ML20028F135
| ML20028F135 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 01/12/1983 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Sternberg D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, ANPP-22713-GHD, DER-82-38, NUDOCS 8301310177 | |
| Download: ML20028F135 (7) | |
Text
. Docket Nos. 50-528/529/530
....p 50.55 (e) Rsport flECEl'GO .
rac Arizona Public Service Company PO box 2t%6
- PHOENIX ARilONA 85036 {,g 3 January 12, 1983 ANPP-22713-Gild /BSK fiEG G y a U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, California 94596-5368 Attention: Mr. D. M. Sternberg, Chief Reactor Projects Branch 1
Subject:
Final Report - DER 82-38 A 50.35(e) Report Relating to IIenry Pratt 8" Containment Isolation Valves for Unit #3 Were Received With Actuator Bolts Loose. No Torque Specified File: 83-015-026 D.4.33.2 l
Reference:
(A) Telephone Conversation between T. Bishop and G. Duckworth on July 13, 1982 (B) ANPP-21604, dated August 11, 1982 (Interim Report)
(C) ANPP-22178, dated November 2, 1982 (Interim Report, Revision 1) i
Dear Sir:
Attacaed, is our final written report of the Deficiency referenced above, which has been determined to be Not Reportable under the requirements of 10CFR50.55(c) .
Very truly y urs, a y l -
CtLO mttt (N E. E. Van Brunt, Jr.
APS Vice President Nuclear Projects ANPP Project Director EEVBJr/CilD:ske Attachment cc: See Attached Page 2
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8301310177 830112 PDR ADOCK 05000530 0 PDR
] U. S. Nuclear Rsgulatory C mmiccion i Attention: Mr. D. M. Sternberg, Chief l ANPP-22713-GIID/BSK j
January 12, 1983 i Page 2 i
cc ritchard DeYoung Director
. Office of Inspection and Enforcement
! U. S. Nuclear Regulatory Commission.
Washington, D. C. 20555
, T. C. Woods, Jr.
J. A. Roedel D. B. Fasnacht i C. C. Andognini J. R. Bynum A. C. Rogers
]
B. S. Kaplan l W. E. Ide J. Vorces J. A. Brand A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher R. M. Grant D. R. llawkinson L. E. Vorderbrueggen G. A. Fiorelli P. P. Klute
- Lynne Bernabei, Esq.
Ilarmon & Weiss
. 1725 "I" Street, NW Washington, D. C. 20006 i
j R. L. Greenfield
] Assistant Attorney General 4
Bataan Memorial Building Santa Fe, New Mexico 87503 J
l l
FINAL REPORT - DER 82-38 DEFICIENCY EVALUATION 50.55(e) ,
ARIZONA PUBLIC SERVICE CONTANY (APS)
PVNGS UNIT NO. 3 I. Description of Deficiency During Recieiving Inspection, four (4) Containment Purge System Isolation 8" Butterfly Valves, supplied by Henry Pratt, were received at the jobsite with loose Limitorque actuator-to-gear box mounting bolts. These bolts were initially secured by Limitorque and not usually loosened by Pratt during assembly to the valves; however, evidence of marred paint on the bolt heads indicates that the bolts were loosened sometime after release from Limitorque. One (1) bolt from each-of two (2) valve actu-ators were found not installed and lying on the shipping pallet, and there was evidence of damage to the shipping container (s).
Contact with Limitorque disclosed that a specific torque value was not specified for the four (4) hex head bolts securing the unit; however, per Limitorque Telex dated June 3, 1982, the bolts should be tightened to approximately 85 ft. lbs. or as tight as reasonably possible since direct access with a torque wrench is not possible.
II. Analysis of *Saf'ety Implications Had this condition remained uncorrected, the valves would not have satisfied required Seismic I design criteria, and c...d fail to close following a SSE during a power access purge operation.
Given a simultaneous LOCA, an excess release of radioactivity from the Containment could occur.
Additional surveillance and investigation indicate that this is an isolated case of an obvious defect detected and corrected as a normal Receiving Inspection function.
A jobsite Quality Assurance Surveillance of eighteen (18) similarly (elivered valves was conducted for evidence of loose bolts, and none were found. A Surveillance by Bechtel's Supplier Quality organiza-tion at the vendor failed to find any other similar problem. This condition is not a generic Deficiency and is evaluated as Not Report-able.
I Finsi Report - DER 82-38 Page 2 III. Corrective Action
- 1. Nonconformance Report No JX-642 will be dispositioned to repair the condition by tightening the bolts to approxi-mately 85 ft. Ibs.
- 2. Bechtel's Senior Project Supplier Quality Supervisor has issued an Inspection Check Sheet for Limitorque Motor-Operated Valves. This request will intensify the inspection activity at all suppliers providing valves with Limitorque operators.
