leakage, Maintenance Work Request 913760 was initiated. The ' s valve actuator was found out of adjustnent and repaired. An "As-left" leak : test was perforced on May 31, 1991, with a leakage of 75.42 SCF/D measured. i l Penetration No. 28 i

        'Ihe "As-Found" leak test was performed on April 29, 1991. As a preventive reasure, the actuator of valve 7V-1G-200C was rebuilt per Paintenance Work

{

,       Raquest 912751.       An "As-Inft" leak test was perforred on May 13, 1991, with a        i Icakage of 24.23 SCF/D measured.                                                          I 7he "As-Found" leak test was performed on April 29, 1991. Due to relief valve             )

RV-101-203 suspected of leaking by during operation, Maintenance Work Rcquest d 910615 was initiated by Operations. The valve was removed, bench tested *

.       satisfactorily ard reinstalled.          An "As-left" leak test was performed on

May 13, 1991, with a leakage of 0.47 SCF/D reasured, t 1

Page 1 of 4 : i

ATTAGEDTT 4.1B (continued) EIGTIH REFUELING IDCAL LEAKAGE RATE TEST REPAIRS Penetration No. 31 The "As-Found" leak test was performed on May 1, 1991. Due to excessive seat l ] leakge, Maintenance Work Request 913370 was initiated for valve 1FP-804. The l valve disc arm set screw had become loose allowing the disc to shift fram the l center of the seat. Following the repair an "As-Irft" leak test was performed I

on May 10, 1991, with a leakage of 2.34 SCP/D measured. )

Penetration No. 38 The "As-Found" leak test was performed m day 6, 1991. As a preventive

;          measure, the actuator of valve TV-1DA-100A was rebuilt per Maintenance Work i          Request 9127531.       An "As-Left" leak test was performed on May 17, 1991, with a             i leakage of 44.20 SCP/D measured.                                                               i l                                                                                                          i Penetration No. 42                                                                             i 4

The "As-Faarri" leak test was perfor, lad on April 15, 1991. Due to excessive l I ! seat leakage, Maintenance Work Request 913363 was initiated for valve 1SA-14. ! l The valve wedge was lapped. An "As-Inft" leak test was perforned on i May 7, 1991, with a leakage of 1.47 SCP/D measured. j ! Penetration No. 47 ! 1 I The "As-Found" leak test was perforned on May 7, 1991. Due to excessive )i i packing leakage during operation, Maintenance Work Request 903972 was initiated for valve lIA-90 prior to the outage. The valve packing was replaced. An i "As-Inft" leak test was performed on May 7, 1991, with a leakage of 1.47 SCF/D l } measured. i 4 Penetration No. 49 ' The "As-Found" leak test was perfomed on April 20, 1991. Due to excessive seat leakage, Maintenance Work Request 913366 was initiated for check valve i 1RC-68. Maintenance Work Request 913 392 was initiated for valve IRC-69, a !' penetration boundary valve, which was also contributing to the high leakage measurement. The closing spring was replaced for valve RC-68 and the diaphragm

was replaced for valve IRC-69. An "As-IEft" leak test was performed on May 25, 1991, with a leakage of 56.30 SCF/D measured.

4 An "As-Found" leak test was attempted on April 20, 1991 for valve TV-1RC-101; } l however, due to a leaking test connection, an accurate leakage rate was nct able to be neasured. Maintenance Work Request 913365 was initiated to replace l the test connection. Following the replacemert, an acceptable "As-left" leak test was perforned on May 18, 1991. , j J ! Page 2 of 4 i i

                                             ---n-.                 - -

l i ATTACH 4DJT 4.1B (continued) l EIGTIH REFUELING IDCAL LEAKAGE RATE TEST REPAIRS [ 2 i Penetration No. 53 ! The "As-Found" leak test was perfomed on May 9, 1991. Due to excessive , ! leakage, Maintenance Work Request 913396 was initiated for valve 'IV-1SI-101-1. j The valve seat and plug were cleaned ard the valve rebuilt with original e t parts. An "As-Inft" leak test was performed on May 26, 1991, with a leakage of l 17.67 SCF/D measured. [ t . Penetration No. 58 [ I I The "As-Fourd" leak test was performed on May 6, 1991. Due to excessive l pack 1rg leakage, Maintenance Work Request 913607 was initiated for valve 7V-10C-103Al by Operations. The valve packing was replaced. An "As-Left" leak ' test was performed on May 8,1991, with a leakage of 0.84 SCF/D measured.

l Penetration No. 63 i i The "As-Found" leak test was perforred on April 24, 1991. Due to excessive seat leakage, Maintenance Work Request 913367 was initiated for valve j JDV-1QS-101B. 7he valve wedge was replaced and lapped to the seats. An "As-Inft" leak test was performed on June 8, 1991, with a leakage of 14.96 , SCF/D neasured. [ l i Penetration No. 70 ! i

1he "As-Found" leak test was performd on April 18, 1991. Due to ! remmerdations from the valve vendor, check valve IRS-101 was modified per i Maintenance Work Request 893246. Following the modification, an "As-Inft" leak ; .l test was performed on May 22, 1991, with a leakage of 3.28 SCF/D neasured. I

Penetration No. 71 1 t

3 The "As-Found" leak test was performed on April 18, 1991. Due to r - ndations from the valve vendor, check valves 1RS-100 was modified per i Maintenance Work Request 893245. Followire the modification, an "As-Inft" leak j test was performed on May 29, 1991, with a leakage of 1.13 SCF/D neasured. I i i Penetration No. 87

      'Ihe "As-Fourd" leak test was performed on April 17, 1991. Dae to excessive

seat leakage, Maintenance Work Request 913364 was initiated for valve 1HY-111.

