ML19340D380
| ML19340D380 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 12/22/1980 |
| From: | Colombo R SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | Engleken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| IEB-79-01B, RJR-80-688, RO-80-47, NUDOCS 8012300467 | |
| Download: ML19340D380 (2) | |
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S ACRAMENTO P.'UNICHL t'?!U r' O!STT!!OT Z !.71 0 Street, b !!3:3. Lcometc, Cahf:,mia 35313, (S16) 5 2211 RJR 80-688
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December 22, 1930 Mr. R. H. Engelken. Director Region V Office of Inspection & Enforcement U. 5. Nuclear Regulatory Commission 1990 North California Boulevard Walnut Creek Plaza, Suite 202 Valnut Creek, California 94936 Re: Operating License DPR-54 Docket No. 50-312 Reportable Occurrence 80-47
Dear Mr. Engelken:
In accordance with NRC Bulletin 79-01B, the Sacramento Municipal Utility District reports Licensee Event Report No. 80-47.
The documen tation search for flow transmitter FT-20001 (Foxboro Model A2020LA-FD) has determined that the instrument does not Qualify for the service environment. The transmitter measures flow to the emergency sump and the coolant recirculates to the core via the decay heat system.
Continued operation is justified because a fully qualified Class I alternate flow path to prevent boron precipitation exists through the Decay Heat /HP! system via the auxiliary spray line.
A complete report will be submitted within 14 days.
q Sincerely, h
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Ronald W. Colombo
,V Technical Assistant to the Manager of Nuclear Operations RWC:Jr cs: Director, MIPC (2) i j l$
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