ML20248K073
| ML20248K073 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 04/10/1989 |
| From: | Fox C TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 8904170212 | |
| Download: ML20248K073 (4) | |
Text
p TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 37401 5N 1578 Lookout Place APR 101989 U.S. Nuclear Regulatory Commission 1
ATTN: Document Control Desk j
Washington, D.C.
20555 i
l Gentlemen:
)
In the Matter of
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Docket Nos. 50-327 Tennessee Valley Authority
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50-328 SEQUOYAH NUCLEAR PLANT (SQN).- REVISING THE COMPLETION DATE FOR THE Q-LIST ASA COMMITTED TO IN OUR RESPONSE TO INSPECTION REPORT 50-327, 328/86-11 The purpose of this letter is to provide the status of the Q-list development' at SQN and to revise thejcompletion date for this effort.
TVA committed to' develop a Q-list as an improvement over existing processes using several lists. As previously stated in TVA's letter to NRC dated August 28, 1987, "TVA considers the implementation of the Q-list to be an important activity; however, the effort associated with this program must be
-accomplished in an integrated manner consistent with the manpower requirements within the Office of Nuclear Power." Accordingly, attention was not turned to this effort until after the principal restart activities were completed in September 1988. -TVA began the principal development effort with a pilot program designed to establish methodology and verify procedures. Once that was completed and appropriate adjustments were made, TVA began this effort in i
earnest in early 1989.
To date, TVA has classified and prepared data sheets for 8 systems out of the original 40.
TVA expects to have classified and prepared data sheets for at least 14 total systems by our original completion j
date of April 30, 1989, with total phase I project completion by January 30, i
- 1990, i
As stated in the February 29, 1988, submittal to NRC on this subject, completion of the phase I effort will satisfy all regulatory requirements.
The phase I effort will include those safety systems included in the critical structures, systems, and components list; the systems contained in the phase I portion of the Design Baseline and Verification Program; and additional I
systems that SQN Operations and Maintenance indicate are particularly important to them in accomplishing their work.
Therefore, we will not pursue i
our phase II effort to evaluate all the remaining non-safety-related systems in the plant.
The systems within the scope of phase I are shown on the list provided in i
enclosure 1.
TVA will delete the upper head injection system from the scope of this project because of the plans to remove that system from operation in the next refueling outage for each unit. A list of commitments is contained in enclosure 2.
8904170212 890410 PDR ADOCK 05000327 hb>O Q
PDC An Equal opportunity Employer I
[;
... d.S.'NuclearRegulat'oryCommission.
APR 101989.
L If-you have any questions concerning this submittal, please telephone-M. A. Cooper at (615) 843-6549.
Very truly yo'urs, TENNESSEE VALLEY AUiHORITY C.f0
' D / +1 H.-Fo, Jr., Vicd President and Nuclear Technical Director Enclosures cc (Enclosures):
Ms. S. C. Black, Assistant Director for Projects TVA Projects Division U.S. Nuclear Regulatory Commission One White Flint l North 11555 Rockville Pike Rockville, Maryland 20852 Ms. L.'J. Watson, Acting Assistant Director for Inspection Programs TVA' Projects Division U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Sequoyah Resident Inspector Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy Daisy, Tennessee 37379
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ENCLOSURE 1 SEQUOYAH Q-LIST-PHASE 1 SYSTEMS 1
_q 3
MAIN AND AUXILIARY FEEDWATER 3
13_
. FIRE PROTECTION 15 STEAM. GENERATOR BLONDOWN **
18 DIESEL FUEL OIL **
L26-HIGH-PRESSURE FIRE PROTECTION 30-VENTILATION 31 AIR-CONDITIONING 32 CONTROL AIR 33 SERVICE AIR **-
39 CO2 STORAGE,~ FIRE PROTECTION AND PURGING **
43-POSTACCIDENT SAMPLING 46 FEEDWATER CONTROLS **
57 SEISMICALLY QUALIFIED CABINETS, PANELS, AND INSTRUMENT RACKS **
59 DEMINERALIZED WATER **
61 ICE CONDENSER 62' CHEMICAL AND VOLUME CONTROL 63 SAFETY INJECTION 65 EMERGENCY GAS' TREATMENT **
67 ESSENTIAL RAW COOLING WATER 68 REACTOR COOLANT 70 COMPONENT COOLING 72 CONTAINMENT SPRAY **
74 RESIDUAL HEAT REMOVAL **
77 WASTE DISPOSAL 78 SPENT FUEL COOLING 81
' PRIMARY WATER **
82 DIESEL STARTING AIR 83 HYDROGEN RECOMBINATION SYSTEM **
84 FLOOD MODE BORATION 87 UPPER HEAD INJECTION
- 88 CONTAINMENT ISOLATION 90 RADIATION MONITORING 92 NEUTRON MONITORING 94 INCORE FLUX DETECTORS 99 REACTOR PROTECTION SYSTEM 201/202 AUXILIARY POWER **
211 SHUTDOWN BOARDS AND TRANSFORMERS **
245
/ SECURITY 249/250 VITAL CONTROL POWER 40 Total System 87, Upper Head Injection, to be deleted from the scope of this project based on TVA commitment to NRC to remove the system at the next refueling outage for each unit.
Systems that will be complete by April 30, 1989.
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ENCLOSURE 2-
'l 3,
LIST OF COMMITMENTS b '.
1..
All> systems included in phase'I.of'the~SQN Q-list will be. issued and'
-incorporatedtin-controlled binders'by January 30,:1990.
4e 2.!Fourteensystemswillbeclassified_by. April.. 30, 1989..
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