ML20082N974

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Reactor Containment Bldg Integrated Leak Rate Test,Types B & C
ML20082N974
Person / Time
Site: Beaver Valley
Issue date: 09/30/1983
From:
DUQUESNE LIGHT CO.
To:
Shared Package
ML20082N971 List:
References
NUDOCS 8312080040
Download: ML20082N974 (19)
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Text

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DUQUESNE. LIGHT COMPANY Beavear Valley Unit No. 1 REACTOR CONTAINMENT BUILDING INTEGRATED LEAK RATE TEST September, 1983 TYPE 'B' AND 'C' 8312080040 831122 PDR ADOCK 05000334 P PDR

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.DUQUESNE LIGHT ~ COMPANY Beaver Valley Power Station TABLE OF CONTENTS Page No.

Introduction 1 A. Type 'B' Test,Results 2 B. Type 'C' -

Test Results 8

INTRODUCTION - Centsinment Integrated Leiktga Rete Test, 1983 This report contains a discussion of the Beaver Valley Power Station Unit No. 1 Type 'B' and Type 'C' Local Leak Rate Testing performed during the 1983 Refueling Outage. It has been prepared in accordance with the requirements of 10 CFR 50, Appendix J, Section V, Paragraph B.3. Part A summarizes the results of the Type 'B' Testing, and Part B summarizes the results of the Type 'C' Testing. It should be noted that Type 'A' Leak Testfng was not performed during the 1983 Refueling Outage. Type 'A' Testing was last successfully completed during the 1982 Refueling Outage.

The combined leakage rate for all penetrations and valves subject to Type 'B' and 'C' Tests must be less than 60 percent of La (the maximum allowable leakage rate of Containment) in order to meet plant Technical Specifications. _La is 0.10 percent by weight of the Containment air per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at Pa (53 psia).

La equals 0.10 percent by weight of Containment air volume (1,800,000 Ft') at 53 psia (0.001 x 1,800,000 x 53/14.7) = 6489.80 SCF/D; 60 percent of La equals 3893.88 SCF/D.

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A. TYPE 'B' TEST RESULTS Local Leakage Rate Testing for the Containment Electrical Penetrations (Type . ':B' Testing) was performed during the months of August and September, 1983. The results were found to be acceptable.

The Local Leakage Rate Testing for the Containment Electrical Penetra-tions measures the leakage through the penetration 0-ring seals on the bolt-on flanges and the leakage from the penetration canister. A summary sheet is included listing the electrical penetration leakage rates.

Other Type 'B' Leakage Rate Tests measure the leakage through the Per-sonnel Airlock, the Emergency Personnel Airlock Flanges, the Fuel Transfer

' rube, and Penetrations #111 and #112. The results of these tests are also-included on the summary for reference. '

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-A. TYPE 'B' TEST RESULTS (C:ntinusd)

Leakage Leakage Penetration 0-Ring Seal / Canister Penetration 0-Ring Seal / Canis *er Number (SCCM) Number (SCCM)

SI-B 2.0 / 0.0 5-B 2.0 / 2.0

@l-D 2.0 / 0.0 5-C 2.0 / 3.55 1-F 2.0/2.0* / N/A 5-D 2.0 / 2.0 Gt!-B 2.0 / 0.0 5-E- 2.0 / 2.0 GG-D 2.0 /' O.0 5-F 2.0 / 2.0 92-F 2.0 / 0.0 5-G 2.0 / 31.9 3-A 2.0 / 2.0 6-A 2.0 / 3.3 3-B 2.0 / 2.9 6-B 2.0/2.0* / N/A 3-C 2.0 / 22.0 6-C 2.0 / 2.0 3-D 2.0 / 2.0 6-D 2.0 / 2.0 3-E 2.0 / 2.0 6-E 2.0 / 3.0 3-F 2.0 / 2.0 6-F 2.0 / 2.0 3-G 2.0/2.0* / N/A 6-G 2.0 / 2.0 4.A 2.0 / 3.4 7-A 2.0/2.0* / N/A 4-B 2.0 / 2.0 7-B 2.0 / 2.0 4-C 2.0 / 66.0 7-C 2.0 / 3.4 4-D 2.0 / 47.5 7-D 2.0 /. 2.0 4-E 2.0 / 2.0 7-E 2.0 / 2.0 4-F 2.0 / 2.4 7-F 2.0 / 2.0 4-G 2.0 / 4.5 7-G 2.0/2.0* / N/A 5-A 2.0 -/ 4.95 8-A 2.0 / 2.15 Totals Page 3 4.60 / 165.65 50.8 / 79.98