Attachments: Bechtel IOM, D. J. Eshleman to Distribution, dated October 14, 1982 Letter, Henry Pratt Company to Bechtel Power Corporation, dated October 22, 1982 i
ATTACWENT TO DER 82-38 PRATT HENRY PRATT COMPANY M W //
esvariu i nuir u ine re m riisiri ~,wii nii% ' me w 401 SoifTH IIIGHIAND AVENUE AIJRoRA. ILtJNOIS So607 _~
October 22, 1982
~ CCT 26'82 Bechtel Power Corporation / Eb.D --
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Palo Verde Nuclear Generating Station '
P.O. Box 49 am C Palo Verde, Arizona 85343 Ely roi Attention: Mr. W. J. Stubblefield d m.
Field Construction Manager 1,, I 0' __
us
Subject:
Bechtel Job 10407 Butterfly Valves
['**
o Your 13-JM-605, NCRJX-642 [ '." ,
Pratt D-Oll8-6&7 su u . . - '.
m , TD -
Dear Mr. Stubblefield:
In response to your letter of July 26, the mounting bolts connecting the Limitorque SMB-00 motor to the HBC operator should be torqued down to 85 foot pounds. This value is based on unlubricated fasteners. There are no special tools required as the fasteners are standard socket head cap screws.
This connection is made at the Limitorque factory, and operators are inspected visually to insure all of the hard-ware is tightened. At Pratt factory, the HBC, with SMB at-tached, is mounted to the valve adaptor plate. The entire assembly is then performance tested to assure proper operation and fastener connections. It is both Pratt and Limitorque experience, that inspection procedures and per-formance testing are effective in preventing equipment from being shipped with loose fasteners.
It is noted on Bechtel nonconformance report JX-642 that equipment arrived at jobsite in damaged crates. Loose hardware identified may be the result of rough handling after shipment from Pratt.
This is an isolated case and is not considered reportable under 10CFR Part 21.
If we may be of further service to you, do not hesitate to contact us.
Very truly yours, G1 .
B. R. Cummins Quality Assurance Manager BRC/np
w ,
.. . . .= / .
ATTACHMENT TO DER 82-38 Interoffice Memorandum
- 7. Distribution F n. seo.
soni.c, Bechtel Job 10407 o0,0 October 14, 1982 Inspection Check Shee't for Limitorque Motor Operated Valves From D. J. Eshleman oe Procurement Supplier Quality cop.es io D. R. Bonano At LAPD/Downey Ent. 207~
K. J. Stwertnik R. W. Welcher .
D. L. Yager File Please utilize the attached Inspection Check Sheet for the remaining of all Limitorque Motor Operated Valves.
If you should have any questions, do not hesitate to call my office.
i C
. J. Eshleman DJE/cak Sr. Project Supplier Quality Supervisor Attachments:
Inspection Check Sheet SQAR 81-8
' Distribution:
, W. R. Arcos R. D. Bartels R. B. Bell M. C. Haneberg D. Jenkins J. F. Kilstrom M. F. Wilson e '
Lao-060 0 (ST a pe D a m Of 9 9 /76
.. l Polo Verde Nuclear Generating Stction inspectirn Chsek Shast 81-8 Limitorque Motor Operated Valves j
P.O. Number Rev. Supplier P.O. Item Nc. Tag No. Quantity Date derified Valve Description *'
Drawing _ Rev.
Limitorque Size Current Required Current Used Limitorque Serial. Number -
Motor I.D.i Torque Switch Setting-Open Close l
Valve Data Sheet Used Required Time to Open Close Actual-Open Close The following fifteen items are to be verified on each Limitorque Motor Operated Valve and the results recorded. SQAR 81-1 Items 2 thru 7 to be used as a guide with this check sheet.
Place in each box, as the verification is completed, an "S" for satisfactory or a "If' for unsatisfactory.
Unsatisfactory results to be explained in the body of QSR.
- 1. C Checked for disconnected wires.
- 2. Checked for proper terminals (rings, tongue, etc.).
- 3. O Checked for wires pulled out of terminals.
- 4. UCheckedforloose, disconnected,ormissingwires.
- 5. C Checked for loose crimps. ,
- 6. Checked for undersized conductors.
- 7. CCheckedforbrokenterminals. .
- 6. Checked for loose screws.
- 9. O Checked for broken termina2 diocks.
- 10. OCheckedforproperamount of wires under each screw (three wire not permitted).
- 11. UCheckedforimproperlytrainedwires-wiredamagewhenclosingcover.
- 12. UCheckedforcrackedrotorsonlimit switches, check for presence of melamine switches.
- 13. CChecked for under rated terminal blocks or strips (dimensional can determine).
14 UCheckedfordeficient stem protectors (screwed too far into operator).
- 15. __ Checked for proper staking or crimping of Jocking nuts.
I t, .
A copy of th2s check sheet should be attached to the applicable QSR.
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Inspector's Signaturs
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