The valve body, ball, studs, stem, o-rfngs, and stem seals were replaced. An "As-Inft" leak test was performed on April 20, 1991, with a leakage of 0.47 SCF/D neasured. The outboard valve, Eff-197, was also retested; since the stem seals of valve Uff-111 were leakirg durirg its "As-Found" leak test. 1 Page 3 of 4 i 1 a

   , 7 a

i ATTACHGITF 4.1B (continued) EIGfDI REEUELING IIIAL IIAKAGE RATE TEST REPAIRS i

Penetration No. 89 ; t 7he "As-Found" leak test was performed on April 20, 1991. Due to , recomendations from the valve vendor, check valve IAS-278 was nodified per ' Maintenance Work Request 894435. Followirg the modification, an "As-Left" leak l test was performed on May 16, 1991, with a leakage of 20.01 S J/D neasured. Penetration No. 94 ' t i

      'Ihe "As-Found" leak test was performed on April 30, 1991. Due to the exterral              ,

stop being bent for valve HCV-1CV-15-1, the valve closed beyond its optimum

!     seatiry position (butterfly valve).          Maintenance Work Pequest 913391 was            j i      initiated to repair the stop.           An "As-Isft" leak test was performed on             l May 4, 1991, with a leakage of 9.37 SCF/D measured.
                                                                                                  \

l Penetration No. 105-2 [ The "As-Found" leak test was attempted on May 4, 1991. Due to excessive leakage through the packing of bourdary valve 7V-1SS-110, Maintenance Work , l Rcquest 913393 was initiated. Folloairq the repair of valve 7V-1SS-110, an l [ "As-Left" leak test was perforned on May 10, 1991. , B i i l i i i , 1 4 i , 4 l t i F I l t i Page 4 of 4 i

l l l ATIACH G T 4.1C l 1

                               ';INTH ?EF'JEEI'!C TY?E C TEST ?ESULT5                           !

CCNTAINMENT AS FOL'ND AS LEFT- ASSICNED PENT VALVE DATE VALVE VALVE PENETF.ATICN I NO. MARK NO. TESTED LEAKACE LEAKAGE LEAKAGE !

IN CUT (SCF/D) (SCF/D) (SCFeD) 0.47 0.47 l MCV-lCC-il2A2fX l0429-93 1 3.23 1 CR-2t.7 l X 04-29-93 3.23 3.23 MOV-1CC.11233 X l05-07-93l 0.47 1.64 l 2 34.56

1CCR-252 l lX lC4-27-93 34.56 34.56 4

MOV-1CC-112A3 l X l04-29-93l 0.47 0.47 ; 22.63 1CCR-251 X l04-29-93 22.68 22.63 i MOV-lCC-11232 X l05-02-93 0.47 0.47 l 5 3.12 i ICCR-248 lX l04-27-93 3.12 3.12 ! TV-1CC-107D1 X l05-14-93f 1.41 0.47 8 0,57 TV-1CC-107D2 l X l05-14-93l 0.57 0.57 ! l , T1-1CC-111D1 X l 04-06-93 0.47 0.47 9 0.57 l ; T/-1CC-111D2 X 04-06-93 0.57 0.57 TJ-lCC-110D X 04-03-93 0.66 0.66 1 11 TV-lCC-110F1 X 0.66 04 03-93 0.47 0.47 , T/-lCC-110F2 X I 1FF 827 X I' 05-01-93l 0.47 0.47 13 O.47 T/-lFP- 107 X l05-01-93 0.47 0.47 TJ 1CC-110E3 X 04-03-93 0.47 0.47 14 0.47 TJ-1CC-110E2 X 05-21 93 0.47 0.47 TV-1CC-111A2 X 04-26-93 0.47 0.47 : < 16 10.21 l TV-1CC-111A1 X l04-26-93 10.21 10.21 TV-1CC-10331 X 05-09-93l 0.94 0.47 TJ-1CC 103B X 05-08-93 6.24 S.49 TOTAL PENETRATION LEAXACE SHEET 1 (SCF/D) 85.03 Page 1 of 8 l _- 4

ATIA0FRE 4.1C (continued) bTTIM FEFtMG TGT C TEST RESLJL"S CO!CAHE.T AS RX'ND AS IH T ASSIG:ED FCC VAIJ/E CATE VALVE VALVE FETE"FATION

    !O.       MARK 10.                  TESTED    IEATEE    IIAFAGE   IEAKAGE    !

