ML20138P173
| ML20138P173 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 12/09/1985 |
| From: | Koester G KANSAS GAS & ELECTRIC CO. |
| To: | Martin R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 85-014, 85-14, KMLNRC-85-265, R-851209, R0-851209, NUDOCS 8512240353 | |
| Download: ML20138P173 (4) | |
Text
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-T KANSAS GAS AND ELECTRIC COMPANY THE ELECTReC COMPANY GLENN L N O E S T =.
voce enssecant mucLeam Decenber 9, 1985 33@ BOMB @
Mr. R.D. Martin, Regional Administrator
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J, U.S. Nuclear Regulatory Comnission i
Region Iv i DEC 12 S83 611 Ryan Plaza Drive, Suite 1000 1
Arlington, Texas 76011 KMLNRC 85-265 Re:
Docket No, SIN 50-482 Subj: Special Report 85-014
Dear Mr. Martin:
The enclosed Special Report is submitted pIrsuant to Technical Specifications 3.3.3.9 and 6.9.2.
Yours very truly, 0
k Glenn L. K ter Vice President - Nuclear GLK:see Attachment xc: PO'Connor (2), w/a JCunnins, w/a 1r }Y e
O c\\0 t
6 8512240353 851209 hf PDR ADOCK 05000482 S
pyg 201 N. Market -Wictuta Kansas - Mad Address: RO. Box 208 i Wichita, Kansas 67201 - Telephone: Area Code (316) 261-6451 l
n.
SPECIAL REPORT 85-014 LOOSE-PART DETECTION SYSTEM INOPERABLE CHANNEL This Special Report is being submitted pursuant to Technical Specification 6.9.2 and Technical Specification 3.3.3.9, Action Statement a, concerning a Loose-Part Detection System Channel which has been inoperable for more than thirty days.
On October 29, 1985, at approximately 1555 CDT, Channel 8 of the Loose-Part Detection System was declared inoperable. Channel 8 had been exhibiting
. signs of erratic behavior, and had been the source of numerous spurious alarms particularly during plant startups while Steam Generator feedwater was being manually controlled. On October 29, during the process of troubleshooting the source of the spurious alarms, a determination was made that the Channel was inoperable. The Channel 8 accelerometer is located on the lower support flange of Steam Generator "B".
During subsequent troubleshooting efforts, no problems were identified in the processing cabinet circuitry or in the cable upstream of the charge converter. It is currently postulated that the problem is either in the charge converter, in the cable between the accelerometer and the charge converter, or in the accelerometer itself. Due to the plant being at power and at normal operating temperature, further troubleshooting has not been possible.
Further investigations will be conducted and repairs made as necessary when plant conditions are appropriate for a sufficient period of time or during the first refueling outage.
K s
KANSAS GAS AND ELECTRIC COMPANY T*4 ELECTAC COMPANY OLENN L.
mossTEn vsCE EteDimf hwCLaae Decerrber 9,1985
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Mr. R.D. Martin, Regional Administrator U.S. mclear Regulatory Comission Region IV q
DEC 12 E5 i
611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 KMLNRC 85-265 Re:
Docket No. SUN 50-482 Subj: Special Report 85-014
Dear Mr. Martin:
The enclosed Special Report is submitted pursuant to Technical Specifications 3.3.3.9 and 6.9.2.
Yours very truly, 6f Glenn L. Koester Vice President - mclear
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Gm:see Attachment xc: PO'Connor (2), w/a JCumins, w/a l
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t 201 N. Market - Wictwta, Kansas - MaH Address: PO. Box 208 I Wichita, Kansas 67201 - Telephone: Area Code (316) 261-6451
SPECIAL REP 0ff 85-014 LOOSE-PART DETECTION SYSTEM INOPERABLE CHANNEL This Special Report is being submitted pursuant to Technical Specification 6.9.2 and Technical Specification 3.3.3.9, Action Statement a, concerning a Loose-Part Detection System Channel which has been inoperable for more than thirty days.
On October 29, 1985, at approximately 1555 CDT, Channel 8 of the Loose-Part Detection System was declared inoperable. Channel 8 had been exhibiting signs of erratic behavior, and had been the source of numerous spurious alarms particularly during plant startups while Steam Generator feedwater was being manually controlled. On October 29, during the process of troubleshooting the source of the spurious alarms, a determination was made that the Channel was inoperable.
The Channel 8 accelerometer is located on the lower support flange of Steam Generator "B".
During subsequent troubleshooting efforts, no problems were identified in the processing cabinet circuitry or in the cable upstream of the charge converter.
It is currently postulated that the problem is either in the charge converter, in the cable between the accelerometer and the charge converter, or in the accelerometer itself. Due to the plant being at power and at normal operating temperature, further troubleshooting has not been possible.
Further investigations will be conducted and repairs made as necessary when plant conditions are appropriate for a sufficient period of time or during the first refueling outage.
1