ML17300A946
| ML17300A946 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 06/24/1987 |
| From: | Haynes J ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 161-00312-JGH-J, 161-312-JGH-J, TAC-56657, NUDOCS 8706300993 | |
| Download: ML17300A946 (6) | |
Text
REGULAT Y INFORMATION DISTRIHUTIO YSTEM (RIDS)
ACCESSION NHR:8706300993 DOC.:DATE: 87/06/24 NOTARIZED:- NQ DOC/ET 0 FACIL BTN-50-528 Palo Verde Nuclear Btationi.Unit. i~ Arizona Publ j, 05000528 AU7H. NAME AUTHOR AFFILIATION HAYNES> J. Q.
Arizona Nuclea'r Poeer Prospect (Formerly Ariz'ona Public'erv RECIP. NAME REClPIENT AFFILIATION
'Document Control Branch (Docu'ment Control Desk)
SUBJECT:
Foreards summary of re'solutions reacf}ed ",re piping verification testi per License Condition '2 C. 9;iTe'st 73HF-1ZZ11 'deleted from procedure 5 test, results approved on
'61113.
DISTRIBUTION CODE:
A001D COPIES RECEIVED: LTR i
ENCL +, SIZE TlTLE:
GR Submittal:
General Distribution NOTES: Standardized plant. M. Davisi NRR: 1Cg.
05000528 REC IP IENT ID CODE/NAME PDS LA LICITRAs E CGP IEB L'TTR ENCL 0
1 1
REC IP IENT ID CODE/NAME PD5 PD DAVIS) M COP IEB LTTR.'ENCL 5
'5 1;.,1 INTERNAL:. ACRS NRR/DEBT/ADE NRR/DQEA/TSH QQC/HDBi EXTERNAL:
EG8(G HRUSKEi S NRC PDR NOTES:
6, 6
1 1
1 0
1 1
1 1
ARM/DAF/LFMH NRR/DEBT/ADS R$4MR ILRH:
REQ FILE:
01 LPDR NSIC 1
1 0
1 TOTAL NUMHER OF CQP1ES REQUIRED:,LTTR 26
- ENCL, 23
s
Arizona Nuclear Power Project P.o. BOX 52034
~
PHOENIX. ARIZONA85072-2034 June 24, 1987 161-00312-JGH/JKR U.S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.C. 20555
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Unit 1
Docket No STN 50-528 (License NPF-41)
PVNGS Unit 1 Piping Verification Test Summary Supplement File: 87-B-056-026 87-136-419
Reference:
Letter from E.
E.
Van Brunt, Jr.,
ANPP, to G.
W. Knighton, NRC, dated April 18, 1986 (ANPP-36295).
Subject:
PVNGS Unit 1 Piping Verifi-cation Test Summary.
Dear Sir:
In the above referenced
- letter, ANPP submitted the Piping Verification Test Sum-mary for Unit 1 in accordance with License Condition 2.C.9 of License NPF-41.
The test summary discussed two test items that were outstanding.
- Attached, please find a
summary of their resolutions.
With these resolutions, the PVNGS Unit 1 piping verification program is complete.
If you have any further questions, please contact Mr. W. F. Quinn of my staff.
Very truly yours, J.
G. Haynes Vice President Nuclear Production JGH/JKR/rw cc:
0.
M.
E. E.
E. A.
G.
W.
R.
P.
A. C.
De Michele Van Brunt, Jr.
Licitra Knighton Zimmerman Gehr 7 pygmy I
g70jgo09~
0500O528 pDR I5IDOCK 0 PD~
Pc
f
~
~
1 I'
Attarhment to 161-00312 0
At the time of submittal of the piping verification test summary for PVNGS Unit 1,
two test items remained outstanding as discussed in the conclusion to the summary.
The following is a description of the outstanding test items and their resolution.
A.
Testin of the Auxiliar Steam Pi in to the Seal In 'ection Heat Exchan er.
Test summary section:
2.7.2.1, piping verification pre-core carryover test.,
Resolution:
After.several additional unsuccessful attempts were made to supply auxiliary steam to the seal injection heat exchanger,'ngineering evaluation report 86-AS-20 determined that the specified line up was not consi-dered a
normal plant configuration and did not fall under the requirements of the piping verification pro-gram.
The testing requirement has been deleted from the procedure and the test results were approved on 11-13-86.
B.
Main Feedwater Pi e Whi Restraints Test summary section:
2.7.3.4, pipe whip restraints thermal expan-sion measurements, 73PA-1ZZ09.
Resolution:
The identified restraints that did not meet the accep-tance criteria, as identified in the test
- summary, were reworked during the
- March, 1986 outage.
During the return to
- power, additional rework was required in an effort to achieve the required design gaps.
Due to the nonrepeatability of the system thermal expansion within the desired
- envelope, the achieved pipe whip restraint gaps have still not met the acceptance criteria but are acceptable for continued power operation as documented on engineering evaluation report 86-SG-105.
Based on the
- above, the design gaps have been increased as documented by calculations in design change package 10C-ZC-191, which will require some minor shim modifica-tions to the restraints but no additional gap verifica-tion.
- Thus, with the gaps being conditionally accept-able as installed and no further monitoring required after the
- rework, the intent of the procedure has been met and the test results have been approved on May 21, 1987.
With the above outlined exceptions
- resolved, the PVNGS Unit 1 piping verification program is complete and has met all the applicable regulatory requirements.