Ul CLT (SCF/D) (SCF/D) (SCF/D) ! W-1CC-103C1 lX 05-16-93 5.25 35.45 l W-1CC-103C fX 05-08-93 29.99 28.49

         !OV-1G-378         X 04-06-93   28.78     28.78
         !OV-1G-381               X 04-06-93l 0.47         0.47 ISI-42             X         l04-12-93    1.88       1.88              l 20                                                                   1.88   :  '

I 1SI-41 X 04-12-93 0.47 0.47 1RH-14 X 04-30-93 0.49 l 0.49 24 1RH-16 X 05-03-93 704.4 14.03 15.5 1EH-15 X 04-30-93l 15.5 15.5 ! 25 W-1CC-105D1 lX 05-04-93 399.89 26.64 46.85 ' W-1CC-105D2 l X 05-04-93 1.99 46.85 W-1CC-107El X 04-17-93 79.9 0.94 26 10.2 W-1CC-107E2 X 04-17-93 8.51 10.2 , W-1CC-105El X 04-25-93 5.64 33.9 27 33.9 T'l-1CC-105E2 X 04-25-93 0.57 0.57 ' W-1G-200A X j l J W-1G-200B X 05-08-93 93.9 0.47 l W-1G-200C X 28 R/-1G-203 X 04-26-93 0.47 0.47 1.41 Kf/-1G-142 X 05-19-93 385.1 0.47 W-1G-204 X 04-26-93 0.47 0.47

 'IUIAL PDEIRATIOtt IEAKAGE SHEET 2              (SCP/D)              173.97 Page 2 of 8                                    l l

i

ATIACHMDfr 4.1C (contirn2ed) NINTH FEFJELI';C TYPE C TEST RESULTS 1 1 CONTAINMENT AS FOUND AS LEFT AS S *C::E0 . PENT VALVE DATE VALVE VALVE PENETRATICN , NO. MARK NO. TESTED LEAYAGE LEAXACE LEAFACE ! IN CUT (SCF/D) (SCF/D) (SCF/D) . i 4

TV-1DC-10BA 29 Xl 04-08-93 9.41 9.41 9.01 TV-1DC-10BB X 8.47 8.47 l04-0893 ! 1FP-804 X 0.70 0.70 31 l l05-01-93

                                        ,                                       0.70               l T1- 1FF - 10 5          X l'05-01-93         0.70       0.70                   l      !

32 1FP-800 lX f05-14-93 0.47 3.41 3.41 TV-1FP-106 X 0.47 0.47 l0430-93l , TV-1DA-100A X 05-17-93 207.00 0.47 . TV-10A-100B lX 05-05-93 44.70 4.30 ISA -15 X 52.48 21.52 42 {05-03-93 l 21.52 : ISA-14 X 114.51 6.55 l05-03-93 l , 43 TV-1CV-102-1 lX 03-31-93 0.47 0.47 0.47 TV-lCV-102 X 03 31-93 0.47 0.47 T!-1CV-101A X 03-31-93 0.47 0.47 44 i 0.47 TV-1CV-101B X 0.47 0.47 03-31-03l ; 1RC-72 X 2.82 2.82 l04-16-93 45 2.32 TV-lRC-519 X 0.47 0.47 I l04-16-93 ; , IIA-91 X 04-30-93 25.80 25f80 lIA-90 X l05-18-93 234.57 2.35 ! T/-1DG 109A2 X 04 07 93 2.12 2.12 48 3.29 TV-1DG-109Al X 04-07-93 3.29 3.29 1 1RC-68 X 05 03-93 117.60 13.55 49 ! 13.55 ! TJ- 1RC- 101 X 04-01-93 0.52 0.52 TOTAL PENETRATION LEAVAGE SHEET 3 (SCF/D) 85.74 I I Page 3 of 8 1 _I

ATIACNBiT 4.1C (continued) NETIM fin 7 r"O TYPE C TEST FISL*LTS CUCADERE AS FCCND ASSIQ;ID ! FDC VAI.VE CATE *%IVE AS LEFT iA!//E FD;EIPATICN I ( i

10. !%RK !O. I~ESTED IZAFME IEJEEE I.ZAIG4;E U1 CLT f '

(SCF/D) (SCT/0) (SCF/D) l T/-151-101-2 X 04-09-93 11.98 11.98 l 53 l 11.98 i T/-1SI-101-1 X 04-09-93 9.11 9.11 l T/-1SS-109Al X 05-09-93 0.47 0.47 j 55-1 0.47 ' T/-1SS-109A2 lX 05-09-93 0.47 0.47 ' T/-1IR-100A1 0.47 0.47 55-2 lX l03-29-93f + 0.47 ' NCTIE 1 T/-1IM-10CA2 X 03-29-93 0.47 0.47 i t . 55-4 T/-1SS-111A1 lX 04-16-93l 0.47 0.47 0.47 T/-ISS-111A2 X 04-16-93 0.47 0.47 T/-1SS-100A1 X 04-16-93 0.47 0.47 56-1 0.47 T/-ISS-100A2 X 04-16-93 0.47 0.47 T/-1SS-102A1 X 04-04-93 0.47 0.47 , 71-1SS-102A2 X 05-14-93 0.47 0.47 l T/-ISS-10aA1 X 05-14-93 0.66 0.47 - 56-3 0.47 i l T/-1SS-105A2 X 05-14-93 0.66 0.47 j T/-1CC-103Al X 05-07-93 2.35 3.42 53 l 4.98 i T/-1CC-103A X 05-07-93 5.39 4.98 l 1QS-4 X 04-15-93 0.47 0.47 63 17.89 M7/-1CS-101B X 05-18-93 0.47 17.39 l l 105-3 X 04-15-93 20.76 0.47 I 64 0.47 M7/-1CS-101A X 05-15-93 21.7 0.47 IUIAL PDEIPATICH IEAIGGE SHEET 4 (SCF/D) 38.14

    !UTE 1 - DG DES PDEIPATICNS 57-1,57-2, AND 97-3 WHICH ALSO SHARE THESE CNT ISOIATICN VALVES TEBCUGH A COM N 4-WAY VALVE.

