ML20098F490
| ML20098F490 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 09/12/1984 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANPP-30493-TDS, DER-84-61, NUDOCS 8410030045 | |
| Download: ML20098F490 (3) | |
Text
-
RECSVED
'mc Anzona Public Service Company WI SEP 17 pll 3 5, September 12, 1984 e ANPP-30493-TDS/TRB" NIVI
U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, CA 94596-5368 Attention: Mr. T. W. Bishop, Director Division of Resident Reactor Projects and Engineering Programs
Subject:
Interim Report - DER 84-61 A 50.55(e) Potentially Reportable Deficiency Relating To Auxiliary Pressurizer Spray System.
File: 84-019-026; D.4.33.2 Ref ere nce: Telephone Conversation between D. Hollenbach and T. Bradish on August 14, 1984
Dear Sir:
The NRC was notified of a potentially reportable deficiency in the referenced telephone conversatien. At that time, it was estimated that a determination of reportability would be made within thirty (30) days.
Due to the extensive investigation and evaluation required, an Interim Report is attached. It is now expected that this inf ormation will be finalized by October 21, 1984, at which time a complete report will be submitted.
Very truly yours,
[k, O rer-f ow ~
E. E. Van Brunt, Jr.
APS Vice President Nuclear Production ANPP Project Director EEVB/TRB/nj Attachment cc: See Page Two 8410030045 840912 PDR ADOCK 05000528 S
PDR i\\
.((47
r_
e e
Mr. 7. W. Bishop DER 84-61 Page Two cc:
Richard DeYoung, Director Of fice of Inspection and Enf orcement U. S. Nuclear Reguintory Commission Washington, D. C. 20555 T. G. Woods, Jr.
D. B. Karner W. E. Ide D. B. Fasnacht A. C. Rogers L. A. Souza D. E. Fowler T. D. Shriver C. N. Russo J. Vorees J. R. Bynum J. M. Allen J. A. Brand D. Canady A. C. Gehr l
W. J. Stubblefield W. G. Bingham i
R. L. Patterson R. W. Welcher H. D. Foster D. R. Itawkinson L. E. Vorderbrueggen j
R. P. Zimmerman S. R. Frost L. Clyde M. Woods T. J. Bloom Records Center Institute of Nucicar Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, CA 30339 1
i
7
.o o
INTERIM REPORT - DER 84-61 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY ( APS)
PVNCS UNITS 1, 2, 3 I.
Potential Problem A review of the Auxiliary Pressurizer Spray System ( APSS) indicates the system may lose the capability of performing its intended function. Should loop charging valve CH-PDV-240 mechanically stick open, insufficient APSS flow toward the pressurizer could result.
II.
Approach To and Status Of Proposed Resolution Combustion Engineering (C-E) has been notified by Bechtel of this deficient condition. Bechtel is awaiting C-E's f ormal response prior to submitting a final report on the resolution of the problem. Engineering of DCPs ISM, 2SM, and 3CM-CH-197, Rev. O, have been initiated to add a f ail-closed pneumatically operated valve in series with valve CH-240, thereby climinating the potential single f ailure concern f or the APSS. The DCP for Unit I will be implemented prior to fuel load.
III.
Projected Completion of Corrective Action and Submital of the Final Report Evaluation of this condition and submittal of the Final Report is f orecast to be completed by October 21, 1984.
_ _ - _.