ML20246D047
| ML20246D047 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 05/11/1989 |
| From: | Zech L NRC COMMISSION (OCM) |
| To: | Bates J HOUSE OF REP. |
| Shared Package | |
| ML20246C933 | List: |
| References | |
| BATES-890511, CCS, NUDOCS 8907110224 | |
| Download: ML20246D047 (1) | |
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ig OUESTION 11 San.Onofre I has also not been. required to-install proper instrumentation to detect inadequate reactor core cooling nor has NRC demanded that Edison complete testing and analysis for several safety-related valves and pipes associated with cooling.
L Why?
ANSWER The instrumentation to detect adequate core cooling is a reactor vessel water
. level instrument.
It provides useful information to the operators in situa-tions involving loss of coolant (water) from the reactor coolant system. As.
discussed in the answer to Question 9, an NRC order dated May 10, 1989, requires SCE to install a reactor vessel water level instrument by the next refueling' outage (spring 1991).
On February 24, 1989, the NRC staff issued its Safety Evaluation regarding testing of relief and safety valves. The evaluation contained a few minor open items which will be audited by the NRC staff. Any additional actions required of the licensee will be completed by the next refueling outage.
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8907110224 890616 PDR COMMS NRCC CORRESPONDENCE PDC i
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