Page 4 of 8 1

l ATTACH!ENT 4.1C (continued) I NUTIM PI'FimG T(PE C TEST FI:SULTS CDICAHM2C AS FOUND AS IIFT ASSIGED mrr VALVE CATE VALVE '"ALVE FEETPATION

10. MARK NO. TESTED IDK42 IDTR IDra 21 OUT (SG/D) (57/D) (SG/D) 70 1PS-101 X lC4-07-93 0.47 0.47 f 0.47 71 1RS-100 X 04-08-93 0.47 0.47 0.47 1El-197 X 04-04-93 1.65 1.65 87 1.65 1El-111 X 04-04-93 0.47 0.47 1FI-196 X 04-04-93 0.71 0.71 88 0.71 IFi-110 X 04-04-93 0.71 0.71 1AS-278 X 04-15-93 >2266.8 18.84 T/-1SV-100A X 04-15-93l 11.81 5.65 ,

IVS-> 5-3B X 90 04-08-93 23.03 23.03 23.03 IVS-D-5-3A X IVS-D-5-5B X 91 1VS-D-5-5A lX 04-04-93 7.04 7.04 7.04 1VS-D-5-6 X T/-1C/-150C X 04-01-93 13.18 13.18 l 1HY-102 X 04-01-93 12.71 12.71 92 34.38 T/-1CV-150D X 04-01-93 21.67 21.67 1HY-104 X 04-01-93 12.7 1 12.71

            'IV-1CV-150B          X   04-01-93     9.42        9.42 I

1El-101 X 04-01-93 9.42 9.42 93 18.84 T/-1CJ-150A X 04-01-93 9.42 9.42 1HY-103 X 04-01-93 9.42 9.42 701AL PEhTIPATION IDJ%E SHEET 5 (SC/D) 103.43 4 Page 5 of 8

ATTACHMDTT 4.1C (continued)

                                !C17IM REFFC T(PE C TEST P15(FTIS CDtfrAUDE!IT            AS EtX.HD     AS IET     ASSIG,*ED FUfr         VAD'E                      CATE       VAUT        VADT   F U E TP A H Off ro.        .m to.                     nsiw      IEAKAGE      IER7CE     IER7CE El     CUT                                                     '

(SG/D) (3 7/D) (S&/D) HC/-1C/-151 X l 04-13-93l 12.27 12.27 HC/-lC/-151-1 X 04-13-93 13.21 13.21 SCP/-1}E-102B1 X l 04-08-93 0.47 0.47 95-64 0.47 SOV-1HY-102B2f X 04-08-93 0.47 0.47 SCP/-UN-103B1 X 04-08-93 0.47 0.47 95-69 0.47 S7/-IRY-103B2 X 04-08-93 0.47 0.47 SCP/-lHY-104B1 X 04-08-93l 0.47 0.47 - SOV-lHY-104B2 X 04-09-93 0.47 0.47 l TI-lSS-104A1 X 04-16-93 0.47 0.47 W-1SS-104A2 X 04-16-93 0.47 0.47 l j W-1SS-103Al X 05-14-93 0.47 0.47 97-2 f 0.47 W-lSS-103A2 X 05-14-93 0.47 0.47 1PC-38 X 04-05-93 0.47 0.47 103 0.47 i 1PC-37 X 04-05-93 0.47 0.47 1PC-9 X 04-05-93 6.6 6.6 1PC-10 X 0.47 0.47 l04-05-93 l W-1SS-112A1 X 04-16-93 0.47 0.47 105-2 0.47 , W-1SS-112A2 X 04-16-93 0.47 0.47 M7/-1SI-842 X 04-01-93 0.47 0.47 [ 106 0.47 W-ISI-889 X 04-01-93 0.47 0.47 , J SCV-lHY-102A1 X 04-08-93 0.47 0.47 4 109-44 , 0.47 l SOV-1HY-102A2 X 04-08-93 0.47 0.47 i

      ' IUD.L POEIRATICH IFAF7GE SEEET 6                 (S7/D)                   24.04              !

1 i Page 6 of 8 l

i ATIAOFETT 4.lC (continued) fGmf FIRMT'G TYPE C TEST RESULIS CDffIADEDTI AS FU WD AS IIFT ASSIGED l POrr VALVE CATE VALVE VAIJ/E PD.EPAHON l to. .vARK 10. TESTED IIAKAGE IIAKAGE IIAKAGE r IN CUT (SG/D) (SCF/D) (SCF/D) j 3 SOV-lFi-103Al X f04-08-93 0.47 0.47 109-49 0.47 I SOV-LTI-103A2 X 04-08-93 0.47 0.47 SOV-lHY-104A1 X 04-08-93 0.47 0.47 109-52 0.47 SCV-LTI-104A2 X 04-08-93 0.47 0.47 i 1RC-277 X 04-13-93 0.47 0.47 i 110-1 0.47 , IRC-278 X 04-13-93 0.47 0.47 1 1VS-169 X 04-07-93 0.47 0.47 1VS-170 X 04-07-93 0.47 0.47 IVS-167 X l04-07-93 0.47 0.47 IVS-168 X 04-07-93 0.47 0.47 TUIAL PUEIRATIQi IIAKAGE SF m 7 (S7/D) 1.41 i , i IME 2 - THE ASSIGTED PUEIPATION IIAKAGE FOR 1EESE VALVES IS ADDED WIIH TEE ! PERSOt2EL AIRLOCK OVERAIL TYPE B IEAKAGE, AND !M DiCILTED Di "IEE TYPE C i IUTAL. P. A.L. = PERSQ2EL AIRIDCK I IUrAL POEIPATION IIAKAGE SHEET 1 (57/D) 85.03 ICIAL FUETRATION IZAKAGE SHEET 2 (SG/D) 173.97 ' IUIAL PDESATICN IEAKAGE SHEET 3 (SC/D) 85.74 TUIAL PDESATION IEAKAGE SHEET 4 (SG/D) 38.14 1UIAL PDESATICH IEAKAGE SHEET 5 (SC/D) 105.43 TUIAL PDEIPATICH IIAKAGE SHECT 6 (S7/D) 24.04