  • Inside/Outside of Containment i 9 Pressure Decay Test Used to Determine Leak Rate Page 3

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'B' TEST RESULTS'(C ntinuad)

A. TYPE Leakage Leakage Penetration 0-Ring Seal / Canister Penetration 0-Ring Seal / Canister Number (SCCM) Number (SCCM) l l

8-B 2.0 / 2.0 11-B 2.0 / 2.0 1 8-C 2.0 / 2.0 11-C 2.0/2.0* / N/A 8-D 2.0 / 2.0 11-D 2.0 / 2.0 8-E 2.0 / 2.0 11-E - 2.0 / 13.6

'8-F 2.0/2.0*- / N/A 11-F 2.0 / 2.0 t

8-G 2.0 / 2.0 11-G 2.0 / 2.0

'9-A 2.0 / 2.0 12-A 2.0 / 2.0 9-B. -2. 0 / 2.0 11-B 2.0 / 20.1 9-C 2.0 / 3.6 12-C 2.0 / 2.0 9-D 2.0 / '2 . 0 12-D 2.0 / 14.3 9-E 2.0 / 2.0 12-E 2.0 / 2.0 9-F 2.0 / 2.0 12-F 2.0 / 2.0 9-G 2.0 / 9.15 .12-G 2.0 / 2.0 10-A 2.0 / 12.2 13-A 2.0/2.0* / N/A 10-B 2.0 / 32.6 13-B 2.0/2.0* / N/A 10-0 2.0 / 14.5 13-C 2.0 / 2.0 10-D 2.0 / 2.0 13-D 2.0/2.0* / N/A 10-E 2.0 / 2.0 13-E 2.0 / 5.98 10-F 2.0 / 2.0 13-F 2.0 / 2.0' 10-G 2.0 / 39. 8 13-G 2.0 / 2.0 11-A 2.0 / 3.8 14-A 2.0 / 2.0 44.0 / 141.65 50.0 / 79.98

  • Inside/Outside of Containment

@ Pressure Decay Test Used to Determine Leak Rate Page 4

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A. TYPE 'B' TEST RESULTS (Continued)

Leakage Leakage Penetration 0-Ring Ses1/ Canister Penetration 0-Ring Seal / Canister Number (SCCM) Number (SCCM) 14-B 2.0 / 2.0 16-A 2.0 / 2.0 14-C 2.0 / 2.0 16-B 2.0 / 2.0 14-D 2.0 / 2.0 16-C 2.0 / 2.0 14-E 2.0 / 2.0 16-D 2.0 / 2.0 14-F 2.0 / 2.0 16-E 2.0 / 2.0 14-G 2.0 / 28.5 16-F 2.0 / 2.0 15-A 2.0 / 2.0 16-G 2.0/2.0* / N/A 15-B 2.0 / 2.0 (hl7-B 2.0 / 2.0 15-C 2.0 / 2.0 17-D 2.0 / N/A 15-D 2.0 / 2.0 17-F 2.5/2.0* / N/A 15-E 2.0 / 2.0 (318-B 2.0 / 2.0 15-F 2.0 / 2.0 (318-D 2.0 / 2.0 15-c 2.0 / 2.0 18-F 2.0/2.0* / N/A 111 2.0 /  ?.0 p [* 26.0 / 52.5 34.5 / 20.0 1

  • Inside/Outside of Containment

@ Pressure Decay Test Used to Determine Leak Rate Page 5 l

.: 6-A. TYPE 'B' TEST RESULTJ (Continuid)

Leakage i Totals 0-Ring Seal / Canister I (SCCM) t Page 3 94.0 ./ 236.95 e

Page 4 94.0 / 221.63 Page 5 60.5 / 72.5 Total b'8

  • C 248.5 / 531.08 Total Leakage 12.637 / 27.04 (SCF/D).

