ML20095C168
| ML20095C168 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 12/01/1995 |
| From: | Shell R TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9512110393 | |
| Download: ML20095C168 (4) | |
Text
j
+e Tennessee Valley Authority, Post Offce Box 2000, Soddy-Daisy, Temessee 37379-2000 1
December 1, 1995 U.S. Nuclear Regulatory Commission ATTN Document Control Desk Washington, D.C. 20555 Gentlemen In the Matter of
)
Docket Nos. 50-327
' Tennessee Valley Authority
)
50-328 SEQUOYAH NUCLEAR PLANT (SQN) - FIRE PROTECTION IMPROVEMENT PLAN PERIODIC l
STATUS REPORT A working meeting between TVA and NRC was held at SQN on August 19, 1991, f
to discuss the self-identified problems in SQN's Fire Protection Program and the improvement plan efforts initiated by TVA.
As a result of this meeting, TVA agreed to submit periodic status reports to inform NRC on the progress of efforts made in conjunction with the improvement plan.
The most recent status report identifying progress achieved and areas i
needing further action is included in the enclosure.
The original targeted completion date for activities specified in the Fire Protection Improvement Plan was set for December 1, 1994. This was later revised to December 1, 1995 as a result of the impact of a two-unit outage involving erosion and corrosion problems and the associated engineering evaluations.
Significant progress has been made toward completion of the four phases of the Fire Protection Improvement Plan. As reflected in the enclosure, Phases 1, 2, and 3 are complete, and the only Phase 4 item that is not complete is the SQN Fire Protection Report. The design for a potable water fire protection supply system was issued in June 1995, and the installation is underway. Due to the complexity of the system and the i
significant financial resources required to complete this modification, it is not anticipated that the system will be operable until late 1997.
The potable water system was anticipated to be the primary system used as the basis for the Fire Protection Report.
l l
9512110393 951201
,Q 94 n t
.- E.
,.OCK 05000327
_PDR
~. _
A-
'$r p
l
.t U.S. Nuclear Regulatory Commission
,Page 2 December 1, 1995 However, due to the potential for the operability of the potable water
. system being extended until late 1997, the report will include provisions for the current rav water system. 'Also, SQN has been closely following
-the NRC review /approvkl of the Fire Protection Report for Watts Bar Nuclear Plant (f /BN). SCW will utilize a format similar to the WBN report and will incoryorate lesscus learned during the NRC review of WBN's l report.. Final comments wer6 received and resolved for WBN in October this year. Therefore, SQN is.* vising the commitment date to complete Phase 4 of tha Fire Protection Impr9vement Plan to August 30, 1996.
Since there is now only one outstanding item, and no significant status changes are expected for this item until'it is completed, periodic status reports in the interim would not convey any new information. Therefore, this report will be the last periodic status report on the Fire Protection Improvement Plan. TVA will notify NRC when the remaining open
-item is complete. NRC will also be notified if there are any changes to the existing schedule for completion.
If you have any questions concerning this submittal, please telephone S. D. Gilley at (423) 843-7427.
t sincerely, b h.,A l/
c R. H. Shell Manager SQN Site Licensing i
Enclosure cc (Enclosure):
Mr. D. E. LaBarge, Project Manager U.S. Nuclear Regulatory Commission one White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 NRC Resident Inspector
]
Sequoyah Nuclear Plant
]
-2600 Igou Ferry Road Soddy-Daisy, Tennessee 37379-3624 l
Regional Administrator U.S. Nuclear Regulatory Commission E
Region II
[
.101 Marietta Street, NW, Suite 2900 l
Atlanta, Georgia 30323-2711 1
i
- 2 fi..
?.
e-ENCLOSURE'
' FIRE PROTECTION IMPROVEMENT PLAN - STATUS FOR PERIOD ENDING.
NOVEMBER-30,-1995' Phane'I - Phase I is'ca= alate Phmae II - Phase II is Camalate p
Phman III - Phmae III is Complete Phase IV - Taracted ea-alation Data Auaust 30, 1996 4-1 Perform an independent fire protection assessment to ensure that the actions taken in Phase III are properly Laplemented and l
effective.- This-item is complete.
j
'4-2 Complete an evaluation of the mechanical and electrical fire barrier penetration seals in accordance with the guidelines in l
This item was rescheduled and i
. completed during Phase III as Item 3-8.
l l
4-3 Issue the remaining updated design documentation to support the
'l final compilation into the SQN Fire Protection Report and establish a process to maintain the documenb Ton current.
I Status Work required for the submittal of the Fire Protection Report is approximately 10 percent complete. The Fire Protection. Report is expected to be submitted by 1
August 30, 1996.
j 4-4 Issue a design package for Project Control No. (PCN) 607.
-Status: The design package for this item was issued in June 1995.
j.
This item is complete.
1The final design for the new fire protection pumping system being installed at SQN involves an extensive redesign of the system. The final design involves the following features:
(1) replacement of the existing
. pumping. system; (2) abandonment of the current pressure control system; (3) pigging and replacement, when
'necessary, to remove flow inhibiting corrosion and degraded piping; and (4) performance of a full system hydrostatic test prior to declaring the new system operational..The new design establishes a more reliable
. fire protection system. Detailed life cycle analysis of the existing fire protection system was not warranted because.of the extensive nature of the system redesign.
l 2
.e.
e.
4'-5 ' Ferform a life-cycle analysis on high-pressure fire protection components and provide replacement-recommendations.
status: This item will be accomplished in conjunction with the
, upgrade to the fire protection system within the scope of-
. PCN 607. This item should be considered an integral part of Item 4-4.
a l
l i
...