          'IUIAL PDEIRATION IZAKAGE SHEET 7                            (SG/D)       1.41
          'f0IAL CONIADEDIT Ti"PE C IIAKAGE - SLN OF SHEEIS 1 IFPU 7 (SG/D)      513.76     i Page 7 of 8 I

i

1 1 ATTAGPEIT 4.1C (continued) l NDTIH REFUEI.UG TYPE B AND C TIST RESULTS AS FOUND AS IIFT ASSIGiED miEmArrm cure tru u:E tEmcE mmArrm TESTED (S7/D) (SCF/D) LEAIGGE Electrical Penetratiors 03-28-93 27.3 23.7 23.7 l i Fuel Trarsfer Tube 05-20-93 13.03 8.13 8.13 Penetration #111 03-28-93 0.46 0.46 0.46 ! Penetration #112 03-28-93 3.91 3.91 3.91 ; Equiprient Hatch l Outer Flange 05-23-93 0.47 0.47 0.47 Equi;rJent Hatch Inner Flange C>5-24-93 0.48 0.47 0.47 ' l Personnel Airlock 05-24-93 35.88 53.48 53.48 ! Equi; rent Hatch Airlock 05-24-93 0.47 19.78 19.78 r i Tttal Type 'B' Leakage 110.4 SC/D Total Type 'C' Leakage 513.76 S C/D > Tctal Type 'B' and 'C' Isakage 624.16 57/D (Acceptance Critaria < 3,929.00 SC/D [0.6 La)) l l l l Page 8 of 8

l ATTAOMENT 4.1D i NIIIIM REFUELING IDCAL LEAKAGE PATE TEST REPAIRS Penetration No. 2 The "As-Found" leak test was perforned on April 27, 1993. The valve operator for IOV-10C-112B3 was Statically and Dynamically FOVATS Tested per Maintenance Work Request 13426. Following the completion of the Static MCrv%TS 7bst an "As-left" leak test was performed on May 7,1993, with a leakage of 1.64 SCF/D reasured. No adjustments were required to be made to the valve operator following the completion of the Dynamic MOVATS Test. Penetration No. 5

    'Ibe "As-Found" leak test was performed on April 27, 1993. The valve operator for MOV-1CC-112B2 was Statically ard Dynamically MOVATS Tested per Maintenance Work Roquest 13425.          Following the completion of the Static IOVATS Test an "As-Irft"    leak test was performed on May 2, 1993, with a leakage of 0.47 SCF/D measured.      No adjustments were required to be made to the valve operator following the completion of the Dynamic FOVATS Test.

Penetration No. 8 l The "As-Found" leak test was performed on March 30, 1993. As a preventative measure, the diaphragms were replaced for valves TV-1CC-107D1 and TV-10C-107D2 ' per Maintenance Work kequests 12662 and 12663 respectively. An "As-Left" leak l test was performed on May 14, 1993, with a leakage of 0.47 SCP/D measured for TV-1CC-107D1 and 0.57 SCF/D measured for TV-10C-107D2. Penetration No. 14 , The "As-Found" leak test was performed on April 3, 1993. During the ! perforrance of OST 1.1.16, valve 7V-1CC-110E2 would not remain open for the required 5 minutes after isolatirg the instrunent air to the valve operator. The diaphragm was replaced per Maintenance Work Request 20014. An "As-Isft" leak test was perforned on May 21, 1993, with a leakage of 0.47 SCF/D measured. I Penetration No. 17 , The "As-Fourd" leak test was perfomed on April 28, 1993. As a preventative measure, the diaphragms were replaced for valves TV-1CC-103B and TV-1CC-103B1 l per Maintenance Work Requests 12666 and 12648 respectively. An "As-Ictt" leak , test was performed on May 8, 1993, for TV-1CC-103B with a leakge of 8.49 SCF/D l measured and on May 9, 1993, for TV-1CC-103B1 with n leakage of 0.47 SCF/D ' t reasured. j b Page 1 of 7

 ,   7                                                                                               ;
                                                                                                   .1 l

