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 .
) Docket Nos. 50-327.
Tennessee Valley Authortty
) 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%/
H r Licensing 4 i and Regulatory Affairs
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Enclosure ,
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An Equal opportunity Employer k
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- LU.S. Nuclear Regulatory Commission .FEB 14 B90 L^ , -+
1 cc (Enclosure):
! ", .MS. S. C.-Black, Assistant Director :
L' for Projects l L' LTVA Projects Division _ l o U.S. Nuclear Regulatory Commission. ,
, One White Flint, North L
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,' l _11555 Rockville Pike -
[ Rockville, Maryland 20852 l
Mr. B. A. Wilson, Assistant Director for Inspection Programs; ;
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TVA Projectt Division
! U.S. Nuclear Regulatory Commission ,
F Region II. -
F 101 Marietta. Street, NW, Suite 2900 ;
Atlanta, Georgia 30323 lNRC Resident Inspector
'n !Sequoyah Nuclear Plant.
2600 Igou. ferry Road r Soddy Daisy, Tennessee 37379 a ,
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f ENCLOSURE ;
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M- GENERIC LETTER 88-14. -.
SUMMARY
LIST Of COMMITMENTS
,e SQN. 1
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- 1. "PMT-84,.which is still open, will be revised to require air quality '
l 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."
h ; 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." j
/ e Completed August 28, 1989.
Y :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 a: ' identify improvements required to the SCSA and ACA pneumatic accumulators
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-and check valves and their maintenance testing procedures. Thh review p,1 ,
is being done to ensure that (1) accumulator check valves will' properly rescat upon both a gradual and rapid loss of upstream pressure, (2) check
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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."
L -Completed Apr11 3, 1989.
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q ; mem of :g,, "An evalu'atio.will?be n performediby' September 15,21989, to determinelif 0: .,;
-;the failure ~ position ofc18 unmarked users:should;beishown.:and drawings
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@QF ,
A will:be/ revised *accordingly." ;
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Completed September 30, 1989. >
,t-U,y , 9.1 '.An
' evaluation ~cf the proper failure po'sition:of 10.' air-operated '
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, ventilation dampers will be completed by May 4 1989."'
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Comple'te'd'Aprili21, 1989. .
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