ML20245J220
| ML20245J220 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 06/23/1989 |
| From: | Michael Ray TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-88-010, IEB-88-10, NUDOCS 8906300243 | |
| Download: ML20245J220 (9) | |
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r TENNESSEE VALLEY AUTHORITY CH ATTANOOG A. TENNESSEE 37401 j
< s SN 1578 Lookout Place 1
UUN 231989
-f U.S.~ Nuclear Regulatory Commission 1
. ATTN: Document Control Desk l
, Washington, D.C.
20555 L
Gentlemen:
In the Matter of
)
Docket Nos. 50-259 Tennessee Valley Authority
)
50-260 50-296 TVA'S RESPONSE TO BULLETIN 88-10:
NONCONFORMING MOLDED-CASE CIRCUIT BREAKERS The purpose of this letter is to provide TVA's response to Bulletin 88-10, Nonconforming Molded-Case Circuit Breakars (MCCBs) as stated in enclosures 2 and 4 of our letter dated' April.11,1989, for Browns Ferry Nuclear Plant (BFN).
An extension to June 23, 1989, was discussed with G. E. Gears on May 31, 1989.
i BFN has identified 185 Quality Assurance (QA) Level I and II MCCBs in warehouse stock and 361 breakers purchased for planned modifications but not installed. of this letter contains a list of the breaker 1
contracts and a traceability status as of June 15, 1989, for the stock and modification breakers. As shown on the ?nclosure, traceability to the circuit breaker manufacturer (CBM) is less than 80 percent.
These breakers are being controlled in accordance with the BFN corrective action program to prevent' their use until the requirements of NRC Bulletin 88-10 have been fulfilled.
'As required by action' item 4 of the bulletin, 27 MCCBs have been identified that were purchased between August 1, 1983 and August 1, 1988, and installed in Class IE safety-related systems during maintenance activities..An additional 38 MCCBs have been identified that were installed during modification activities.
Traceability to the CBM on these breakers is also less than 80 percent. Justifications for continued operation will be completed as required to support continued operation in z=:':ordance with the bulletin action item 2. of this letter provices a list of breaker contracts'and the traceability status as of June 15, 1989, on the installed breakers. The installed class IE safety-related MCCBs identified in enclosure 2 will be replaced prior to startup for each unit in accordance with action item 5 of the bulletin. provides list of our commitments.
L 8906300243 8906'23
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lU.S.. Nuclear _RegulatoryCommission
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jT If there are any questions concerning this issue, please telephone T. L. Pitts
.at (615) 751-f;087.
Very truly yours, TENNESSEE VALLEY AUTHORITY M )- Mh Manag(r, Wuclear Licensing and Regulatory Affairs En' closures
- cc-(Enclosures):
Ms. S. C. Black, Assistant Director for Projects TVA Projects Division U.S. Nuclear Regulatory Commission.
o One~ White Flint, North 11555'Rockv1 lie Pike F-Rockville, Maryland 20852 Mr. B. A. Wilson, Assistant Director' for. Inspection Programs TVA Projects Division U.S. Nuclear Regulatory Commission Region II
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101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323-
'NRC R'esident Inspector Browns Ferry Nuclear Plant
' Route 12, Box 637 Athen's', Alabama 35609-2000 l1 L::.
p Io__
BROWNS FERRY NUCLEAR PLANT STATUS OF NONCONFORMING MOLDED-CASE CIRCUIT BREAKERS HAREHOUSE STOCK q
Traceability Contract Number Mfgr.
Contractor to Mfgr.
{
70C60-92203 G.E.
G.E.
no 73P8-24496 Heinemann Heinemann Electric no I
73P5-49915 Heinemann Trygon Electric no 79P10-271871 Heinemann Custom Built Controis no 74-P3-29847 Westinghouse Mills & Lupton no 74P3-29975 Westinghouse Mills & Lupton no 81PN8-323950 ITE Stokes Electric no l
87NLB-378913 G.E.
Phase Application no 76Pl7-208909 G.E.
GE Supply no l
83PN1-339617 G.E.
Richardson no 86PLD-370328 G.E.
G.E.
no 85PLB-360281 G.E.
Argo no 78P64-258858 G.E.
G.E.
no 332799 Airpax Airpax no 77P13-226110 ITE ITE no 81PN8-309139 Gould ELS Supply no 354691 G.E.
G.E.
no 76P13-208164 G.E.
Graybar Electric no 77P13-237878 G.E.
G.E.
no 73P63-24483 G.E.
G.E.
no 80P11-277736 G.E.
G.E.
no I
79P15-272059 G.E.
G.E.
no 77P13-231922 G.E.
G.E.
no 79P13-280162 G.E.
G.E.
no 79P13-267860 G.E.
G.E.
no 83PN2-3L6886 G.E.
G.E no 88NLD-39855B G.E.
G.E.
no 84PN2-355718 G.E.
Argo no 81PN8-313043 G.E.
Torres Electric no 78P13-247269 G.E.
G.E.
no 85P69-356793 G.E.
G.E.
no 86PLB-367147 G.E.
Ai jo no 85PN5-361154 G.E.
Creswell no 77Pil-232073 G.E.
G.E.
no 84PN8-348285 G.E.
Electric Motor Sales no 84NLF-81618A
'G.E.
G.E.
no 86PNQ-360111-01 G.E.
G.E.
no 88NLC-81726A G.E.
G.E.
no 70P60-92230 G.E.
G.E.
no 87PLD-380649 Heinemann Mountain City no 82P64-330190 Heinemann Heinemann Electric no 86PLC-376535 Master Control Master Control no 85PN8-356624 Square D B & S Electric no 77P13-237868 Westinghouse Westinghouse no 74P3-29975 Westinghouse Mills & Lupton no i
Note: The reason for non-traceability where GE is identified as manufacturer I
and contractor is that the breakers were not supplied from GE San Jose.
l 0163e/C0C4
=-___
l (cont)
BROWNS FERRY NUCLEAR PLANT MODIFICATION STOCK 4
Traceability Contract Number-Mfgr.
Contractor to Mfgr.
88NLF-74162A GE Nutherm no 87NLB-839168 GE Nutherm no 88NLB-74431A GE Nutherm no 87NLG-839272 GE Nutherm no 88NLE-74152A GE Nutherm no 88NLB-74849A GE Southern Testing no 84PN2-834088 GE American Supply no 86PN2-835396 Heineman Heineman no 1
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SUMMARY
STATEMENT OF BFN COMMITMENTS
(
l.
Replace the 65 installed Class lE safety-related MCCB's that were identified as not traceable to the manufacturer and were purchased between 9
August 1, 1983 and August 1, 1988 prior to startup for each unit in accordance with action item 5 of the bulletin.
2.
Justifications for continued operation will be completed as required to support continued operation in accordance with Bulletin Action item 2 by July 15, 1989.
i I
~
9 e
9