ATIAQHD(f 4.1D (continued) NINIH REFUELING IOCAL LEAKT4E RATE TFSF REPAIR Penetration No. 18 7he "As-Found" leak test was performed on April 28, 1993. As a preventative measure, the diaphragms were replaced for valves TV-1CC-103C and TV-1CC-103C1 per Maintenance Work Requests 12650 and 12651 respectively. An "As-left" leak I test was performed on May 8, 1993, for TV-1CC-103C with a leakage. of 28.49 SCP/D reasured and on May 16, 1993, for IV-10C-103C1 with a leakage of v 35.45 SCF/D measured. I Penetration No. 24 i The "As-Found" leak test was performed on April 30, 1993. Due to excessive seat leakage, Maintenanot Work Request 19560 was initiated for valve 1RH-16. The stem nut was found to be loose causing the valve to leak by. 7he valve was dicmemc>mbled, cleaned, and rAA_Sc:ssmbled. Following the repair an "As-Inft" leak test was performed on May 3, 1993, with a leakage of 14.03 SCP/D measured. Penetration No. 25 The "As-Found" leak test was performed on March 30, 1993. Due to excessive , seat leakage Maintenance Work Request 18536 was initiated for valve i IV-1CC-105D1. The seats were determined to have the wrong taper causing the valve to leak by. The valve internals were rachined to the correct taper. Also as a preventative reasure, the diahpragms were replaced for valves TV-1CC-105D1 and IV-1CC-105D2 per Maintenance Work Requests 12655 and 12656 respectively. Following the repairs an "As-left" leak test was perfomed on May 4, 1993, with a leakage of 26.64 SCF/D measured for IV-1CC-105D1 and a ' leakage of 46.85 SCF/D neasured for TV-10C-105D2. Penetration No. 26

The "As-Found" leak test was performed on March 31, 1993. As a preventative measure, the diaphragms were replaced for valves TV-1CC-107El and TV-1CC-107E2 l per Maintenance Work Rcquests 12657 and 12665 respectively. An "As-Inft" leak i i test was perforned on April 17, 1993, with a leakge of 0.94 SCF/D neasured for ! TV-1CC-107El and 10.20 SCF/D neasured for TV-1CC-107E2. i i l l l 1 Page 2 of 7 1 l

l I ATTACHMEtif 4.1D (continued) l IGIIH REFUELDJG IDCAL IEAKAGE PATE TFST REPAIPS l l Penetration No. 27 i 7he "As-Found" leak test was performed on March 30, 1993. As a preventative measure, the diaphragms were replaced for valves TV-ICC-105El and TV-10C-105E2 per Maintenance Work Requests 12657 and 12658 respectively. An "As-Inft" leak l test was perforned on April 25, 1993, with a leakage of 33.90 SCP/D measured I for TV-1CC-105El and 0.57 SCF/D neasured for TV-10C-105E2. Penetration No. 28 The "As-Found" leak test was performed on April 26, 1993. As a preventative measure, the diaphragm was replaced for valve 7V-1G-200B per Maintenance Work PIquest 12649. An "As-Ieft" leak test was performed on May 4, 1993, for valve TV-1G-200B, which is tested in parallel with valves TV-1G-200A and TV-1 m-200C, but the penetration was unable to be pressurized. Further investigation with a stethoscope indicated that valve TV-1G-200C was possibly leaking by. Maintenance Work Roquest 19672 was written to repair valve TV-1G-200C. The actuator drive nut for TV-1G-200C was fourd to have unscrewed itself from the threads on the valve bonnet. The drive nut was tightened and the actuator adjusted. An "As-left" leak test was performed on May 6, 1993 but the penetration was still unable to be pressurized. Maintenance Work Requests 19686 and 19706 were written to inspect valves TV-1G-200B and TV-1G -200C. The valve plugs were removed and cleaned for both valves and the valves reassembled. Follcuing the repairs an "As-Left" leak test was performed on May 8, 1993, with a leakage of 0.47 SCP/D measured. The "As-Found" leak test was performed on April 26, 1993. Due to excessive . seat leakage Maintenance Work Request 19457 was initiated for valve , MOV-1G-142. The valve was found with a bent stem ard the plug in poor condition. The valve stem and plug were replaced. Following the repairs an "As-Icft" leak test was performed on May 19, 1993 with a leakage of 0.47 SCF/D measured. ! Penetration No. 32

The "As-Found" leak test was performed on April 30, 1993. During the performance of the leak test it was discovered that Check Valve 1FP-800 would t not close when fully opened from the weight of its weight arms. Maintenance Work Request 19580 was written to repair meck Valve 1FP-800. The shaft o-rings and bushing were replaced and all parts cleaned. Following the repair an "As-left" leak test was performed on May 14, 1993, with a leakage of 3.41 SCP/D reasured. l l l Page 3 of 7 l l 1 1 1

ATTAOMEtTT 4.1D (continued) NDTIH REFUELING IDCAL LEAhAGE PATE TESP REPAIRS i i Penetration No. 38

            'Ihe "As-Found" leak test was performed on April 17, 1993. Maintenance Work Request 3263 had previously been written for valve TV-1DA-100A due to excessive The valve appeared to be in good corxlition; however, the leakage suspected.

valve actuator spring was at the end of its adjustnent. The actuator spring was replaced during rcosc:nmbly. Followirq the repair an "As-Inft" leak test was performed on May 17, 1993, with a leakage of 0.47 SCP/D reasured. The "As-Found" leak test was perforned on April 17, 1993. Due to excessive leakage Maintenance Work Request 19218 was written to repair valve ! TV-1DA-100B. A tie wrap was found in the valve and the seat was damaged in two places. The valve was cleaned and the seat replaced. Following the repair an !

            "As-left"     leak test was perforned on May 5, 1993, with a leakage of 4.30 SCP/D measured.