Electrical Penetrations (8/21/83) 39 680 SCF/D Personnel Airlock (9/17/83) 119.3 SCF/D Equipment Hatch Outer Flange (9/13/83) C.459 SCF/D Equipment Hatch Inner Flange (9/13/83) 0.'+71 SCF/D Emergency Personnel airlock (9/15/83) 89.560 SCF/D Fuel Transfer Tube (9/12/83) 0.0 SCF/D Penetration #111 (7/15/83) 0.462 SCF/D Penetration #112 (7/15/83) 0.462 SCF/D TOTAL Type 'B' Leakage 250.894 SCF/D Page 6

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ - . _ I

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'N)g2000.0 SCCM 2.0 SCCM 18-F 0-Ring 837367 >2000.0 SCCM 2.0 SCCM In the cour,se of repairing these penetrations, 17-F and 18-F were determined to be missing 0-Rings. (See LER 83-23-OSC for further in-formation.) Penetration 3-C could not be repaired following the normal torquing procedare. After pressurizing the canister with freon, the leak was traced to a wire bundle gasket using a freon detector. This wire bundle gasket was nealed with epoxy per EM 60800. The two remaining penetrations, 7-G and 12-A, were repaired using the normal torquing pro-cedure.

Page 7

4 6-B. ' TYPE 'C' TEST RESULTS .

lThe purpose of Type 'C' Testing is to demonstrate the integrity of Containment Isolation-Valves in accordance with Appendix J of the Title'10 Code of Federal Regulations Part 50 and BVPS Technical Speci-fication 3.6.1.2.

A complete series of Type 'C' Tests together with the appropriate TypeB'; Tests were performed during the period of June 14, 1983, through September 17, 1983. The -results of these tests met the applicable acceptance criteria and are reviewed on the accompanying tables.

It should be noted that VS-153 (Containment Airlock Flow Control. Valve).

was Type 'C' Tested during the 1983 Refueling Outage. Because the inlet piping was plugged during the 1982 Refueling Outage, we feel that there is no longer a need to continue Type 'C' Testing this valve. If for some reason the plug is removed from the inlet piping of valve VS-153 and it becomes.

a potential leakage path, we will then put the valve back in our Type 'C' Testing program.

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, 4, Typ2 C Tsst R aults 1983 Perform:nca

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"As Found" "As Left"'

Pene- Valve Valve Penetration tration Valve Date Leakage Leakage Leakage Number Tested Tested (SCF/D) (SCF/D) (SCF/D) y MOV-CC-ll2A2 8-1-83 0.464 0.464 CCR-247 95.773 95.773 95.773 2

MOV-CC-112B3 7-19-83

  • 14.841 CCR-252 78.066 78.066 78.066 4

MOV-CC-112A3 8-11-83 2.832 2.832 CCR-251 169.012 169.012 169.012 MOV-CC-112B2 7-8-83 0.458 0.458 5

CCR-248 15.570 15.570 15.570 8

TV-CC-107D1 6-23-83 1.743 1.743 TV-CC-107D2 1.781 1.781 1.781 TV-CC-111D1 6-23-83 0.457 0.457 9

TV-CC-111D2 3.608 3.608 3.608 TV-CC-110D 6-21-83 0.460 0.460 11 TV-CC-110F2 ,

TV-CC-110F1 1671.231 0.520 0.520 FP-827 6-24-83 3.656 3.656 1

TV-FP-107 0.457- 0.457 3.656 l

TV-CC-110E3 6-28-83
  • 0.965 14 l TV-CC-110E2 4.599 4.599 4.599 TV-CC-111A2 7-5-83 2.851 2.851 16 TV-CC-lllAl 6.754 6.754 6.754 TV-CC-103B1 7-6-83 0.460 0.460 17 TV-CC-103B 15.628 15.628 15.628 TV-CC-103C1 7-23-83 32.215 32.215 18 TV-CC-103C 198.306 198.306 198.306 l CH-369 + 9-10-83' 835.615 78.258 19 MOV-CH-378 MOV-CH-381 0.464 0.464 78.258 SI-42 6-28-83 0.459 0.459 20 SI-41 0.463 0.463 0.463 Page 9 Total 671.994
  • Could Not Pressurize (See LER 83-23-03L)

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  • Typ2 C Test R2aults 1983 Parformanca "As Found" "As Left" Pene- Valve Valve Penetration tration Valve Date Leakage Leakage Leakage Number Tested Tested (SCF/D) (SCF/D) (SCF/D)

