ML20085G274
| ML20085G274 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry, 05000258 |
| Issue date: | 10/05/1973 |
| From: | Green H TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20085G265 | List: |
| References | |
| BFAO-7325T, NUDOCS 8308240751 | |
| Download: ML20085G274 (1) | |
Text
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]LC 2057298316 (CM TDBN AT JS AL 127 10-05 0513P EST ZIP 30303 US ATOMIC ENERGY COMMISSION REGION 2 DIRECTORATE OF REGULATORY OPERATIONS 230 PEACHTREE ST NORTHWEST ATLANTA GA 30303
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BFAO-7325T AT 545AM ON OCTOBER 5 1973 DURING PERFORMANCE TEST OF THE HPCI SYSTEM THE HPCI FAILED TO OPERATE PROPERLY. THE HPCI SYSTEM ISOLATED AUTOMATICALLY DUE TO A LEAKING EXHAUST 1
RUPTURED DIAPHRAM. THE REACTOR WAS OPERATING AT APPROXIMATELY 5 PERCENT POWER AT 1000 PSIG PRESSURE. SURVEILLANCE TEST OF REDUNDANT CORE COOLING SYSTEM VAS BEGUN IMMEDIATELY. DURING
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SURVEILLANCE TEST OF THE RCIC SYSTEM AT 745AM THE RUIC TURBINE GOVERNOR t%LFUNCTIONED CAUSING OVERSPEED TRIP. REACTOR SHUTDOWN VAS STARTED IMMEDIATELY. AFTER SLIGitT RCIC GOVERNOR ADJUSTMENT THE RCIC VAS RETESTED AND DECLARED OPERABLE AND REACTOR SHUTDOWN VAS TERMINATED INVESTIGATION OF THE HPCI RUPTURED DIAPHRAM DISCONTINU ING
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