Penetration No. 42 The "As-Fcund" leak test was performed on March 29, 1991. Due to excessive ! force rm[uired to close valve 1SA-14 Maintenance Work Request 911039 was ' written during the previous fuel cycle. The valve was replaced with a new valve. Following the replacement an "As-left" leak test was perforred on

May 3, 1993, with a leakage of 6.55 SCF/D measured.

i The "As-Found" leak test was performed on March 29, 1993. Due to excessive leakage Maintenance Work Request 18474 was written for Check Valve 1SA-15. The ; valve was disassembled, the internals cleaned and the disc and seat lapped. Following the repair an "As-left" leak test was performed on May 3, 1993, with a leakage of 21.52 SCF/D measured, j l Denetration No. 47 The "As-Found" leak test was perforned on April 30, 1993. Due to excessive j force required to close valve lIA-90 using the reach rod Maintenance Work Request 19578 was written. The valve packing was replaced. Following the repair an "As-Inft" leak test was perfomed on May 18, 1993, with a leakage of 2.35 SCF/D measured. : i b i l Page 4 of 7 4

ATTACH!ENT 4.1D (continued) NINIH REFUELING IDCAL LEAKAGE RATE 7T51 REPAIRS Penetration No. 49 The "As-Found" leak test was perforned on April 1, 1993. Due to excessive seat leakage measured during this and previous outages, Maintenance Work Request 12994 was written to replace check valve 1RC-68. The check valve was replaced with a new soft seat style valve. Follwing the replacement an "As-Inft" leak i test was perforned on May 3,1993, with a leakage of 13.55 SCF/D measured. ! Penetration No. 55-1 1 The "As-Fourd" leak test was perforred on April 15, 1993. Due to packing leakage Maintenance Work Request 9161 was written during the previous fuel cycle for valve TV-1SS-109A1. The valve packing was replaccd. Follwing the ! repair an "As-Left" leak test was performed on May 9, 1993, with a leakage of 0.47 SCF/D mea = W, for both TV-1SS-109Al and 7V-1SS-109A2. Penetration No. 56-2 The "As-Fourd" leak test was perforned on April 4, 1993. Due to a 10 CFR 20 ! Notice from the valve's manufacture, Maintenance Work Request 12500 was written i to replace the closing spring ard spirol pin with parts made frcan upgraded material. Follwirg the repair an "As-left" leak test was performed on : May 14, 1993, with a leakage of 0.47 SCF/D measured. Eenetration No. 56-3 i The "As-Fourd" leak test was performed on April 18, 1993. During the performance of the leak test, open indication was not obtained for valve TV-1SS-105A2. Maintenance Work Request 19219 was previously written to replace the valve limit switches and top hat. Follwing the replacement of the limit switches and top hat an "As-Inft" leak test was performed on May 14, 1993, with i a leakage of 0.47 SCF/D neasured for both TV-1SS-105A1 IV-1SS-105A2. Penetration No. 58 The "As-Found" leak test was performrxl on April 26, 1993. As a preventative measure, the diaphragms were replaced for valvcs 7V-1CC-103A and IV-1CC-103Al ! per Maintenance Work Requests 12667 and 12668 respectively. An "As-left" Icak test was performed on May 7, 1993, with a leakage of 4.98 SCF/D measured for TV-1CC-103A ard 3.42 SCF/D neasured for TV-1CC-103A1. i l Page 5 of 7 l l l l

_ 7 _. , 1 l ATIACHMHTT 4.1D (continued) NIIIIH REFUELIIG IOCAL IDEGE RATE TEST REPAIRS Penetration No. 63 The "As-Found" leak test was performed on April 2, 1993. 'Ihe valve operator for MOV-1QS-101B was Statically ITNATS Tested per Maintenance Work Request ' 10161. Follwing the completion of the Static MOVATS Test an "As-left" leak test was perfomed on May 18, 1993, with a leakage of 17.89 SCF/D neasurEd. , i The "As-Found" leak test was performed on April 2, 1993. As a preventative ; measure, the shaft o-rirgs for 10S-4 were replaced and lubricated per ; Maintenance Work Request 16364. Foll w ing the repair an "As-left" leak test I was perfomed on April 15, 1993, with a leakage of 0.47 SCP/D measured. 4 Penetration No. 64 ; ) The "As-Found" leak test was perfomed on April 2,1993. Due to a reduced l voltage concern, the rotor pinion and wom gears were replaced per Maintenance , Work Request 19187. Follwing the replacement of the gears a Static MOVATS l j Test was performed. An "As-Inft" leak test was perfomed on May 15, 1993, with

a leakage of 0.47 SCF/D measured.

4 i ! The "As-Found" leak test was perforned on April 2, 1993. During the i performance of the leak test it was discovered that Check "alve 1QS-3 would not ! close when fully opened from the weight of its weight ams. As a preventative ! measure, Maintenance Work Request 16363 was previously written to replace the j o-rings and lubricate the shaft of Check Valve 10S-3. The shaft o-rings were ; cleaned ard lubricated. Follwing the repair an "As-Left" leak test was perforned on April 15, 1993, with a leakage of 0.47 SCF/D measured. : Penetration No. 71 l L The "As-Found" leak test was perforned on April 6, 1993. As a preventative . measure, the shaft o-rings for Check Valve IRS-100 were replaced and lubricated [ per Maintenance Work Request 16365. Follwing the repair an "As-left" leak ! test was performed on April 8, 1993, with a leakage of 0.47 SCF/D neasured. ; I i i i l i i i I n Page 6 of 7

l l ATTAOiMDIT 4.1D l 18m1 REFUELI!G LOCAL LF1EAGE RATE TEST REPAIRS l Penetration IJo. 89 i a i The "As-Found" leak test was performed on April 5, 1993. Due to excessive ; ill leakage for Check Valve 1AS-278 Maintenance Work Request 18784 was wriiten. : Dirt and a gwwf substance was found on the valve seat. The valve seating surfaces were cleanod. An "As-Left" leak test was performM on April 15, 1993 l with a leakage of 18.84 SCP/D measured. Valve TV-1SV-100A was also retested i t since some of the "As-Found" leakage was contributed to packing leakage on ! . Check Valve 1AS-278. The "As-left" leak test was performed on April 15, 1993 j l with a leakage of 5.65 SCF/D reasured. ; Penetration IJo. 97-2 l The "As-Found" leak test was performed on April 16, 1991. Due to previously l identified packing leaks on TV--1SS-103Al and TV-1SS-103A2 Maintenance Work l Requests 18626 and 15571 were written. The packing was replaced on b dh valves

