ML20207K942
| ML20207K942 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 12/23/1986 |
| From: | Mcnutt G, Russell J TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20207K654 | List: |
| References | |
| 232.9(B), 232.9(B)-R01, 232.9(B)-R1, NUDOCS 8701090567 | |
| Download: ML20207K942 (4) | |
Text
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TVA EMPLOYEE CONCERNS REPORT NUMBER: 232.9(B)
SPECIAL PROGRAM
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REPORT TYPE:
SEQUOYAH ELEMENT REVISION NUMBER: 1 NON-RESTART JUSTIFICATION SUMMRY TITLE:
FREEZING 0F CONDENSATE LINES PAGE 1 0F 2 REASON FOR REVISION:
To incorporate TVA consents on Rev. O.
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PREPARED BY:
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- SRP Secretary's algnature denotes SRP concurrene are in files.
APPROVED BY-('
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N/A ECSP'
'ER DATE MANAGER OF NUCLEAR POWER DATE CONCURRENCE (FINALREPORTONLY) 11/08/86 - 04520 04520 - Page 1
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SEQUOYAH NUCLEAR PLANT ENGINEERING RELATED EMPLOYEE CONCERNS
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SPECIAL PROGRAM NON-RESTART JUSTIFICATION
SUMMARY
SUBCATEGORY / ELEMENT 232.9(B)
The concern addresses a design improvement in a non-safety system that may be required to ensure more efficient operation or to eliminate a potential maintenance problem.
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ATTACHMENT:
List of Issues for Mechanical ELEMENT NO.
232.9(B)
Date:
11/08/86 04520 - Page 2
7 h
P LIST OF MECHANICAL ISSUES SON RESTART - 40 ELEE NT NUMBER 232.9 BY:
D. L. Damon Date: 11/08/86 ELEMENT WHERE RESPON-CONCERN NUMBER (5)
ISSUES ADDRESSED SIBLE GENERAL APPROACH / METHODOLOGY FOR ELEMENT REPORT 13-85-772-005 1.
Proximity of condensate and glycol DLD 1.
Identify the location of the Air Handling Units Condensate line and glycol line lines in Reactor Building Air in question.
running next to each other is Handling Units may cause icing, cet a good design. Air clogging and reduced efficiency.
2.
Walkdown the piping arrangement of the handlers in.141y/ August '84 condensate and refrigerant lines and confirm were filled witn ice, causing installation per design drawings.
Icing of drains and clogging.
Location: Ice Condensers (32 3.
Review SON Maintenance and Operation Records to air handlers) located at the determine existence and frequency of problem.
Head 2 circular stairwJy up from elev. 755'-0* in Reactor 4
Review ECNs and DCRs and related documentation BJilding both units. CI has on the relevant design drawings to determine if no further information.
any corrective actions are in progress or Nuclear power concern planned.
5.
Establish validity of concern and present dispositions of the issue.
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REFERENCE
- ECPSI20J-ECPSI21C TENNESSEE VALLEY AUTHORITY '
PAGE 131 FREGUENCY
- L.EGUEST OFFICE OF NUCLEAR POWER RUN TIME - 12:57:19 O ONP - 1555 - RWI EMPLOYEE CONCERN PROGRAM SYSTEM (ECPS)
RUN DATE - 12/02/86 LIST OF EMPLOYEE CONCERN INFORMATION CATEGORY: EN DES PROCESS & OUTPUT SUBCATEGORY: 23209 FREEZING OF CONDENSATE LINES O
S GENERIC KEYWORD A H
APPL QTC/NSRS P
KEYNORD B CONCERN SUB R PLT BBSW INVESTIGATION S
CONCERN KEYNORD C NUM3ER CAT CAT D LOC FL98 REPORT R
DESCRIPTION KEYHORD D O
IQ 772-005 EN 23209 N NBN NNYY IN-85-772-005 NO CONDENSATE LINE AND GLYCOL LINE RUNN NONCONFORMANCE T50121 REPORT ING NEXT TO EACH OTHER IS NOT A GOOD DESIGN REVIEN DESIGN. AIR NANDLERS IN JULY /AUGUS PIPING O
T '84 NERE FILLED WITH ICE, CAUSING PIPE ICING OF DRAINS AND CLOGGING. LOCAT ION: ICE CONDENSERS (32 AIR HANDLERS 3 LOCATED AT THE HEAD 2 CIRCULAR STA O
IRMAY UP FROM ELEV. 755'-0" IN REACT OR BUILDING BOTH UNITS. CI HAS NO F URTHER INFORMATION. NUC POWER CONCE O
I CONCERNS FOR CATEGORY EN SUBCATEGORY 23209 O
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