RH-14 + RH-16 7-13-83 5.056 5.056 24 0.557 0.557 5.056 RH-15 TV-CC-105D1 6-22-83 87.142 87.142 25 41.187 41.187 87.142 TV-CC-105D2 TV-CC-107El 6-23-83 0.457 0.457 26 0.555 0.555 0.555 TV-CC-107E2 TV-CC'-105El 5-22-83 27.060 27.060 TV-CC-105E2 0.557 0.557 27.060 TV-CH-200A,B,C 7-16-83 16.078 16.078 MOV-CH-142 +

28

  • 8.026 RV-CH-203 TV-CH-204 68.987 68.987 68.987 TV-DG-108A 7-9-83 0.462 0.462 29 1.386 1.386 1.386 TV-DG-108B FP-804 6-24-83 0.458 0.458

! 31 0.687 0.687 0.687 l TV-FP-105 FP-800 6-24-83 0.823 0.823 32 1.738 1.738 1.738 TV-FP-106 TV-DA-100A 8'-4-83 74.417 74.488 38 0.558 0.558 74.488-TV-DA-1003 SA-14 8-24-83 389.954 134.302 42 4.631 134.302 SA-15 4.631 TV-CV-102 9-9-83 920.677 0.462 I

k3 161.119 161.871 161.871

! TV-CV-102-1 TV-CV-101A 6-15-83 92.496 92.498 f g 76.311 92.498

TV-CV-101B 76.311 l

! RC-72 6-28-83 54.835 54.835 45 27.854 1.113 54.835 l TV-RC-519 IA-90 7-11-83 8.812 8.812 47 22.262 22.262 22.262 1A-91 Page 10 Total 732'.867

  • Could Not Pressurize (See LER 83-23-03L)

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Typ2 C Tact Rnaulta 1983 Performanca "As Found"~ "As Left"~

Pene- Valve Valve Penetration

'* tration Valve Date Leakage Leakage Leakage Number ' Tested Tested (SCF/D) (SCF/D). (SCF/D)

TV-DG-109Al 7-6-83 2.811 2.811

48 0.461 0.461 2.811 TV-DG-109A2 RC-68 7-5-83 29.028 29.028.

49 3.271 3.271 29.028 TV-RC-101 TV-SI-101-1 7-6-83 16.371 16.371 53 TV-SI-101-2 16.371 16.371 16.371 TV-SS-109Al 6-18-83 0.462 0.462 55-1 TV-SS-109A2 0.462 0.462 0.462 55-2 57-1 TV-LM-100A1 6- 15-83 0.461 0.461 57-2 TV-LM-100A2 0.461 0.461 0.461

'97-3 TV-SS-111A1 .8-2-83 3.157 -0.464 55-4 TV-SS-111A2 0.462 0.462 0.464

. TV-SS-100A1 6-18-83 0.462 0.462

'I TV-SS-100A2 1.571 1.571 1.571 TV-SS-102A1 6-20-83 0.462 0.462 56-2 0.462 0.462 0.462 TV-SS-102A2 TV-SS-105A1 6-22-83 2.481 2.481 56-3 TV-SS-105A2 24.812 24.812 24.812 .

CV-35 6-15-83 0.459 0.459 57-3 TV-LM-101A 3.216 3.216 3.216 CV-36 6-15-83 0.459 0.459 57-4 TV-LM-101B 2.757 2.757 2.757 TV-CC-103A 9-4-83 6.151 6. 151 58 TV-CC-103Al 7.372 7.372 7.372 QS-4 6-28-83 382.'081 382.081 63 139.269 184.135 382.081 MOV-QS-101B QS-3 6-28-83 138.102 138.102 64 278.538 2.343 138.102 MOV-QS-101A 609.970 Page 11 Total Page 11

Typ3 C Test Reculta , 1983 Parformanca "As Found" "As Left" Pene- Valve Valve Penetration ,

