ML20030C372
| ML20030C372 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 07/10/1981 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Faulkenberry B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, ANPP-18370-BSK, NUDOCS 8108260035 | |
| Download: ML20030C372 (6) | |
Text
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50.55(e) Report Docket Nos. 50-528/529/530 i
matamm iPanno suswmte c@snem P. O. Box 21666 PHOENIX, ARIZON A 85036 July 10, 1981 ANPP-18370-BSK/ JAR
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U. S. Nuclear Regulatory Commission I
Pegion V d(f O ' /
1 Walnut Creek Plaza - Suite 202 ch ' p' Pef g j
1990 North California Boulevard Walnut Creek, California 94596 7
l Attention:
Mr. B. H. Faulkenberry, Chief Reactor Construction and Engineering Support Branch Subj ect:
Final Report A 50.55(e) Reportable Condition Relating to Electrically Operated GE Circuit Breakers that Contain a Bearing Which May Deform After the Breaker is Left in the Charge Posi-tion for Several Hours File: 81-019-026 l
D.4.33.2 i
Reference:
Telephone Conversation between J. Eckhardt and B. S. Kaplan on June 12, 1981 (DER 81-16)
Dear Sir:
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Attached, is our final written report of the reportable deficiency, j
under 10CFR50.55(e), referenced above.
Very truly yours,
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'S & yen 5nah E. E. Van Brunt, Jr.
APS Vice President j
Nuclear Projects i
ANPP Project Director WI EEVBJr/BSK:ske
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D108260035 810710' yDRADOCK 05000528 PDR T$l - lcl.}
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..'s U. S. Nuclear Regulatory Commission Attention:
Mr. B. H. Faulkenberry, Chief ANPP-18370-BSK/ JAR July 10, 1981 Page 2 cc: Victor Stello, Jr., Director U. S. Nuclear Regulatory Commission Of fice of Inspection and Enforcement Washington, D. C.
20555 A. C. Gehr Snell & Wilmer R. L. Robb D. B. Fasnacht W. E. Ide A. C. Rogers J. M. Allen J. A. Brand W. H. Wilson W. G. Bingham W. J. Stubblefield R. L. Patterson R. W. Welcher D. R. Hawkinson Bruce Myerson, Esq.
Arizona Center for Law in the Public Interest 112 North Fifth Avenue Phoenix, Arizona 85003 Ms. Patricie Lee Hourihan 6413 South 26th Street Phoenix, Arizona 85040 M. A. Kiffer General Electric Company 5320 North 16th Street 1
Phoenix, Arizona 85016
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l FINAL REPORT REPORTABLE DEFICIENCY 50.55(e)
ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNITS NO. 1, 2 AND 3 I.
Description of Deficiency A condition was identified to this project by General Electric Service Advice 175-CPD No. 9.6, whereby, the electrically operated AKR-30 and AKR-50 Breakers, Serial Nos. N2689500001-6, manufactured by GE before December 19, 1980, contain a bearing which may become deformed after the breaker is left in the charge posi-tion for several hours.
The breakers are used in the following cquipment:
Bechtel Tag No.
Total Type Service of Equipment Quantity AKR-30
~ actor Trip Switchgear J-SBA-CO3 3
AKR-30 Supply Breaker J-SBB-C03 3
AKR-50 Battery A Supply Breaker E-PKA-M41 6
(includes 3 spares)
AKR-50 Battery B Supply Breaker E-PKB-M42 3
AKR-50 Battery C Supply Breaker E-PKC-M43 3
AKR-50 Battery D Supply Breaker E-PKD-M44 3
II.
Analysis of Safety Implications This condition has been reviewed as being reportable since, if left undetected and/or uncorrected, inad-vertent failure of one or more of these breakers would render the identified safety-related equipment inopera-tive.
III.
Corrective Action GE has committed to provide replacement bearing assemblies for the identified equipment and offer any support neces-sary to complete the corrective action.
GE has not provided Arizona Public Service Company with a definitive schedule for completion of corrective action.
bec:
W. G. Bingham J. Aguilar M. Torikian M. J. Jewell K. Kreutziger 3/GE-E-34593 MOC 151684 June 4, 1981 General Ziectric Company 5320 North 16th Stre t Phoenix, Arizone 85016 Attention:
Pr. V. A. Kiffer
Subject:
Arizona 'Auclear Power Project Pechtel Job 10407 CE Low Voltage Power Circuit Breakers, Type AFP
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File:
EP-071 NP-001 Peference: CE Service Advice 175-CPD No. 9 6, Pay 5 loF1
Dear Pr. Kiffer:
In response to the ref erenced Service Advice, we are using ATP-?O and ATP-50 electrically-operated low voltage power circuit breakere as indicated below:
Bechtel Tag No.
Total Type Service of Equfpment Quantity AFR 30 RTSC Supply Breaker J-SBA-C03 3
?
AFR 50 Battery A Supply P raker E-P KA-M41 f
(includes 3 spares)
AER 50 Battery B Supply Breaker E-P EB-M4 2
?
AFR 50 Battery C Supply Breaker E-PFC-M42 3
ARE 50 Battery D Supply Breaker E-P KD-M44 3
Please advise if this problem was reported to NFC in compliance with 10CFR50.55(e)/Part 21.
Also, please inform your schedule of retrofitting the af f ected breakers used in this project.
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Your response is requested by June 15, 1091. This completes Bechtel action on the referenced letter.
Very truly yours, BECHTEL POWEP COPPORATIOT C !T*"' 0'GNED BY v.5.'NhgYae i
Prcject EngineerinF FanaFer l
1es Angeles Power Division WGE :. B:nen:
cc:
E. E. Van Brunt, Jr.
L. Fielle - CE, El Yonte Office
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1 NSTALL ATION AND GENERAL c tE'C-T R I C us.sc Stavice sNoiNessiNo x P
DIVISION
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GENERAL ELECTRIC COMPANY s320 NORTH 16TH STREET ELECTRICAL AND ELECTRONIC PHOEN!X, APlzCNA e5016, Phone (602) 264-1751 Ih
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May 5, 1931
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Arizona Nuclear Power Project (Date) oA zon blic Service Co.
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7 Phoenix, Arizena 85036
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Attn: John T. Barrow, Jr., P.E.
] Process Follow
Subject:
Service Advice 175-CPD#9.6 AKR-30 and AKR-50 Electrically Operated Low Voltage Power Circuit Breakers Serial No.s N268950000 1-6 Our records indicate that you have Low Voltage Switchgear containing
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General Electric electrically operated Low Voltage Power Circuit Breakers in Nuclear Power Plant applications.
It has come to our attention that electrically operated AKR-30 and AKR-50 Breakers manufactured before December 19, 1980 contain a bearing which may become deformed after the breake:- is left in the charge position for several hours. This deformation can result in failure of the circuit breaker to close upon comand.
Although we are unaware of any such failures of electrically operated AKR-30 and AKR-50 Circuit Breakers in Nuclear Power Flcr.t applications, we intend to modify all affected breakers by substituting the improved I
bearing at no cost to you.
We are accelerating Manufacturing schedules to provide an adequate supply of replacement bearing assemblies. We will contact you in the very near future to schedule the corrective action. Wha tever support you require will be provided by us at no cost to you.
4 M. A. Ki ffer Field Service Engineer IESE-Industrial & Nuclear Services
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