ML20094E481
| ML20094E481 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 01/16/1992 |
| From: | TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC |
| References | |
| REF-PT21-92 P21R-92-002, P21R-92-2, NUDOCS 9201240158 | |
| Download: ML20094E481 (1) | |
Text
_.
TV CPSES SITE LIC ID:8178976573 JAN 16'92 14: 3 No.0 0 P.01 i
o N171AL NOTIFICATION OY AN DATRt Janvery 16, 1992 ISSUR REPOKfABLE PURSUANT TO 10CFR21 TOR NRC OPHRAT!ONS CENTRR REPet TU HIMCTRIC, GLEN ROSH, THXAR YACSIN!!A NO. 301-492-8181 COMANCllK PEAK STEAM El2CTRIC STATION CONVIRMATION NO. 301-951-0550 DOCKLT Not 50-44%o UL NO, HPV-81 DOCKh7 NOS S0-446, CV NO, CPPR-121 SUDJECT P21R-92-002 DRSCkif710N PAGR 1 of 1 A deficiency was lderollfivd involving bolting material, connocling bonnat to yoke, var Cupos Vulcato valves supplied to Comancho Peak by Westinghousa.
This boll i nn ora t o r i a l i s evnevn tv must Gores Vulcan valves at CPS!:S and is shown no i t een #11 un drawings supplied by the vendor.
The bult ing maters al in quest ion (5/B" socket hd cap screw, 1 1/8" ic, 11 UNC) was specified on Coros Vulcan drawincs to be A193 bb matortal.
Cont rary t o thcac sg>ccificatinne, t he vendor-t ust alled mat erial was of a lovur yield St rengt h t han t he grade syncilled wi t h a chemical composi t ion s quivalent to ASTM T831 typo XM1.
Thu waleriel has buun assessud (Or both unit 2 and no dat rJtrent al cifcctn on
. valve function have hcon found.
Althcugh this deficiency has not resulted in a scenario which would creato a "Significant Safety Harard" at Comanche Peakl TU Electric has c]ceted to volunturily report th3e isouv under 10CFR21 because it is boliovad that the NRC is interested Jn issues of this nature.
ADDITTONAL ACTIONS PLANNRD A complete written report vill bn submit t ed by 02/13/92.
Efforts to schcdulo holt rcplacement are ongoing.
Al10]TJpHAL NOTIFICATioMS NRC Scgion JV staff CPSCS NRC Resident staff idSEEWEL.9%TACTf S }
U. G. Caldemand, Hannger, Sito Licensinc, (817) 891-8139 GN,f_lf}fATION OF FACSIMILK BY t __.
(TU RISCTRIC)
T08 (NRC QPS CTR)
Art (TINH) 920124015e 92011A ADOCK0500g5 PDR e
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