  • tration Valve Date Leakage Leakage . Leakage Number Tested Tested (SCF/D) (SCF/D) (SCF/D) 70 RS-101 6-27-83 1.836 1.836 1.836 4 71 RS-100 6-27-83 0.437 0.475 0.457 HY-111 6-16-83 13.357 13.337 87 HY-120 2.392 2.392 13.337 HY-110 6-16-83 0.459 0.459 88 HY-119 4.040 4.040 4.040 AS-278 6-18-83 27.595 27.595 89 TV-SV-100A 0.460 0.460 27.595 VS-D-5-3A + 7-10-83 90 24.881 24.881 24.881 VS-D-5-3B VS-D-5-5A 6-25-83 ,

91 VS-D-5-5B + '

VS-D-5-6

  • 0.462 0.4t2 HY-102 + 6-15-83 TV-CV-150C 0.462 0.462 92 HY-104 +

TV-CV-150D 9.250 9.250 9.250 HY-101 + 6-15-83 TV-CV-150B 0.462 0.462 93 HY-103 + .

TV-CV-150A 0.832 0'.832 0.832 HCV-CV-151 6-21-83 15.637 15.637 HCV-CV-151-1 34.493 34.493 34.493 SOV-HY-102B1 6-14-83 0.456 0.456

' ~0 0.456 SOV-HY-102B2 0.456 0.456 SOV-HY-103B1 6-14-83 0.456 0.456 95-69 0.456 0.456 0.456' SOV-HY-103B2 SOV-HY-104B1 6-14-83 0.456 0.456 95-72 SOV-HY-104B2 0.456 0.456 0.456 TV-SS-104A1 6-22-83 0.459 0.459 97-1 TV-SS-104A2 0.459 0.459 0.459 Page 12 Total 119.010

  • Could Not Pressurize (See LER 83-23-03L)

Page 12

'U Typa C Tcat Rssults 1983 Parformanca "As Found" "As Left" Pene- Valve Valve Penetration tration Valve Date Leakage Leakage Leakage Number Tested Tested (SCF/D) (SCF/D) (SCF/D)

TV-SS-103Al 6-22-83 0.459 0.459 9 -2 TV-SS-103A2 0.459 0.459 0.459 C-37 7-12-83 1.439 1.439 .

103 PC-38 51.065 51.065 51.065 PC-9 7-13-83 0.464 0.464 104 PC-10 12.534 12.534 12.534 TV-SS-ll2Al 6-18-83 0.462 0.462 105-2 0.462 0.462 0.462 TV-SS-112A2 MOV-SI-842 6-25-83 0.458 0.458 106 0.458 TV-SI-889 0.458 458 SOV-HY-102A1 6-14-83 0.456 0.456 109-44 0.456 0.456 0.456 SOV-HY-102A2 SOV-HY-103Al 6-14-83 0.456 0.456 109 0.456 0.456 0.456 l

SOV-HY-103A2 S0V-HY-104A1 6-14-83 0.456 0.456 109-52 SOV-HY-104A2 0.456 0.456 0.456 RC-277 6-15-83 0.461 0.461 110-1 0.461 0.461 0.461 RC-278 iCamt. .

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Valve VS-153 7-15-83

  • 7.414 7.414 l

Page 13 Total 74.221 l

  • Could Not Pressurize TOTAL, PAGE 9 671.994 SCF/D TOTAL, PAGE 10 732.867 SCF/D TOTAL, PAGE 11 609.970 SCF/D

! TOTAL, PAGE 12 119.010 SCF/D TOTAL, PAGE ' 13 74.221 SCF/D TOTAL TYPE C LEAKAGE 2208.062 SCF/D i 1983 PERFORMANCE i

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- - - - - - . - - . ~ - - - __ ___ _ - . ,_ , , . , . - . . . , , . , _ , , _ _

.' . . 4 Typ2 C' Test Results (Ccntinutd) 1983 Perform nce Total Leak Rate Total Type-B Tests 250.894 SCF/D Total Type C Tests 2208.062 SCF/D

. TOTAL Local Leakage Rate Tests 2458.956 SCF/D Acceptance Criteria: Total Leak Rate (Type 'B' and 'C'). <3893.88 SCF/D 4

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y' ; 4 Typ2 'C' Tsat Rstults (Ccntinued) 1983 Performance CORRECTIVE ACTIONS

SUMMARY

l Penetration #2 The initial-leak test was performed July 8, 1983. Valve [MOV-CC-112B3]

would not hold the applied pressure. Maintenance Work Request MWR 336348

~

was-initiated and the motor operation limit switch setpoint adjusted.

