ML20006E572
| ML20006E572 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 02/14/1990 |
| From: | Michael Ray TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-88-14, NUDOCS 9002260037 | |
| Download: ML20006E572 (4) | |
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- TENNESSEE VALLEY AUTHORITY.
CH ATTANOOGA. TENNESSEE 37401 I
SN 157B Lookout Place FEB 141990 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C.
20555 Gentlemen:
In the Matter of
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Docket Nos. 50-327.
Tennessee Valley Authortty
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50-328
, SEQUOYAfi NUCLEAR PLANT (SQN) - COMPLETION OF COMMITMENTS FOR GENERIC LETTER 88 INSTRUMENT AIR SUPPLY SYSTEM PROBLEMS AFFECTING SAFETY-RELATED EQUIPMENT-
Reference:
Letter from TVA to NRC dated Februa.y 23, 1989, " Browns Ferry Nuclear Plant (BFN), Sequoyah Nuclear Plant (SQN), and Watts Bar.
Nuclear Plant (WBN) - Response to Generic. Letter 88 '
Instrument Air Supply System Problems Affecting Safety-Related Equipment" This. letter provides written notification that all actions associated with the nine SQN commitments contained in the reference letter are complete, Enclosed' is a listing of the commitments made for SQN in Enclosure 4 of the referenced.
' letter and the-~ completion date for each.
Please direct questions concerning this issue to D. V.-Goodin at (615) 843-7734'.
Very truly yours, TENNESSEE VALLEY AUTHORITY h
Managei,Nuclea%/
r Licensing 4
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and Regulatory Affairs
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Enclosure cc: See.Page 2
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- LU.S. Nuclear Regulatory Commission
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1 cc (Enclosure):
.MS. S. C.-Black, Assistant Director L'
for Projects l
L' LTVA Projects Division _
l U.S. Nuclear Regulatory Commission.
o One White Flint, North L,' l b:
_11555 Rockville Pike
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Rockville, Maryland 20852 l
Mr. B. A. Wilson, Assistant Director for Inspection Programs; L,
TVA Projectt Division U.S. Nuclear Regulatory Commission F
Region II.
F 101 Marietta. Street, NW, Suite 2900 Atlanta, Georgia 30323 lNRC Resident Inspector
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!Sequoyah Nuclear Plant.
2600 Igou. ferry Road r
Soddy Daisy, Tennessee 37379 a
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f ENCLOSURE g
f*", ' M-GENERIC LETTER 88-14. -.
SUMMARY
LIST Of COMMITMENTS
,e SQN.
1 1.
"PMT-84,.which is still open, will be revised to require air quality
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verification for. lubricant content at the rotary screw compressor's discharge downstream of the 2-stage pipeline filter.
The scoping document for PMT 84 will be revised by May 4, 1989, and PMT-84 will be performed by July 31, 1989."
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- Completed April 24. 1989,' and July 28, 1989, respectivaly, e
- 2.. " Plant procedures will.be revised to require routine. set point l
verification of moisture elements in the ACA and SCSA systems by l
h July 31, 1989."
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Completed August 28, 1989.
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- 3. " Routine air quality testing will be impleinented by August 28,:1989."
Completed September 12, 1989.
4.
"The need for local filters for 28 users will be evaluated by June 1, 1989."'
' Completed May 25, 1989.
5.
"New procedures will be created or_ existing procedures will be revised by May,15, 1989, to. ensure adequate PM for syster drain traps."
Completed April 26, 1989.
- 6.
"NE will perform a review of-A01-10 to ensure the. air systems events are adequately covered and responded to by Operations ~from an engineering standpoint. Any identified deficiencies will be transmitted to Operations to eliminate possible interface problem between NE and-Operations.
This= review will be complete by September 29, 1989."
~ Completed September 27, 1989.
7.
"As part of TVA's. review of SOER 88-01, a review is being conducted to
' identify improvements required to the SCSA and ACA pneumatic accumulators a:
-and check valves and their maintenance testing procedures.
Thh review p,1
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is being done to ensure that (1) accumulator check valves will' properly
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rescat upon both a gradual and rapid loss of upstream pressure, (2) check g'
valves are properly designed for air service, (3) low accumulator tank 4
pressure _is properly annunciated, and (4) accumulator tank design 1s-properly documented by calculations.
This review will be complete by April;3, 1989."
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-Completed Apr11 3, 1989.
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q ; mem of :g,, "An evalu'atio.will?be performediby' September 15,21989, to determinelif 0:
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-;the failure ~ position ofc18 unmarked users:should;beishown.:and drawings
@QF A will:be/ revised *accordingly."
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N-f'J Completed September 30, 1989.
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'.An evaluation ~cf the proper failure po'sition:of 10.' air-operated j
ventilation dampers will be completed by May 4 1989."'
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,..'yi, Comple'te'd'Aprili21, 1989.
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