ML20085H629
| ML20085H629 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 08/22/1983 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Sternberg D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| REF-PT21-83 10CFR-050.55E, 10CFR-50.55E, ANPP-27605-BSK, DER-82-46, NUDOCS 8309120182 | |
| Download: ML20085H629 (3) | |
Text
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a hh?.s Arizona Public Service Company bD p
PO. BOX 21666. PHOENIX. Gl2ONA 85036
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August 22, 1983 f
U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park
{p' 1450 Maria Lane - Suite 210 Walnut Creek, CA 94596-5368 Attention: Mr. D. M. Sternberg, Chief Reactor Projects Branch 1
Subject:
Interim Report, Revision 2 - DER 82-46 A 50.55(e) Potentially Reportable Deficiency Relating to ITT-Barton Pressure Transmitters Supplied By CE Do Not Meet Overpressure Requirements.
File: 83-019-026; D.4.33.2 Re fere nce: (A) Telephone Conversation between J. Ekhardt and G. Duckworth on August 24, 1982.
(B) ANPP-21837, dared September 15, 1982 (Interim Report)
(C) ANPP-22279, dated November 15, 1982 (Time Extension)
(D) ANPP-22731, dated January 14, 1983 (Time Extension)
(E) ANPP-23274, dated March 17, 1983 (Revised Interim Report)
(F) ANPP-23889, dated May 25, 1983 (Time Extension)
Dear Sir:
The NRC was notified of a potentially reportable deficiency in Reference (A), Interim Reports were transmitted by References (E) and (E), and Extensions were requested by References (C), (D), and (F). It was estimated that a Final Report would be available by August 30, 1983, in Reference (F).
Due to the extensive investigation and evaluation required, a revised Interim Report is attached.
It is now expected that this information will be finalized by December 14, 1983, at which time a complete report will be submitted.
Very truly yours, W
Q E. E. Van Brunt, Jr.
APS Vice President, Nuclear Projects Management ANPP Project Director EEVBJr./RQT:en Attachment ec: See Attached Page Two gg 8309120182 830822 T6 ykh PDR ADDCK 05000528 S
PDH
1 U. S. Nucicar Regulatory Commission Page Two cc: Richard DeYoung Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 T. G. Wo od s, J r.
G. C. Andognini J. A. Roedel D. B. Fasnacht A. C. Rogers B. S. Kaplan W. E. Ide J. Vorees J. R. Bynum P. P. Klute/D. D. Green A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher R. M. Grant D. R. Hawkinson L. E..Vorderbrueggen G. A. Fiore111 S. R. Frost J. Self Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway - Suite 1500 i
Atlanta, Georgia 30339 l
l l
e INTERIM REPORT - REVISION 2 - DER 83-46 POTENTIAL REPORTABLE DEFICIENCY ARIZONA.PUBLIC SERVICE COMPANY (APS)
PVNGS UNIT 1 1.
Pot _ential Probl.em As documented by Combustion Engineering (C-E) letter V-CE-20050 dated 4/29/82, two (2) ITT Barton pressure transmitters have been installed in Unit I which do not meet the required overpressure range. The condition is applicable to Pressurizer Restricted Range transmitters tag number PT-103 and PT-104. The transmitters installed in Unit I have an overpressure range of 0-1000 psi. The Unit 2 and 3 devices were supplied at 0 to 2485 psi overpressure protection.
ITT Barton has also filed a 10CFR Part 21 report concerning the Model 763 and 764 Electronic Trans.mitters based on thermal non-repeatability at nominal in-containment ambient temperatures.
II.
Approach To and_ Status _Qf_ Proposed Resolut_ ion (A) ITT Barton has indicated th.st they have resolved the Model 763 and Model 764 therual non-repeatabiity problem. This will be addressed in a 10CFR Part 21 report to be issued by ITT-Barton. Current production models will incorporate design engineering changes. Pressure transmitters previously shipped to clients will be provided with field-change kits.
(B) PVNGS pressure transmitters, tag numbers 01JRCA-PT-0103 and 01JRCB-PT-0104 were returned to ITT Barton for conversion from the 0-1000 PSIG range to the 0-3000 PSIG range. Modifications to these transmitters for the correction of thermal non-repeatability created a new problem of transmitter accuracy within the required calibration range of approximately 0-760 PSIG. ITT-Barton's conclusion is that they cannot meet the isolated case of the accuracy criteria for 6 transmitters, tag l
numbers 01, 02, 03-RCA-PT-0103 & 01, 02, 03-RCB-PT-0104.
t (C)
C-E is investigating the replacement of the above 6 j
transmitters with Westinghouse or Rosemount transmitters, which l
they are confident will meet the percent accuracy criteria.
III. Proigeted _ Completion Qf,Corrgqtive.. Action and. Submittal _o( j)q Fing1 m
Report Evaluation of this condition and submittal of the Final Report is forecastto be completed by December 14, 1983.