The retest was performed July 19, 1983, with a leakage of 14.841 SCF/D.

-Penetration Eli The initial leak test was performed June 20, 1983. Valve [TV-CC-110Fl]

leaked at 1671.231 SCF/D. Maintenance Work Request MWR 837010 was initiated and the valve positioner was reset. The retest was performed June 21,-1983, with a leakage of 0.520 SCF/D.

Penetration #14

-The initial leak test was performed June 21, 1983. Valve [TV-CC-110E3]

would not hold the applied pressure. Maintenance Work Request MWR 837011 was initiated and the seat and plug replaced. The retest was performed June 20, 1983, with a leakage of 0.965 SCF/D.

Penetration #19 The initial leak test was performed August- 18, 1983. Valve [MOV-CH-378]

leaked at 835.615 SCF/D. Maintenance Work Request MWR 837543 was initiated and the bonnet, bonnet gasket, packing, and wedges replaced. The retest was performed September 10, 1983, with a leakage of 78.258 SCF/D.

Penetration #28 The initial leak test was performed July 7, 1983. Valve [MOV-CH-142] would not hold the applied pressure. Maintenance Work Request MWR 837508 was initiated and the torque switch changed and the Limitorque Modutronic adjusted. The retest was performed July 16, 1983, with a leakage of 8.026 SCF/D.

Penetration #38 The initial leak test was performed August 3, 1983. Valve [TV-DA-100A]

leaked at 74.417 SCF/D. Maintenance Work Request MWR 830493 was initiated to repair a limit switch failure. The retest was performed August 4, 1983, with a leakage of 74.488 SCF/D.

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Typs 'C' Tast Rasults,(Centinutd) . 1983 Performance

' CORRECTIVE ACTIONS

SUMMARY

. Penetration #42

. The initial leak test was performed July 14, 1983. Valve [SA-14] leaked at 389.954 SCF/D. Maintenance Work Request MWR 837512 was initiated and

-the plug was cleaned. The retest was performed August 24, 1983, with a leakage of 134.302 SCF/D.

Penetration #43-The initial leak test was performed June 15, 1983. Valve [TV-CV-102]

leaked at 920.677 SCF/D. The valve was removed and reinstalled in the opposite direction under Design Change Package DCP 320. The retest was performed September 9, 1983, with a leakage of 0.462 SCF/D.

. Penetration #45 The initial leak test was performed June 24, 1983. Valve [TV-RC-519]

leaked at 27.854 SCF/D. Maintenance Work Request MWR 831185 was initiated to repair an air regulator failure. The retest was performed June 28, 1983, with a leakage of 1.113 SCF/D.

Penetration #55 The initial leak test was performed June 18, 1983. Valve [TV-SS-111A1]

leaked at-3.157 SCF/D.~. Maintenance Work Request MWR 830495 was initiated to repair a limit switch failure. The retest was performed August 2, 1983, with a leakage of 0.464 SCF/D.

Penetration #63

The initial leak test was performed June'17, 1983. Valve [MOV-QS-101B]
leaked at 139.269 SCF/D. Maintenance Work Request MWR 830643 was initiated to change the bonnet gasket and repack the valve. The retest was performed June 28, 1983, with a leakage of 184.135 SCF/D.

I Penetration #64 The initial leak test was performed June 18, 1983. Valve [MOV-QS-101A]

i leaked at 278.538 SCF/D. Maintenance Work Request MWR 836586 was initiated to change the bonnet gasket, to change the valve, and to adjust the limits.

The retest was performed June 28, 1983, with a leakage of 2.343 SCF/D.

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Type 'C' Test Results (Continued) 1983 Performance CORRECTIVE ACTIONS

SUMMARY

Penetration #91 The initial leak test was performed June 16, 1983. Valve [VS-D-5-5A] would not hold the applied pressure. Maintenance Work Request MWR 837014 was initiated and the valve was cleaned and limits adjusted. The retest was performed June 25, 1983, with a leakage of 0.462 SCF/D.

Containment Side Isolation Valve The initial leak test was performed July 11, 1983. Valve [VS-153] would not hold the applied pressure. Maintenance Work Request MWR 837511 was initiated and the valve was replaced. The retest was performed July 15, 1983, with a leakage of 7.414 SCF/D.

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