) and the "As-left" leak test was perforned on May 14, 1993, with a leakage of 0.47 SCF/D neasured for both valves. - i i , e 3' i i l I 1 : J s 4 4 4 I q i ! l 1 1 i i i i l a } 4 l ,' i ! Page 7 of 7 i d

      ,   -   = -_ -                -                         -

ATTAWMEtTf 4.1E EIGTIH AND ISTIH FUEL CYCLE IDCAL LEAKAGE RATE TEST DATA I. Eichth Fbel Cycle ILRT Data A. Type B Tests i

1. Airlock Total Volume Type B Tests

a. Personnel Airlock [PH-P-1] (5-22-90) 142.10 SCF/D !

Corrective Action (s) Outer door breech ring limit switch adjusted to permit additional travel in , the closed position.

b. Epipnent Hatch Airlock [PH-P-2] (5-23-90) - 12.82 SCF/D i

Corrective Action (s) - None

c. Perem l Airlock [PH-P-1] (11-13-90) 288.59 SCF/D Corrective Action (s) Outer door breech ring li2 nit switch ,

adjusted to pennit additional travel in , the closed position. :

d. npipment Hatch Airlock [PH-P-2] (11-13-90) - 13.04 SCF/D f Corrective Action (s) None i

t B. 'Iype C Tests

1. Penetration No. 28 [RV-1 G -203] (1-19-90) 0.48 SCF/D Corrective Action (s) Relief valve was suspected of leaking ;

by. 'Ihe relief valve was replaced with a new relief valve per Maintenance Work + Rcquest 90'5i38. , I i Page 1 of 3 1

ATTACHE 27f 4.1E (continued) EIGfni AND NIITIH FUEL CYCLE IDCAL IIAFAGE RATE TEST DATA II. Ninth Fbel Cycle IIRT Data A. Type B Tests

1. Airlock Total Volume Type 1 Tests I

a. Personnel Airlock [PH-P-1] (9-21-91) 90.77 SCF/D Corrective Action (s) The sight glass was replaced per ;

Maintenance Work Request 913762; due to a chip near the sealire surface. ' t

b. Quipnent Hatch Airlock [PH-P-2] (9-23-91) 42.62 SCP/D ,

Corrective Action (s) None i

c. Personnel Airlcck [PH-P-1] (3-3-92) 34.69 SCF/D i Corrective Action (s) None ;

i

d. Dguipment Hatch Airlock [PH-P-2] (3-4-92) 2.87 SCF/D I Corrective Action (s) None

e. Personnel Airlock [PH-P-1] (8-25-92) - 41.91 SCF/D [

Corrective Action (s) None ( l

f. Quipnent Hatch Airlock [PH-P-2] (8-26-92) 5.14 SCF/D

Corrective Action (s) None L

g. Quipment Hatch (10-24-92) 0.47 SCF/D ;

Corrective Action (s) None

h. Equipnent Hatch Airlock [PH-P-2] (10-25-92) 0.47 SCF/D ,

i Corrective Action (s) None

i. Quipnent Hatch Inner Flange (10-25-92) 0.48 SCF/D 1 Corrective Action (s) None 1

j. Personnel Airlock [PH-P-1] (2-17-93) 35.88 SCF/D Corrective Action (s) None i

Page 2 of 3

ATIAOFJN1' 4.1E (continued) , EIGIIH AND NINIH IUEL CYCLE IDCAL ITAKAGE RATE TEST DATA > B. Type C Tests j

1. Penetration No. 28 [RV-1m-203] (11-19-91) 0.47 SCF/D Cbrrective Action (s) Relief valve [RV-1G-203] was suspected of leaking by. The relief valve was +

replaced with a new relief valve per i Maintenance Work Request 911343.

2. Penetration No.105-2 ['IV-1SS-112A2] (2-28-92) 0.47 SCF/D Corrective Action (s) The valve was repacked per Maintenance l Work Request 5781.

3. Penetration No. 55-1 [TV-1SS-109A2] (2-29-92) 0.47 SCF/D Corrective Action (s) 'Ihe valve was repacked per Maintenance ,

Work Request 7257 and the valve actuator was repaired per Maintenance t Work Request 5184.

4. Penetration No. 56-2 [TV-ISS-102A1] (10-24-92) 0.47 SCP/D Corrective Action (s) 'Ibe actuator spring and spirul pin were replaced per Valcor's 10CFR21 Notice (Maintenance Work Request 12499).

E a IKTTE: BVPS #1 administratively limits Type B leakage of each airlock to

5% La (327 SCF/D). Total Type B ard C leakage (excluding airlocks) is administratively limited to 50% La to account for airlock retests, l

4

Page 3 of 3 l l l

.}}

ML20056F750

Text

SUMMARY

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