ML20092M549
| ML20092M549 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 06/20/1984 |
| From: | Dixon O SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| SPR-84-008, SPR-84-8, NUDOCS 8407020293 | |
| Download: ML20092M549 (2) | |
Text
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SOUTH CAROLINA ELECTRIC & GAS COMPANY POST OFFICE 764 COWM A. S CAROUNA 29218 p jMN
- o. w. oixon. ;.
uve$*.*d"o',*.'..'r"[o=S June 20, 1984 Mr. James P.'O'Reilly Regional Administrator U.S.-Nuclear Regulatory Commissior.
Suite 2900 i
101 Marietta Street, NW Atlanta, GA 30323
SUBJECT:
Virgil C. Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 Special Report (SPR 84-008) i
Dear-Sir:
Please find attachei a Special Report for the Virgil C.
Summer Nuclear Station.
"his Report is required by Technical Specification 6.9.2 as a result of entry into Action Statement (a)
- of Technical Specification 3.7.10, " Fire Rated Assemblies," on May 22, 1984.
Should there be any questions, please call us at your convenience.
O V
tuly: your s,
J F~'
bW lD o, Jr.
-LEK:OWO/dwf Attachment-
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V. C.
Summer K.
E. Nodland T.
C. Nichols, Jr./O. W. Dixon, Jr.
R. A.
Stough E.
H. Crews, Jr.
G.
Percival E.
C.. Roberts C.
W.
Hehl W. A. Williams, Jr.
J.
B.
Knotts, Jr.
D. A.
Nauman.
' Group Managers Document Management Branch
-0.
S.. Bradham-INPO Records Center C.
A.' Price AN3 Library D. A. Lavigne NPC?
r J. F. Heilman File.
C.
L. Ligon (NSRC) t h
(., ECIAL COM l
8407020293 840620
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ik. James P.
O'Reilly SPR 84-008 Page Two June 20, 1984 I
i EVENT DESCRIPTION'AND CAUSE OF EVENT oOn May 22,-1984,.e.t 1645. hours,-fire wall penetration seal #1707 in Control Building Room CB63-04 was declared. INOPERABLE when the top layer of-the five (5) layer Kaowool wrap protecting the penetraticn was determined to be degraded.
Control Building Room CB63-04 has a fire loading of 182,000 BTU /FT2 and is protected ewith fire detection and fire suppression equipment, which were verified OPERABLE.
Roving one (1) hour fire watch patrols began checking room CB63-04 at 1700 hours0.0197 days <br />0.472 hours <br />0.00281 weeks <br />6.4685e-4 months <br />.
The degraded Kaowool wrap was identified by Operations personnel performing a visual
'i
' Surveillance inspection and was apparently damaged by persons l
brushing against the wrap.
The probability of a fire propagating
.through the fire wall penetration seal was minimal because of the remaining layers of Kaowool wrap in addition to the-installed fire suppression / fire detection equipment.
ACTION TAKEN The degraded Kaowool wrap was replaced and satisfactorily.
t inspected.
Fire wall-penetration seal #1707 was declared OPERABLE.
l
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on May 25,1984, at 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br />.
i The Licensee considers this an isolated incident and plana no
[
further, action.
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