ML20203K690
| ML20203K690 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 08/01/1986 |
| From: | Gucwa L GEORGIA POWER CO. |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 166C, 50-321-1986-001, 50-321-1986-1, SL-1067C, SL-106TC, NUDOCS 8608200364 | |
| Download: ML20203K690 (2) | |
Text
h Mf Georgia Fbwer Company 333 Piedmont Av:nue Atlanta, Georgia 30308 Telephone 404 526-6528 Ma:hng Address:
Fbst Office Box 4545 Atlanta, Georgia 30302 b
Georgia Power L. T. Gucwa l' * ' " "" ' "* IN 4' '"' "
Manager Nacfear Sa'ety and Ucensing SL-1067c 0166C August 1,1986 U. S. Nuclear Regulatory Comission
REFERENCE:
Office of Inspection and Enforcement RII: JNG Region II - Suite 2900 50-321 101 Marietta Street, NW Special Report Atlanta, Georgia 30323 1986-001 ATTENTION: Dr. J. Nelson Grace Gentlemen:
Enclosed is Special Report No. 50-321/1986-001. This report is required by Hatch Unit 1 Technical Specifications Table 3.2-11, Note g and Hatch Unit 2 Technical Specifications Table 3.3.6.4-1, Note b.
Sincerely, d r & e_,
L. T. Gucwa LGB/lc Enclosure c: Mr. J. P. O'Reilly Mr. J. T. Beckham, Jr.
Mr. H. C. Nix, Jr.
NRC Document Control Desk GO-NORMS 860e200364 e60801 PDR ADOCK 05000321
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s Georgia Power d Special Report 50-321/1986-001 LICENSEE
- GEORGIA POWER COMPANY ET AL FACILITY NAME : EDWIN I. HATCH Unit 1 DOCKET NUMBER : 50-321 On July 23, 1986, at approximately 1000 CDT with Unit 1 in steady state operation at 2430 megawatts thermal (100 percent of rated thermal power) and Unit 2 in steady state operation at 1425 megawatts thermal (60 percent of rated thermal power), the Main Stack Post-Accident Effluent Monitor (1D11-P007) was declared inoperable. The monitor was declared inoperable due to an improper detector response observed during the performance of surveillance procedure 62CI-0PS-005-0S, " Main Stack and Reactor Building Units Effluent Accident Range Gas Monitor Model Kaman KMG HRH."
The pre-planned alternate method of monitoring noble gas concentrations was initiated within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> as required by Unit 1 Technical Specifications Table 3.2-11, Note g and Unit 2 Technical Specifications Table 3.3.6.4-1, Note b.
The improper detector response was due to a failed high-range noble gas detector in the Kaman Model KMG-HRH monitor. A new high-range noble gas detector has been ordered from Kaman Systems and will be installed upon receipt. The Main Stack Post-Accident Effluent Monitor is expected to be returned to operable status by September 1,1986.
The pre-planned alternate method of monitoring will be continued until the monitor is restored.
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